67L

From

THE PROCEEDINGS OF THE
ROYAL ENTOMOLOGICALSOqETY OF LONDON
Serie$ B. TAXONOMY
Vol, t7, Parts r-2t Fcbruary zoth, rg48

The Royal Entomological Society of London,
41, Queents Gate, S.W.7

ltt

NEW OR I,ITTLF]-KNOWN SPECIES OII EXOTI(] TIPULIDAI.J(DIPTERA)-\'Rv Pnornsson Cnenr.BsP. AIcxANDER,I'.R.E.S.
(M assachu.setts
State College,-.lrnherst, M assochusetls.)'fnn irnmediately preceding part under this titlc was publislrcd in 194ti.
Proc. R. ent. Soc.Lond. (B) 15 : lB2-r89. In the presetrt report I anr
continuing the survey of the Ethiopian TrpulrDAE, the majoritr. of'the
species herein considercd being fronr Southern Rhodesia lvlicrt' ther*"." collected by the late MrI Alexander Cuthbertson. As inclicatctl
undel Part III of the series,by Mr. Cuthbertson's last wishes,the t1'pesof the various novelties baseclon his rnaterials were to be distributecl as
fbllows : the first specimenin the author's collectiou, the sccoutl in thc
Rritish Museum (Natural History), the third in the RhoclesianMuseturt.
Limonia (Metalimnobia)tigripessp. n.
Size relatively snrall (wing, l'emale,lessthern8'5 mrn.) : generalcolorirtion of tnesoltottttrr
rlsrk brown, the praeserrtum rvith three conspicuous yellow stripes ; head above l'ith rr
silvery vitta, bordered on vertex by brown areirs ; thorat'ie pleura 1.rale,with a ntlrro\r'transverse brown girdle on the mesepimeron ; legs yellow, the femora with fotlr tl:trrou
brown rings, the last narrowest, subterminal in position ; wings with the ground colottr
vellorv, conspicuously patterned with dark and paler brown clouds and tnarblings : nt-ctl
rtbottt one-third its length beibre the fork of ,l/ ; abdomen with the more basal tergitc.
rnediurn brown. the outer segnrents nrore brownish-yellou'. restrictedly patterlrerl rvitlr
brown.
Fentak'. Length about 8 ttrttt.; wing 8'i] mttt.
Rostrunr and palpi black. Autelrnae u'ith the s(raperrnd peclicellight vellow ; llagt'lhrrrr
broken. Head lrith l'ront and anterior vertex silvery, the t:olour cbntinuerl over the posteriorvertex as a eapillary silvery vitta, bordered on either side by dark brown markings ; sidesof posterior vertex :rnd the genae llrownish-yellorv ; anterior vertex nilrrow, less than tht'rlianreter of scape.
Pronotum yellow medially, with a nrlrroryer llrolvn sttblateral stripe, the latcral borders
lrrownish-yellow. Mesonotal praescrutunrwith tlrree conspicttotts vellou' stripes, tlte irtterspaces clark brown ; median pale stripe broadest, lateral stripes cottfluent rn'ith the pale
humeral areas ; darkened interspaces bordering the rnedian yellow trrea for its entire lt'ngthwith the exeeption of a short break at or just beyond midlength of the sclerite ; st'tttt'lltttrr
and the restricted median region of the seutunr tt'staceotrs, silvery prttinose I ear<'hst'tttal
lobe variegated yellow anct dark brown, the latter including an extensive area adjoining
the mirlline and a small isol:rted latcral spot ; mediotergite chiefly blackened. r'aguelr'
paler on central portion and behind ; pleurotergite extensively blackened, the posterior
ventrll portion paler. Pleura chiefly pale, espeeiallv on the nresellisternum ; mesepinteron
with:r nanow brownish-blaek transverse girdle over the pteropleurite, becoming narrower
rrnd much less evident on the meron ; a narrow transverse darkening over the cephalicportion of mesepisternunr. Halteres with stenr yellou', knob broken. Legs with the coxa('
pale yellow, the fore pair vaguely darkened basally ; trochanters yellow ; femora yellou'
with four dark brown rings that alternate with the ground interspaees, the light and darkrings subequal, the apex yellow; subterminal dark annulus narrower than the others, themost basal one, at near two-fifths the length of the segment, somewhat more diffuse;

