7zz?31| | i . tr i

Ngteson theTipuidoeof Ecuodor(OrderDipterol
PART VII
fi

By C'harlesP. Alerrndcrr Unlvcnity of Mrrcechucettr, Amhcmt, Mssr'
ctGG.

r

I

In this repo'rtI am continuingthe discussionof speciesof thegenusLimonia Meigen,inaluding tlre typqcalsubgsnusaad Neolimnobia Alprander, thesebehg rpocies58 to 76, inslusive. The remaining
subgenera@hipidia Meigen,DicranomyiaStephens,and Peripheroptera
Schiner)will be treatedin the succeeding
part of theseNotes.
LIMOTIIA Meigen
Iimonia Meigen
AmphinomeMeigen;Nouv. Class. Mouches,p 15, 1800;preocc.
by AmphinomeBruguiere,1792; (nom. nud., no type).
Limonia Morgon;,Illiger's Mag. fur Insektenk.,2: 262, l8O3; (typeLinnobia IrdeigeuSyst. Beschr, l: 116, l8l8;' 'i

Rcv.'Dd,:,

EA. h.

.:

2 (l'-21 Eerr--rAfdl(typc tripunctata:..t ',;

lt!51

FfbfiCiUf).

232
Unomyia Meigen;Syst. Beschr..,l: 135, l8l8;(rype tripunctata
Fabricius).

Ataracta Loew; Bernsteinund Bernsteinfauna,p. 38, 1850;(nom. nud., Do type).
NumantiaBigot;Ann. Soc. Ent. France(3) 2:470, 1854;(typefusca
Meigen).
LimnomyzaRondani;ProdromusDipterologiaeItalicae,1: 185. 1856;(type tripunctataFabricius).
Atypophthalmus
Brunetti;Rec. Indian Mus., 6: 273, lg l 1; (type,umbratade Meijere,as holopticusBrunnetti).
A generaldiscussionof the typical sub-eenus
was provided inan earlierpaperby the writer (Rev. de Entomologia,2l: 169 - 175,1950), which should be consultedfor various points not consideredhere. I am referringthe 14 species
so far discoveredin Ecuadorto thetypical subgenusthoughwith somequestion,as discussed
in the referencecited. The speciesfall in four distinctgroups,as follows:
1 . Thc eisenigroup. Includesbimucronata,hyperphallus,
lachesis,lawlori,lustralis,nracintvrei.
optabilis,pastazicola,and velast e g u i.i
2.

The insularisgroup. Includesaurigenaand grossa.

3.

The repandagroup. Includesrepanda

4.
culata.

The reticulatagroup.

Includespanrpoecilaand subreti-

The immaturestagesof rnembersof the subgenusas known
occurchiefly in decayingwood permeatedwith fungousmycelia. Others
that are placedat leasttentativelyin the subgenusare subaquatic,living
in mossor algaegrowingon the facesof wet wood or cliffs, where thelarvaedwell in silken tubes. Closelyrelatedforms live in organic
carth, while still others are fungicolous. In the vast fauna of Tropical Americait would seemthat still other larval habitatsmight be used
but to this datenothingis known of this particularlyinteresting
subject.

233
Key to the SpecieS
Wings with an abundantreticulatedpattern that includes
narrow crossbarsin the cells.
Wings variosly patternedbut never reticulatelyso.

2.

2
3

Major brown areasat origin of Rs and at one-third thelength of cell R solidly darkened;hypopygium(fig. l4\
with the rostral spinessubequalin length and placed atand near summit of a very long basaltubercle.
subreticulataAlexander
Major areasat origin of Rs and at one-third the length ofcell R interruptedby pale hehind;hypopvgium(fig. I l)
with the rostral spinesmuch longerthan the basaltubercle
pampoecilaAlexander

3 . wings with a conspicuous
darkenedpattern,includingareasat and near the arculus.
Wing pattern less conspicuous,chiefly on outer half, without darkeningsat arculus.

4.

Wings with a broad solidlv darkenedbrown band at andbeyond arculus with further ilreas at and beyond the(fig. 9).
cord; hypopy,eiunr
optabilis(Alexander)
Wings without a solidly darkenedarea on basal fourth.