l)rrrl'.('. 1'}.,,\lt.xarrrler
on (totic'I'ipulidur

t9

tibiae yt'llou', tlrt tips narrowlv but conslricuoush' bros'rristr-blar.k: tarsi 'ellorv. \\ i'gs
rvith the grottrtd colortr vellorv, tttore saturated in thelrreirrcrllar autl llrol6 costul fielrls.
consPir:ttotrslypatterned rvith <lark and ptrler brown ; the forller urt,ls include forrr small
spots in ct'll Il, the first art'ular, the third at origin of Rs, the last at lirrk of r?.s: stign'r
vcllor.r'.llarrowlv ringed with brown ; other srnall darker spots at fbrk ,l' .S'c,rrlo.g corrl
itnd ottter elttl of cell lst :lfr; the yralebrorvn clouds or lrrarblilrgs oe(.ul)v all cells bel.onrl
torrl :rn<lbehind vein ,11,being nrore extensive than the grounrl argAs: r'eins vellow iu th.
briglrter ground lield, light brou'n in the nreditrrn portions arrrl rlurk brol.n in the darkest
Itre:ls. Stigrna u'ith rr ferv triehia. Venatiorr : ,SC, encling a[orrt opposite three-fift6s /ls.
5'c, near its tip ; Il, an<l I'ree tip of ,Sc, sgbequal or the latter 1 little longer ; R.s lonE.
angulatetl at origin; cell lst II, about equal in length to the rlistal section of vein J.fr:
nt-crrfrotrt trbottt one-thirrl to one-fburth its length belbre the f'<rrkof fI.
.\btlrlttten u'ith the lttore ba.saltergites rnedirrnr brou'n. the outcr segrrrents,ilelrr4ing
thc ovilxrsitor, llaler anrl brighter, brownish-t'ellorv, tht. llosterior laterll angles of' thl
segmetrtsrestrictedlY nlore darkened ; sternites y'ellotr'.the posterior'lrgr.rlersn1rrol'lrlrirlt.
browtt, lttore intetrst'lv so on the posterior lateral corners i bltsesol' hr'poyrrlr-ilgrr.rr9*.1'
blat'kt'ned. Ovipositor rvith <.er<'islerrcler,gentl;- rrp<.urve<l.

Ilolotype, l. llinrborninrbo, ('anteroun. illst .fanrrart'. lgBS (Jacob^-1.Iteis) ; Alexa,nder Collt.r:tion.
Limonia (Xletalimnobia) tigripes is quitc distinct l'ronr all othcr.
rcgional menrl)ersof the gen-us.Despite tlrc laek of zr nralc specinrcn.
I lravtr littlc hesitancv in rt'ferring the spcc:iesto Ilctalirnnobia, $,hcrt,
it is rrrostsirnilar to speeiessrrclrri* f . tfu.l a,trichoptcraAlcxander, r.t't
qllite rlistinr,t.
Limonia (Dicranomyia)sordidipennissl). n.
lft'ltrrtgsto thc tristis groltl), allietl tomarshulli I general eoloratior)grev. t5t'prur.s<,rrtrrrr
rltore grcvish-brorvn, the nre<lianregion darker brorvn but rvithout rlistingt ltrtt,ral strilres :legs light llrorvtt, tlte tertlrinal segnteuts tlurker ; u'irrgs pirrrolr'. about lir-r, tilrgs 1s 16.9
:rs llroad. u'itlt ir lrrog'nish tinge ; inrrer r:n<lof <,r'll11.,lving l'rrrlxrsarl ol' tlrt. other elelnt,nts
corrrprisitrgthe atrtt'riot' corrl : nb(u, oblirlrrr., aborrt three-lil'tIs its 1'lgtlr l-rt'forctlrt' ['r.kof M ; nrale hvpopvgiurtr u'ith tht' r':ruclalbonler of tlre niltth tergite strongly (.on\.(,\ ibasistvle u'ith a blat'kened lobttle on face, arlrlitional to thc ventrtlrrresirllobc; r-r'rrtrirl
rlististvlc rvith tlrree rostral sllines; gonapol)hvsess.ith tlrt, rrrt.sirl-irPi<,rrl
lobe itrr irr.rrtc
crrrvetl blackeneclhook.
.llale. Length abotrt 7 rrurr.; u'ing tt.2 X l.(i nrrrr.
ltostrttttt trnd llttlpi bktck, thc lbrrrter solrrervhatlerrgtll'nr'rl itrrrl pt,prlurrt. ,\lrtt,rrr'r.
lrlrrt'k throughtltrt.: flagellar segrrrerrts
oval. Iletrl liglrt gr(')'i antelior r.r,rtes *iiqlrtl'.,r):rrrower than tht' rliantett'r of the scape.
Pronottrltt tlark bron'lt. llesonottrrrr chieflv grev, the posterior s<,lel.ites<.lerrrliglrt gr(,\. :itttrlscutitllolrt's
q'itI
tttorcgrevislt-brown,
the forlrrel
1rl'itest'ttttttrl
ir darker brolvn nrt'rlilrrr
stripe, the latt'rttls not rlifl't'rentirtterl. I)letrra grcy. Ilalteres relutiyt'lv lolrg, sterrrg'5itt,rt,rl.
knob infirst'lttt'rl. Legs u'ith tltt' coxae pale, pruinose ; tror,hunters r.t,llou'; rernain<lt'rol'Iegs light lrron'tr. the terltrinal segments darker ; fore fenrorl rrgt <lill'ere1tip colour I'r9rrr
thc' other pairs. \Vings nirrrow, n'ith a brorvnish tinge. the preurr.ular 1p<l costal porti6's
Pitler vellorv ; st.igtnaverv small art<lineonspicuous,rr littlc darker than the ground : <.orrl:rntl otttt't' t'nd of' t'cll lsl i/" vagttcly seanred u'ith tlarkcr : uxillarv arrglrrdrrskv ; r'eins
tttt'tliutrt ltrorvlr. Venatiott : S-c,errding opposite or just beyonrl the origil of fts, ,Sc, 'ear.
its tip and opposite this origin : intrt'r t'nrl oI' r.ell Il, lf ing Iar basad ol' thc other elenrentsof the anterior cord, itbout opposite thc cephalic end of m-cu; eell lst rV, small, shortcr
than vein II n ; rrt-cuoblique, about three-lifths its length bcfore the fbrk of JI.
.'\bdomen, ineluding hvpopvgium, brownish-blaek. llale hvpopvgium with the eaurlll