5

Darkenedr,vingpatternextensive,
includinua nrajorareain
cell R betrveen
thc marksat arculusand originof Rs: Sc verv short,Scl endingshortlybey'ondorigin of Rs, Sc2opposite this origin; hypopygium(fig. 6).
lachesisAlexander
wing paitern lessconspicuous,with no darkeningin cell
R as described;Sc very long, both ScI and Sc2 ending
nearly oppositethe fork of the long Rsl tip of vein R3
bent cephaladat a right angle (fig. 1); hypopygium(fig.
8).
macintyreiAlexander

6.

Wings rvith vein Sc very short, Scl ending just beyond
origin of Rs, the latter very strongly arcuated;a conspi-

4.

234
cr.rousdarkenedscanrat end of vein 2nd A; hypopygium(fig. 13).
repandaAlexander
Wings with vein Sc long to very long, Scl endingbeyond
midlengthof Rs; no darkenedseamon vein 2nd A.
7.

Legs variegatedblack and white, the latter color including
the tip of tibia and the outer tarsal segntents;hypopygiunr(fig' 2)aurigenaAlexander
Legs uniform in coior or virtually so, with no white color

8.

Vein R I deflected stronely caudad so vein R2 is verv
short, in transversealig:nnrentwith the long erect tree tipof Sc2; hypopygium(fig. 4).
grossaAlexander
Vein Rl extendinggenerallyparalelto the anteriorbranchof
Rs, vein R2 not shortened.

9.

Winqs almostunpatternedexceptfor the pale brown stignra.
rvith no darkeningrat origin of Rs: hypopygium(fig. 15)
velasteguiiAlexander
Wings pirtterned,with a darkenedcloud at origin of Rs.

l0

Wings conspicuouslvpatterned,thu'brown ntarks at originof Rs and the stignra precededand followed by whitenedareas, outer radial fieid extensivc!r,infuscated,the outerends of ceils R?. and R3 more vellowedl stigma withnunreroustrichia: hypop.vgium(fig. 7) .
lau,loriAlexander
l'ithout the rvhitenedcostal
Wings lessr'vidcntlvpatternecl.
spots: outer radial cells weakly darkened,their outer ends
not yellowed;stigma slabrous.

ll

t0

t t
l t

Winrs with snrall nrarqinalspots at ends of longitudinalveir*. largeston R4 pius 5; and Rs long, Sc I endingnearly
opnositefour-fifths Rs; veins beyond cell lst M2 short, thedistal sectionof M1 plus 2 subequalto the cell.
lustralis Alexander
Wings without darkenednrarginalspots on the longitudinalveins; Sc and Rs shorter, Sc 1 ending about opposite

235
three-fourthsRs; veins beyondcell lst M2 longer,the distal
sectionof M I plus 2 longer than the cell .

12

1 2 . Stigmal darkeningsmall and inconspicuous;hypopygium(fig. 3) with the aedeagusternrinating in two elongate
fingerlikepoints.
bimucronataAlexander
Stigmacircular in outline,conspicuous;
male frlrpopygium(fi_qs.5, l2) with the apex obtuse.
l3

1 3 . Outer radial cells more uniforrnly darkened;hypopygium(fig. l2) with rnesalapicallobe of gonapophysis
a slender
sinrplepoint: aedeagus
slender.
pastazicolaAlexander
Outer radialcellspale basally,the outerendsconspicuously
darkened; hypopygium (fig. 5) with the mesal apicallobe of gonapophysisverl, short and broad, bimucronate:
iredeagus
very broad.
hyperphallusAlexander
58.

Limonia (Limonia) aurigenaAlexander. 1944.

A b i t a g u aC
. u n i b u n d aa. l t i t u d e| 1 0 0 n r e t e r sA, p r i l 2 . 1 9 4 0( M a c i n t y r e ) ;t y p e s .
Male hvpopvgium(fig. 2\ rvith the tergite,9t, transverse.
theposteriorborder ven, sh'rllowlynotched,the lobescoruespondingly
lorv,with few but lon_u
setae. B:rsistyle.
b. long.,the ventronresal
lobe sessile, rvith long setae. Dorsuldististvle.d. projectinga trifle beyondthe
level of the ventraldististyle,a little expandedbefore thc acutetip.
Ventral dististt,lewith the body oval, with lons setae:rostral prolongation elevated,virtually glabrous.the sen:iorvarea placediust before the sligthly pointed apex;a few scatteredsetae,chiefly on the outer
fourth or fifth the prolongation. Gonapohysis,g, very broad,the mesalapicalloberelativelvshort,its tip a little curvedor deflected.
Aedeagusnarrow, the apical lobe oval. rvith several pale spots or
hvalineareas.
59.

Limonia (Limonia)bimucronataAlexander,1938.

Abitagua,altitude 1200 nreters,August 20, 1937 (Macintyre):
type; altitude 1800 meters,April 15, l94O (Macintyre). Also from.
Bolivia (Cochabanrba)

2_76
Male hypopygium (fig. 3) with the tergite transverse,the posterior border subtruncateto very feebly ernarginate,the surface witha band of strong setaeon posteriorhalf of sclerite,a little removed
border. Basistyle,b, rvith the ventromesallobe large, oval, with alargeventral accessorylobule. Dorsal dististyle,d, a long very slender and nearly straightrod, the slightly enlargedapex curved to theacutetip. \/entral dististylervith the body small, only a little larger
than the coffiplsrted-flattened
rostrum,providedwith abundantsetae;
rt baseof rostrumwith a low tuberclethat bearstrvo setaeof unusual
length,being approxinratelytwo-thirdsto three-fourthsas long as thedorsaldististvlc,one arisingfronr the summitof the tubercle,the otherfroi.'r its base;prolongation,,vithtwo widely separatedpale spines:
outer surflce with abundantlong silkensetae. Gonapophysis,s, withthe nresal-apicallobe bidentateand blackenedat.apex,the lateraltooth
smaller. Aedeaqus,a, broad,at apex producedinto two lone darkened fineerlikelobes.
60.

Limonia (Limonia) grossaAlexander,1938.

A b i t a g u a .a l t i t r r d e1 2 0 0 n r c ' t e r sA. p r i l 2 1 , 1 9 3 7 ( M a c i n t v r e ) l
fv p r ' s .

Male-h),popygium(fig. 4) with the tergitetransversebut long,thc nostcriorborder almost trunceite.rvith scarcely indicated lobes:
setaefew but lons. onlv ahout eight on cither side. Basistyle.b.
short. fhe ventromesal
lobe verr, large. Dorsal dististvle,d. slender,
scabrous. Ventral distisvtlewith the body relatively small. rostralprolonaationshort and deep. thr--sensoryarea proportionatelvlarge.
G o n l p o n h v s i sg., r ' , ! t ht h e n r e s : r l - ' r n i cl oabl c s l e n d e r . A e d e u g t rrsv i t h
the lpical lot'relarge.
6l

Limonia (Limonia) hvperphallusAlexander,1938.

A l r i t i r g u a ,a, l t i t u d e1 2 0 0 n r e t e r sA
. pril51940(Macintyre).

7. lg37 April Z,

Male hypopygiunr(fig. 5) with the tergitetrernsverse,
the broad
Iateral lobes protuberant,providedwith strong setae, the depressed
central region without major setae. Basistyle.b, with the ventromesal lobe larqe, verv broadly attachedto the st_vle. Dorsal dististvle.

237
d, long and slender. Ventral dististylepale, its body oval, the verylarge compressedrostral prolongationwith the usual abundantsilken
setaeand with trvo rostral spines,placed close togetheron face. A
nretatypeshowsthree such spineson one side only, the oppositestyle
being normal. Gonapophysis,g, with the mesal-apicallobe very shortand broad, terminatingin two spines. Aedeagus,a, broad, the apical lobesrelativelyshort, near apex of organ with widely flaring membranousextensions.
62 .

Limonia (Limonia) lachesisAlexander, 1942.