20

Prof. C. P. Alexandet on neu)or little-known

trorder of tergite strongly convex, the cephalic margin mueh less strongly so ; setae oftergite sparse, ineluding a pair on either side. Basistyle with the ventromesal lobe elongate,with numerous long setae on outer third, including a small pencil of darker bristles ; aslender blaekened lobe on faee of style, this tipped with several elongate bristles. Dorsal
dististyle moderately stout, heavily blaekened, a little expanded before the long straightapical spine. Ventral dististyle of nearly the same area as the basistyle, more or lesstriangular in outline, gradually narrowed into the rostral prolongation, the latter withthree slender spines on the outer margin near base, these placed close together (a single
ventral dististyle of the unique t1'pe remains). Gonapophyses with mesal-apieal lobe anaeute eurved blackened hook.

Holotgpe,g, River Makabusi, Salisbury, Southern Rhodesia,March,
1932 (AleuanderCuthbertson).
The nearest relative of the present fly is Limonia (Diuanomyia)
marshalli (Alexander), rvhich bas rather similar elongate unpatternedwings. In this speciesthe wings are clearer,with distinctive venation,
including the position and courseof m-cu. It must be assumedthat thetrispinouscondition of the ventral dististyle is normal for the species.
sp. n.
rhodesiae
Atarba(Atarbodes)
General eoloration chestnut yellorr, unpatterned ; antennae with basal four or fiveflagellar segments testaeeous yellow, the outer ones passing into brown ; legs yellow, only
the terminal tarsal segments weakly infuscated; wings with a yellow tinge ; Sc short,^9c,ending opposite or just beyond the origin of Rs ; branches of .Rsdiverging very gradually,cell R, at margin more extensive than cell R, ; male hypopygium with the dististyle single ;gonapophyses produeed into a slender spine, its tip strongly curved.
Illale. Length about 4'54'8 mm. ; wing 5'5-G mm. ; antenna about l'2-l'3 mm.
Rostrum yellow; palpi brown. Antennae with scape and pedicel yellow; basal fouror five flagellar segments pale testaceous yellow, the outer segments passing into darkbrown ; flagellar segments short-oval, the terminal one more elongate ; verticils exceeding
the segments. Head testaeeous yellorv.
Thorax almost uniforrnly light chestnut yellow, without pattern. Halteres with stettt
vellow, knob u'eakly darkened. Legs rvith the coxae and trochanters ehestnut vellow;
remainder of legs yellow', the tips of femorl not or scarcely darker ; terminal tarsal segments
weakly infuscated ; no tibial spurs. l\'ings u'ith a yellowish tinge, the prearcular and eostal
flelds some*'hat more saturated vellow ; veins yellow. l\Iacrotrichitr of veins longer andmore conspieuousthan in capensis. Venation : ,Scshort,,Sc, ending opposite or just beyond
the origin of Rs; branches of Rs diverging from one another very gradually, cell R, atmargin being more extensive than eell R, ; cell Isf M, rectangular. In capensis,the branchesof Rs are nrore divergent, thc anterior one nearly straight, eell R, at margin being onlv
about four-Iifths as extensive as cell -Rt
Abdominal tergites brou'nish-yellow ; sternites and hypopygium clear yellow. Male
hypopygium with the single dististyle appearing as a pale blade, on the outer margin atnear midlength bearing a very porverful curved blackened arm that is tipped with several
strong spines, with fewer appressed spines on the outer margin I surface of style at andnear the broad juncture of the arm with about fifteen conspicuous setigerous punctures.
Gonapophyses appearing as flattened plates, each produced into a slentler spine, its tip
strongly curved. Aedeagus elongate, the truncated apex u'ith abundant delicate palesetulae.

Holotype, $, Chirinda Forest, Southern Rhodesia, altitude 3,600 feet,
November, 1930, at light in forest (CuthbertsozNo. 2807). Allotopotype,
Q, Paratopotypes, 2 $.

specit:toJ'euoticTipulidae

2t

1'ltt' ttt<ist.sinrilar leg'iona,l specrcs is ^:ltctrba (Atarbodes) cepensis'\lcxa.tttlt'r. rrlrich differs in tht' <'oloration of the bodv, antennae and
It'Sl, alt(l il) the tletails of' vcnatioll. I cannot give a descriptior-rof the('onrparerl rvith the tropical East ,\frican
rrralel.yPopygiunr of cap(nsis.
('1.) je.annt'li (Riedel). the present fl1' differs verlr corlspicuouslv in:!.
tlte t't'ttatiott, alrtennae artrl stnrcturc of thc nlale hvpopvgiunr.
Gonomyia(Idiocera)subspuriasp. n.
(ienet'al t'oloration llrorvnislt-grcv to plrrrrrbeorrsgrel-, the surfaee opa(luethrorrghout ;ittttt'nn:teblack: li'ntora arrtl tibiat'obscurc vcllol', the tips nrore inl'rrseated; rvings with:t grt'vish tittge, thc 1tl'e:trcttlarattrl costal regions light vellorv ; stignr:r vcry pale brorvn :St', r'ett' long, trearll- tu'o-thirds tlte length of the lotrg /1.s,ending at near one-sixt[ theIt'ngth of }ls I vein Il, strottglv arcrraterl. onlv rr little shorter tlrrrn the petiole of cell Il, :rrbdontinal tergites rl:rrk bro.rlrr.
tr'enale. Length aborrt 6.5 uun. ; rving (i nrrrr.
lLostrttttrand 1la\ri black. ltrtenttae black throughotrt : flagellnr segmentssrrllt.vlintlri<'alto long-ovrtl, the longest r-ertit'ils rrnilatenrllv distributed, sliglrtlv exceeclingtlre stgments
in lengtlr. Head dark grel', rvith a rrrore brorvnish-grev sltot on anterior vertex. the latterbroad, :rpproxinurtely four tirnes the rlianreter of sctrpe.
Pronottttu plttntbeotts grey. pretergites a little nrore brightenerl. llesonottrm darklrrorvtrislt-grev,the srtflu<rcopaquc ; Iatcral praescutal borders llaler grcy ; pserrclosrrtural
Itrvettc blrrt'k. Plettra durk plttmbeous grer-. rvithout pattern. Halteres obseure brorvnishrr'ltite. Lt'gs rvith the t'oxrre lllttrnbeorrs: troclurrrters obscrrre yellorv ; femora antl tibile
ollst'ttrt' r't'llotr', their tips nrore inlirseuterl ; llasitarsi obserrrevellorv, orrter tarsal segnrents
Pttssittg irrto bl:tck. \\'ings with a grevish tingc. the prerreular anrl r.ostal regiorrs liglrt
vt'llou' ; stigtnir r-erv llltle llrou'n. scutt'r'lv rlrrker than the grorrnd I veins pale lrrorvn, nlor'('vellort't'tl in tlte lrrightenecl fields. Vcn;rtion : ^5t short, ,Sc,endlng u short distanee beyonrl
tht' origilr of ll.s. at near one-sixth or one-seventh tlre length of the lntter ; S'c, r'ery long,
ttt'arlv tn'o-thirds the length of the long 1l.sor allout four tinres r-nl : petiole of cell Il.
u'<'itklv ttngttlittc<lat trear orte-thirrl tlrc lt'rrgtlr : r't,in 11, r'erv short lnd nearly tr:rnsverse.
sttlrt'r1uul
to tlte llrsul section ol'r'cin .11,1r i vein /1, aborrt five tintes as klng, arerrirted.lr
littlt'shortcr thiut the petiole of cell /lr; <'ell2nd )'Irabout one-hnlf longer tl'rtrnits pr:tiolc :at-r'trabout onc tnd one-half tirrres its length llefore the lbrk of ill : anterior arerrlus faintlv
lrrt'sen'ed.
.\bdrlnritral tergites atrd ltasrtl stt'rnitt's rlurk brorvn, the otrter sternites rnore [rou'pislr
5'ellou'.