Bafros.altitude2000 rneters,April 28, 1939(Macintyre);rype.
Also known from Peru.
Male hypopygiunr(fig. 6) with the tergite,9t, large,transverse, the posteriorbordc-rwith a snrall mediannotch, the broad laterallobestruncate;setaeon posteriorhalf of platerelativelysparsebut verv
long. Basistyle,b, with the ventromesallobe large, about two-thirds
tlte extentol' the body of the stvle. Dorsaldististyle,d, a strongsclerotizeclrod, at near tu'o-thirdsthe lengtha little widened,thencebent
at a strongangleinto thc very lone straightspinous apex. Ventral
dististylerelativelysmall,its total area lessthan that of the basistyle,due to the deepernargination
betweenthe body and the rostral prolongationof the stvle; body appearingas a stout cylindricallobe, the prolongationflattened,abruptlynarrowedinto a slenderbeak;two rostrals p i n e sp l a c e do n d i s k o f i h c c x p a n d e dp o r t i o n . d i r e c t e do u t w a r d l y .
G o n a p o p h l , s io: s, ,r v i t h t h e n r c s a l - l r p i claolb e s t r i i i g l r tn. a r r o w e di o l l r e
subacutetip Aedeagusstout,the centralpart of apex very low andobtuse.
63 .

Limonia (Limonia) lawlori Alexander.1934.

Mapoto, Rio Fastaza,altitude | 300 rrreters.October l. 1938
(Macintyre). Describedfrom Panama.

Male hypopygiunr(fig. 7) with the tergitetransverse,
the lobes
low with abundantelongatesetae. Basistyle,b, with the ventromesal
lobe very broad-based. Dorsaldististyle,d, long and slender,the stem
gentlysinuous,the apexbent at a right angleinto an acutespine. Ventral dististylenroderatelylarge, its area, including the prolongation,

238
approximately equal to the basistyle;rostral prolongation very compressed-flattened,
the two spineson face of disk, separatedfronr one
anotherby a distancenearlyequalto their own length;a singlevery longseta at baseof prolongation,with an additionalpuncturenear by, indicatingthe probabilityof there being two such modified setae. Gonapophysis,g, rvith the mesal-apicallobe short and small. Aedeagus
very broad, the apex low and obtuse.
64.

Limonia (Limonia) lustralisAlexander, 1938.

The unic;uetype temalewas from Abitagua,altitude 1200 meters, November2 l, 1937 (Macintyre).
65.

Limonia (Limonia) nracintyreiAlexander, 1938.

Abitagua, 1200 meters,April 4 - 7, 1937 (Macintyre);types.
Rio Arajuno, Napo Watershed.altitude 1000 nleters,April 24, l94l
( N 4 a c i n t v r e ) .A l s o f r o n r P e r u .
Male hypopvgiunr(fi.g. 8) with the tergitetransverse,
its posterior border rzcryfeebly'enrarginate,
low,
the lobes correspondingly
cac.hwitlt about a dozen strong setae. Basistyle,b, blackened,theventronresallobe large, rvith an accessorylobule before the apex.
Dorsal dististyle,d, a slendersinuousrod. Ventral dististylewhitened, its total area lessthan that of the basistyle,the body oval, withrelativelvfe\t,but long setue;rostralprolongationcompressed-flattened,r n o d e r a i c lC
l ' e e pa t b l s e . t h e f w o s p i n e sa r i s i n gc l o s et o g e t h e ro n t h e
d i s l <p. l a c e di n t h r -u- s u a lp a t c ho f . i i k e n s e t a e a: t b a s eo f p r o l o n g a t i o n',-ubert;lc
with u roundedth;rtlrearstrvo trnusuallylong setae,eachnearl v a s l o n q a s t h e d o r s a lc l i s t i s t v l e . G o n a p o p h v s i sg , w i t h t h e m e s a l apical lobe a curved snroothblackenedspine. Aedeagusrelatively
narrow,tcrnrinatingin a semicircularcap. the genitaltubescontiguous
or approxir,rated.
Thc venationis shown (fig. 1). The abruptly upturnedandangulatedapex of vein R3 shouldbe noted.
66 .

Limonia (Limonia) optabilis (Alexander, l92l\ .