Holotype, J, Stanrlorrl F arnr, Salisbun', Southern Rhodesia, 7th
Decernber, 1935 (Cuthlterf.sonNo. 4281).
Tlrc' rrrost sinrilar rcgional spccies are GononxAia(Idiocera) aldabrensis(Ii<lrvarcls)antl G.(1.) sprtricl Belgroth. 1'rorrrboth of rvhich the prescnt
flr-tlil'l't'r's
in the dctails ol'cololatir)n of the bocll',legs all(l wings. and in
tlrc rlctails ofl vcnatior). Tlrt' rn()rediagnostic features of tlre rnale hypnpvgirl lrave tlot beelt rlesr:riltc<llbr anv ()f these species.
Gonomyia(Idiocera)glabriapicalissp. n.
Siz,t'r't'l:rtirt'lv large (rvirrg.rttalt'.(i lrrrrr.or rnore) ; rnesonoturubrow'rrish-grer',variegatt.rl
n'ith clarkcr blou'n lrnrl vellou' : lrt.trd above clark grey. the frorit and orbits r.learer grey ;Italtt'rt'sittlitst'att'rl: f'enrorrrollst.rrlcl't'llorv, the tips rveuklv infuseaterl; tibirre vcllow, tips
tt:trl'orvlt'lrla<'k: rvings lrrot'nislt-r'cllorr'.rvith a vcn'rt'slricterl lrrorvn pirttertr: ,5'r"
short.
^ \ r , r ' t t r l i t t gr t l r o t t to ; l p o s i t e ' t l t t ' o r i g i r ro l ' l l , v ; r r ' l l 1 1 .r, r ' l : r t i v t ' l r ' l i r r g t 't.l r c a r r : u a t r . .r<- lt " i nI l ,sttbetltutlirr lcrrgth to tht' petiolt'ol'r,ell /?.,: rr-crr irborrl ts'iet, its length bel'orc the fork ol'

q6)

Pr<rl'.('. P. Alexan<leton nezrot'little-hnoa;n: tltt'tt: rlististvlt's.
.V; nrale hypopl'girrrrrrr-iththe irpex of blrsistr'lt'sttbat'tttt'itn<lglittrtrrtts
trt'ttrlt'
str':riglrt
rods; itt:tlcitgtt.
rts
silnplt'.
appearing
inner
st1'lesthe internrediatc arrc[
striright, entirell' pale. the ilpex narrorved itnd l'ecbh' <lilrttcd into it stttitll Iteittl.
,lIale. Length irllottt 5'5.-6 tttttr. ; rving (i'-6'8 trlttt.
tr'enutk. Lengtlr itlrottt 7'5 nttrt. ; rving 7 ttttrt.
Itostrunr brou'nislr-black: lralpi black. Antennirt: tvitlt scupt' inl'ttst'utcrI bt:ncat.h,lighter eolotrredon tU)lx'r t'rrceI pedicel obscure-yellorv; basal lltrgellarsegtrtentsrvhitenetl.
the outer ones ltassing into lrrol'n ; flagellar segmentsot'rtl to long-ov:rl. I{t'ad dark grer'.
the front and orbits eleitrer light grcl' or bttl'fv grer'.
Pronotutn brolvnish-grt.v rrrc<lially, obscttre vellow on sitles ; plett'rgites pale yellos'.
trlesonotrrm brownish-grc)', the praesettturrr u,ith more or less distint't clarker stripes, bestshown b1' the darker lnsterior half of the uretlian stripe : sctttum brownish-grev, verv
restriett'dly pattcrned u'ith darker brol'n, thc posterior lttteral t'rrllositiesorang(' ; s<'utellrtttr
orirpge, the median region irt llase narrorvlv dirrketretl ; ntediotergite brotvnish-gle1-,1'ellou'
larterally,llleurotergite obsr.rrrc1'ellorv.its veutrrtl yrttrtiotttttore pruirtose. Pletrra re<ltlish[rorvn to ]rrorvn, u'ith l nlol'(,or less poorlv indicuted. tnort' r't'llotvish.longitudinal strilrc
lrcginning tur lrroplcunr, t.rossing the tlorsal sterno;rlettritc ort to th<' ttleroll, this striltt'best inrlic:rtetl in tht' holot;-1rc; rlorsolrletrrrrllnetrtbratreprtlt: vclkru'. llalteres ittl'ttst'trtcltl.
the extrenrt' ltuse o{'sterrr briglrtened. Legs u'ith coxae pale. rvettklv ittfttsctrtedon basal
portions : trochanters testaeeotts vellow ; fetnont obst:ttre 1'ellorv, the tips u'eaklv int\tseated; ti|iae vellou'. thc tills nlore narrorvlv brrt cottsltit:ttouslyblat'k: basitarsi 1'ellorv.
thc tips arrrl renri.rintlerof tarsi brorvnish-bl:rt'k. \\-ings u'ith ir lrrolvttish-t'cllos'tinge. tlrt'
Preurctrlar and costul lields clearer yellorv ; a very restrietetl and incortspicuous llrol'tr'ttt-cu; stigma trrrtl tilt of vein .Iln :lrattern. as follows : Areuhrs ; origin ol' R.v; t'ord andveins obscrrre yellon' to llrownish-yellon'. sortrerl'hat <ltrrker in the patterrterl ltrea's. Vetrrttion : ,Scshor.t, Sc, ending opposite or irnntediatelv bevotrtl oriqin of R.s; cell /lr relativelv
large, the arcuated vein R. lrcing srrbequal to or evt'tt longer than the lretiole of ccll llr :<,ell2ruJ .lf, about one-half longer than its petiol(' ; n -cu tbottt tu'i<'e its length belore t lrt'
fbrk of il.t.
Abdonrinal tergites dark brou'rr. the posterior bor<lt'rsof thc seglttcnts t't:rv ttarrorvltl,ellorv ; sternites vellorr' ; hypoprvgiurrrbrowtrish-}'t'llow. Ilalc hvpopvgittttt u'ith thc itPicrtl
lobe ol'ltasistl'le elongate, flattcned, subaeutely pointed at apex, the tlisttl thit'rl or rrrort'
llifid, tlrtr lou't'r bltrekt'ttt'<lglabrorrs. Three dististyles, the ottter strongly ancl tutcqtrall.v*
bralch uborrt one-half as long as the orrtcr, the latter lnore pointe<litt ttpex ; ilttt:rtrtetliatt'
branch or stvle shortest,trppearingas rr ncarly straiglrt glrtbrottspale rotl. its tt1rcxsttbat'tttt'i
inner st1'leol'about the strmcsherpeas the last but, somcrvhatlrtttg<'r,httvittg about ts'it't' tltc
rrrea, its tip obtuse, surf:reervith aborrt cight long pale setae. Aedeagus straight, ctrtirelv
ptle, the surlhee u'ith aborrt a doz.enpale setae ; apex nArrou'erl,dilatetl iuto :r sntall hertrl
llut senrcell' rlecttn'ed.

Holotype, $, Stamlorcl l'arnr, Salislnrv. Southeln ltlrotlt'sra, 7t,lr
No. 428f ). Allotoytot?lpel)ccerrrbei,1935 (Cuthberlsorz, ?,30th Novenrlrt't',
I9:J5. PuratopotyTtt:.6i. rvitlr tht' ar,llotype.
(Idiocera) glabria'picalisis retrrlilv rlistinguished I'ronr tlrc
GonomTfiaother African speciesof thc sul)gcrlusthat havc pattcrned riings lrr,"thc
strtrcture of' th(r male hvpopl'giurrr. ft is nrost silrrilar to G. (1.) thomas'
satianasp. lt., yct entirelv <listinet.
sl). n.
Gonomyia(Idiocera)thomassetiana
l f t ' s o n o t r n r r < r h i e t l l -g r e l ' , t l r c p l i r e s t ' r r t t t t r u ' i t l r l ' r t t t t ' l r r o r v t t s l r i p t ' s : l l t o r a c i r r p l e t t r t t .
int'ludiug plerrrotergitt.'elear llalt: vr'llou'. r'lguelr' pattt'rnt'rl rtith rttorc reddish :lr('ils;femora yellorr, tips t'onspir.rrouslv hrorvnislr-hlack : rlittgs rrith it rvt'itk grel-ish titrge. r'er1'
n : s t r i e t r d l r ' : r n r l i r r t ' o r r s p i < . r r o r r s l l ' p a t t t ' t ' l rrtv' ri lt l t l r r o r v t t : , 5 c , r ' r t t l i r t gl r l l o t t t o p p o s i t c r t r r t ' -sp((ics of'ttoti.c Tipu,lifurc

gl|l'otrrtlrthe length of ll.s. Sr'r,just bel'olt'tht'origin ol'thc luttcr r r,ell /J.,r.erv snurll : m-c1
rtbout trvit'e its length belbrt' the lbrk of .l/ I rnale hvpopvgirurr u'ith thc lobe of bruistvlt.
t'lottgtrtc.obtuse at tip ; tltret'dististvles, tlrt.outcr one ltrrlkerlut :rpex: intcrlrrediatesty1,
lt strttnglv t'ttt'r't'<lr0rl. tltc tip bLrckt'netlirntl lrrrrron'r:rl
into ir ;rorverfrrlspirre.rvitS a4diti6lrrl
st'ltl)rtlttspoirlts lrelirretltt'sJtine: iredeagttsentirelv plrlt'. irt irpt'x lrt.rrti1t6 1srlall rrul.r'r.rl<.rotlk.