239
Zumbi, Rio zamora, santiago-zamora,artitude 700 meters,
May 30, l94l (Laddey). originally describedfrom the Napo River,
Peru.
Male hypopygium(fig. 9) rvith the tergiterransverse,
the posterior border very gently emarginate,the lobes lorv, each with about
8 to l0 setae,nearlymarginalin position. Basistyle,b, long, the ventromesallobe low, appressedto the style, provided with very long setae. A singledevelopeddististyle,d, the normal ventral one, smaller
in areathan the basistyle,oval in outline, narrowedinto an acutedecurved point; rostral spines two, virtually contiguous,placed ne:r outerborder of style; two or three strongersetaeon face of style. Dorsal
style lacking, its basal portion preserved,the outer end obsoleteandlying in a deep furrow on face of the style, its position delimited bystrongsetae. Gonapophysis,g, with the mesal-apicallobe pale, Iong
anci straight,narrowed very graduallyto the subcute tip. Aecleagus reiativelynarrow, the genital tubes contiguous,terminatingin a
low tubercle.
A verv similar dististyleis found in Linronia(Lilnonia)velast e g u i iA l e x a n d e(rs e eN a 7 l ) .
67 .

Limonia (Limonia) pampoecila(Alexander, lgZZ) .

f ) i c r a n o n r v i l p a r l p o e c i l aA l e x a n d e r ,p r o c . I . J. s . N a t . M u s . .
60. Art . 25: | - 22. l()?2.

I l a i c r : ;l.' u n s r r r a h u i :t r. l t i t u d e2 ( X ) 0n r e r e r sM
. n y 2 5 l L ) 3 7( M u cintyrc). Describedfrom CostaRica. $Jidelvdistributedin Tropical Arnerica,as far sorrthas southernBrazii.
h,Ialehvpopygiunr(fig. I I ) with the tergite trilnsverse,very
graduallynarrowedoutlvardly,the posteriorborder barely enrar_einate; setaefew, nrarginalin position. Basistyle,b, relativelysmall;ventromesallobe lar-ee. Dorsal dististyle,d, a short curved flattened
blade,constrictedbeyondbase,thencewidenedand very graduallynarrowed to the long apical point. Ventral dististyle large, its area
approximatelytwice that of the basistyle;rostral prolongationstout;
two rostral spinesfrom a common basal tubercle, placed close together, long and straight,approximarely
as long as the prolongation. Go-

240napophysis,g, with nresal-apicallobe pale, long and slender, very
curved. Apex of aedeagus
simple.
6tt.

Linronia (Limonia) pastazicolaAlexander,1938.

Abitagua,altitude 1200 meters,March 23 1937 (Macintyre);
type.
Male hypopygium(fi.g. l2\ with the tergite transverse,the lobes low, with long conspicuoussetae. Basistyle,b, darkened, theventromesal
lobe rounded,with strongsetae. Dorsaldististyl€,?, very
slender,especiallyat near midlength,the long pointedapex bent at a.
pale, the body small, oval, with longright angle. Ventral dististy'lc
setae;rostral prolongationcompressed,
narrowedinto a beak; trvo widely separatedspines,each producedinto a needlelikepoint; a strong
tubercleat base of prolongation,bearingtwo powerful setae,one atg,apex,the other on outer face of tuberclenear base. Gonapophysis,
rvith nrcsal-irpicallobe erect, suddenly narrorved into a blackened
spine. Aedeagusrvith genital ducts united basally,alnrostcontiguous
outrvai'dlv.
69.

Linronia (Limonia) repanda Alexander. 1928.

P l l l a t a n g a a. l t i t u d e4 4 0 0 f e e t . M a r c h 2 6 H . Taic):types.

31, 1922(G.H.

M a l e h y p o p y g i u n(rf i g . l 3 ) w i t h t h e d o r s a ld i s t i s t y l ed, , ? p a l e .
nearly straight rod, the strongly decurved outer end narrorvly blackened. ucule. Ventral dististylelarge and fleshy, its area about- onehalf grcatcr tharnthat of thc basistvle:rostral prolongationshort andtr,,.rshort stotrt rostill spines.placedon outer nlarstout. conlpresscrl;
gin near base. Goniroophysis,g, rvith the rrtesal-apicallobe pale.
gently curved to the acutetip. Aedeagusbilobed at apex. Ninth sternite dist!nct,provided with relativelyfew coarsesetae.
70.

Limonia (Limonia) suhreticulataAlexander, 1943.

A b i t a g u a ,a l t i t u d eI 1 0 0 n r e t e r sJ, u l y 2 , 1 9 4 0( M a c i n t y r e ) t; y p e .
Male hypopygium (fig. l4) with the tergite transverse,the posterior border nearly truncate,with scarcelyindicated lobes; setaeabout

241
nine or ten on either side,more concentrated
toward the midline whichis broadly free from setae. Basistyle,b, with the ventromesallobe
providedwith numeroussetae,lackingon outer face. Dorsaldististyle,d, a relativelysmall stronglycurved rod, narrowedinto a long straightspine. Ventral dististylelarge and fleshy, its area about two andone-half tinresthat of the basistyle;rostral prolongationwith the twospinesborne at and near summit of an unusuallylong basal tubercle
that occupiesalnrostthe entire outer marginof the prolongation;spines
subequal,approximatelyec;ualin lengthto the basaltubercle. Gonapophysis,g, with the mesal-apicallobe long and conspicuous,its apex
narrowed into a curved spinouspoint. Aedeagusrelatively narrow,
its apical lobe very small.
71.

Linronia (Limonia) velasteguiiAlexander, l93tt.

A b i t a g u a .a l t i t u d e 1 2 0 0 m e t e r s .A p r i l 1 2
c i n t y r e ) t; y p e s .

18, 1937 (Ma-Male hypopygium(fig. l5) generallyas in optabilis,differingin slightdetailsonly. The two flies are readilytold by the charactersgiven in the key, particularll,thc unpatternedwingsof the presentfly.
Both specieshave the outer dististyle,d, atrophiedor virtually so, bea singledististyle.
vond the baseso there is essentially
NeolinrnobiaA lexander
N e o l i m n o b i aA l e x a n d e r ;P r o c . L i n n . S o c . N e r " 'S o u t h W a l e s . 5 2 :
6 8 , 1 9 2 7 :( t y p e d i v a S c h i n e r ) .
'fhechief characterfor separatingthe presentgroup from theof Limonia in the local fauna lies in the supernumeother subgenera
rill'\' trossveinin cell R3 of the wings'. The more detailedaccountof
t h c g r o u p p r o v i d e db 1 ,t l r e w r i t e r : ; h o u l db c c r t n s u l t c (' dR e v . d e E n t o m o l o g i a , 2 l : 1 9 3 - 1 9 4 , 1 9 5 0 ) . A s t h e r ei n d i c a t e dt,h e s p e c i e tsh a tcenter about the subgenotypeform a rather compact group, almost
always rvith a reticulatedwing pattern and comntonly rvith darkened
bands on the femora. The two speciesdiscussedbelow as interstitialis Alexanderand orthogoniaAlexanderare more aberrantand areplacedherein solely on the presenceof the supernumerarycrossvein.
In other respectsthey more strongly suggestmenrbersof the repanda

242group in the typicalsubgenus,
previouslyconsidered. Despitethe factthat certainof the speciesof Neolimnobiaarecommonand wide-spread,nothingis known of the immaturestages.
Key to the Species
Wings with a reticulated light to darker brown pattern,involving the cells.
Wings with darkened seamsover cord and on certain otherveins,not involvine the cells.

2.

Legs with fenrora having two or three narrow dark rings
that alternatervith subequalyellow ones.
(Extralimital)
diva (Schiner)
Legs patternedotherwise,the fenrora not clerly ringed as
described.

3 . General colorationof thorax coral red, unpatterned;
wings pale yellow, with a reticulated pale brown patternthat involves all the cells, without well-markedcrossbandsof the ground; femur pale brown the tip narrowly, or, incases,more brownishyellow,rvith a single narrow darker
subterminalring: hypopygiunr(fig. l6)corallina Alexander
General coloration of thorax yellow, patternedwith darkbrown or black; wing pattern darker, leavingtwo more or
lessdistinctcrossbandsof the groundcolor beforethe cord:
fenrurrvlth a s;ubterminal
d:rrkenedrink .
4.

Mesonotalpraescutunr
yellorv,wiil 1q,edark brown intermediate stripes on posterior half: femur greenishyellow,
the outer third yellowed, enclosing{l broad pale grayring, tibiae and tarsi brownish yellorv: rvings with thecells, includingC and along the posteriorborder.
muscosa(Enderlein)
Mesonotalpraescutunrwith three confluent black stripesthat fonn a discal area; femur brownish black. the outer
fourth yellow, enclosinga broad dark brown ring, tibiae
and tarsi brownish black: wings with the dark pattern3

243
heavy,with out narrow crosslinesin the cells,cell C unpatterned;hypopygium(fig. l8).
pugilis Alexander
5.