Jlule. Length rrborrt5 rrrur.; u'ing .i.5 lrrrrr.
Rostrttnt itttd prrlpi dark brown. .\ntelrnlre tla,rk lrlorvrr ; tllgellar scglnents or-ul, s'it1
vertit'ils tirrrt cxceeti tlrc segrrrcntsin lerrgth. Hearl lrrorvnish-grcv.
l)trrttotttttt brou'tt. 1'ellol' olt sirles; pretergites vcllol-. llesonotal praes<.utrrrngr(.\.,
rvitlt fottr lrt'ou'ttstrilles ; lrst'ttrlostrtrrnrllbveae rerldish-brorvl ; llgsterior sr.lsritr:sof 'otrrrrr
Ittrrn-nislt-grcr'.tltt' pleurotergite irllrugltlr- tiglrt vtrlkrlr, Itlerrrir pirle .r'ellorv,i1t'lrrtlipg tlc
tltlrsttlllt'ttritlIttetttbrittte; ren' litilrt to sr:arr,t'lvt'r'irlcrrt nroxl re<l<lishirreirson ventr*lirltellistt'rttttttr
iutd ventral sterrtopk'rrritt'.Ilaltcres n't'irklvinfust,rrtc'rl,
cspc<'iallvtlre klobs.
Legs rvith tltt'coxlte lrale vellou'. Irtore rlr less rtrlrlerrertlt lrases: tro<.hiurtersyelftrn.:
li'tttora 1'ellou'.the tips t'atlrcr lrroadlv and conslricrrnuslvbrrlu'nislr-blu<'k,
the :rrrrotrlt
sttlxrtltralon :tll legs rrttd involving lbottt one-tenth of the segnrtnt; tibiue rrrrtlllrrsitursi
llrou'ltish-r'cllo*-, the tills narrorvly rlirrker : outer tarsal st'grrrentslrrorvnish-blugk. \\'inp
lritlt lr rveak grc'r'islttitrge, r-erv rcstrictedll- antl inr<rns;ri<'rrorrslv
lltttcrnr.tl rvith browp, ns
lirllou's: .\ srrrall r):lrro\r'stigltrrrlitr(1rl: origin o{'}ls: r'ortl irnd .lr-t'rr: till o{'r,t,in lir;
vt:ins lrrorvlt. \'t'rrrrtion : ^Sctrurrk'ratt'lv long. 5c, t'nrling lrbout ollJrositeonc-lbrrrth tlrt: long
1i's.S'c,just llelble tlrt'origirt ot'/i.s ; <r'll Il , r'erv srnrrll, r't in .f1.,short irn<lstriright, oblitlue :vcin Ro abotrt tltrt'e titncs lts lottg, stt'otrglvtrpt'trrve<I,
lllrtittrlarll':rt till; 1rcti6le6f ca.llIl.,
Irottt lir-c ttl six tittresits lottg as veitt ll,, ; r'cll 2nd II , alrorrtont'-hlrll'lorrg,.'1'
tlrrrnits 1>etiolg;
lr-r'r{ about trriec its length bclbrc lbrk of^11.
.\bd<urrinaltergites l)ron'n, stt'r'uitcsclear light yellorr' : h1'llollvgiurrrchiellv inlus<.ltecl.
-\lalc hvpollvgitttn n'ith the apical lobe ol'lxrsistvlc t.longrrtcarr<lrelativclr- slender,gbotrt
trvo-thirclsits loltg its the reltririrtrlt't'ofstvle, thc till obtrrse. Tlrree rlististvlt's,tlrt'orrtr.r
otrt' t'ottsllit'ttottslvlrranehe<lat itllt'x. its orrter arrrr a lorrg r.urr-ed spine, tlrc inner itrllr rr
short flattenerl lllitde, stttfaet' of stetrt u'ith verv allrrnrlant long ptrle settrlirc; interrlcdiatt'
stvlt'stronglv cttrverl. its rrllit'al tlrirtl bltrckened,rrarrorted to an:rr,rrtr,blur:keutrlspi1t,.
belbre thc itllt'x u'itlt it fert' sltort st'attert'rl s<.irlrrousp<-rirrts; irrnel rlististvle rr tri{le l<llgt'r..
trt apex <lilnte<lirtto it u't'ak irrcgttlar bluekeneclhea<|,lrrovided rvith tu'o or thrce strolg
setae,tvith a t'ovvof itbottt six or seven srnlllcr llale setre dou'n the str.rrr. ,\erlt'ngrrsrelltir-elrstout. ent,irelr-Pale, at apcs llent into u srnirll r.urved point or erook.

Holotylte. g. \\reenan, Natal. l)ccernber, lgZO (II. P. 'l'lrcm,assct):
Ilritislr lluseutn through Imperial Bureau of Entonrolog)', lg27-_gl.
Grtnomyia(Idiocera)th,ornassetiana
is namcrl in honour of thc collector.
Dr. H. l). Thontasset. The s1x'ciesis cr)tirelv distinct fronr tlrc other.
lt'gional lllembet's so far described that ltave tlrc rvings lnore or lesstlistirrcth' patterne<l.inchrcling G. (1.) bislulata Alexa,nclcr. ,\s is usual
in tlris gcrlus alxl nlan\' others in the farrrilr'. thr. rnost <listilrt:tive
s1x'cificclra,rat'tersare to bc tirund in thc. l)lale lrvltopvgiunr.
Gnophomyiasilindicolasp. n.
Iletttl, tltttrirx ittttI itbtlottten lllack : antr.rrnale trnifbrrrrly blackencrd : halterr* 1-t'llow ;legs rvitlt itll t'oxire lrltck. l'etttortr orAnge, the tips broadlv lrlaek ; tibiae bllu,k, rvith ir r.opspicuotts 1'elkru' rittg ltt ot' <'lose to llase ; rvings rvith t strong brownish tingc, thc bosc
brottllv yellrl*' ; A nitrr'()1\'.inr'onrllletc lttore u'hitenc<l lrunrl belilrc <'orrl ; no nrir(.rotrir.lrirr
i n < . e l l so l ' r v i n g .
tr'emult. Length about l0 rnrn. ; rving tJ.S rnnr.
Itostrtutt arrd llllpi black. ,\tttennle lrlaek throrrghorrt ; lLrgelhrr segmt'nts long-ovul,

24

Prrrf. ('. P. .\lexander o?t,eilotic Tipulidae

Ilead tlull black : rrnterior vertex brorrd. nlole than trviee the width of the t'xllosetl llortirlttof eye.
Thorax uliforrnly blaek. Halteres u'ith stent brou'nish-1'ellos'.ktrob clear light 1'ellorv.
Legs rvith all coxae blaek : trochanters orange, tlte posterior pair broltnish-vellort' ; fetilont
ornlge, the tips broadl.v-and abruptll' black, on tbre legs ilreluding trbottt the tlistal t$'ofifths, on posterior fenlora nezrrlv the outer fourth ; tibine black. rvith a t'otrsllicttousvellorv
ring at or iprmediately beyon<l base. distinet on all legs, on lbre pair including abottt otrt'fourth the length of the segment, on posterior legs somewhat less than one-fifth : tarsi
black. lf ings rvith a strorrg brownish tinge, the broad basc -v-ellow: A narro!\' itt<'otttplett'whitish band before cord. extending fronr vein r? aeross the <tttter entts of eells before eord.
barely reachilg vein lsl ,I: eells C. Sc and l.st -'l dark: no lrriglrtening be1'onttt'ortl:
veils 6ark brown. a little brighter in the lvhite band. <'lenr1'ellon'in the l)rear'('lllar}'ellorv
area. No maerotrichier in eells ot'u'ing. \'enation t F , endirrg ittst lrvontl fork o['-ll.s.Sr',long. nearll'etltral to <.elllst JI": Il" anrl llr+, sttlrcqtutlin lt'ngth. :rlxrttt ottc-lrrtlfRr+, it : c l l l s l : l f , s n r a l l .r e t t a n g u l a r . s h o r t e r t l r a n : u r r ' o f t h e v e i n s l t e v o t r r li t : r r t - c rilt t l l e : l r o t l ( ' third the length of cell lsl JIr.
Abdomen. ineltttling ovillositor. ttltifbrlnll' black.

IIolotypz,?, Chirinda For('st. Southenr Illtodt:sia,altitttrle :t.600{'eet.
No. {315).
I)ecerrrbcr.1935 (Cuthbertson
By m)' k")' i,, the Afriean spccies of Gnophomgia Ostcn Sacken(tg30,ltei. Zoit. Bot.Art'.19 : 356-358).theprc'sentfl)'r'urrsto eouplet:].
incruding Gnophomyia elegans (\\'ierlenrarul) and G. chirhtdensis
diffcring in the utrifortnlrAlexander. Tlrc spe;ies is closestto ele.gans,blackenedantenni,eand in the verv narrow. ineompletewhitelred bantl
beforethe corcl of the wing.