Wings with Sc longer, ScI ending about opposite onethird to one-fourththe lcngth of Rs; a singlecrossveinincell R3, virtually interstitialwith vein R2; legs uniformlyinterstitialisAlexanderdarkened.
Wings with Sc short, both ScI and Sc2 ending opposite
origin of Rs; two crossveinsin cell R3, one virtually interstitialwith vein R2, the other more distal in position;
legsblack,the femur with apexand a subterminalring narrowly yellow; hypopygiunr(fig . 17)-.
orthogoniaAlexander
72 .

Limonia (Neolimnobia)corallinaAlexander, 1938.

Abitagua, altitude l20O meters, April J ,1937 (Macintyre);

type.
Male hypopygiurn(fig. l6) rvith the tergite,9t, gently enrarginate, the lobes rounded; setae chiefly marginal, with a further small
sroup on the disk. Basistyle, b, with ventromesal lobe relatively snrall. Dorsal dististyle.d, small, broadest at near midlength,stronqlv curved to the obtuse tip. Vcntral dististylevery large andfleshy,in toial erreaapproxillatelvforrr tinies the basistyle:rostral prolongationshort and stout: spinestwo. relativelyslender,the innermost
front a snrallbasaltubercle,the outer spinenot quite apical in position.
Gonapophysis,g, with the mesal-apicallobe long and slender,the apexo b t u s e . A e d e a g u ss l e n d e r ,t h e a p e x s i m p l e .
73.

Limonia (Neolimnobia)interstitialisAlexander, lc)40

Mapoto,Rio Pastaza,altitude1300 nreters,October 1, 1938
( M a c i n t y r e )t ;y p e .
74.

Limonia (Neolimnobia)muscosa(Enderlein,l9l2).

Santa Inez, collected by R. Haensch; type.
Femora greenish yellow, the outer third more yellowed, €tr-244
closinga broad pale grav ring; tibiae and tarsi bright brownishyellow.
75 .

Limonia (Neolimnobia) orthogonia Alexander, 1945.

Abitagua, altitude I 100 meters,March 2 I , 1940 (Macintyre);
type.
Male hypopygium (fig . 17) semicircularin outline, the posterior margin convexly rounded, the border thickenedbut without lobes.
Basistyle,b, with the ventromesallobe moderately large, about onethird the body of the style: a concentrationof strong relatively short
black setaeon face of style below baseof lobe. Dorsal dististvle,d,long and slender,near apex curved into the long acuteterminal spine.
Ventral dististylefleshy, its area about one-third greaterthan that of
the basistyle;rostral prolongationlong and slender,with t'uvolong curved spinesat near midlengthof the outer margin, one spine slightly
more curved than the other; outer face of style before baseof rostrum
with a lorv roundedlobe. Gonapophysis,los, with the mesal-apicalbe only slightly curved,its tip subacute. Aedeagusrelativelyslender,
the apicallobe small and sinrple.
76

Li':ionia (Neolimnobia)prruilisAlexander. 1943

Abitaguir,Mayorga Playa, altitude ll00 meters, April
l94O (Macintvre).

12,

Male hypopvgium(fis. 18) with the tergite transverse,narrowed outwardly, the posterior border with a snrall rounded notch,
the lobeslow and brold with the setaeconcentrated
on their inner or
ntesatlpart; as shallou,dorsalfurrol, tite posterirlrarrnsof which diverge. Basistyle,b, with the ventronresallobe long, cylindrical, basal in position,the setaeon outer two-thirdschiefly at and near theapex. Dorsal dististyle,d, relativelvshort, ver1,s[16p911,
curved onouter third, the apex narrowly obtuse. Ventral dististylevery large
and fleshy,its area nrorethan three times that of the basistyle;rostralprolongationvery short and stout, the two rostral spinesflattened,one
placed near extremeouter end of the prolongation. Gonapophysis,g, with the mesal-apicallobe gently curved,the apex obtuse. Aedeagus relativelylong and slender.

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EXPLANATION OF PLATES
Male hypopygiaof Limonia.
Fig. | . Linronia(Linronia)macintyreiAlexander,1938 venation
Fig. 2. Limonia (Linronia)aurigena,{lexander,1944.
Fig. 3. Lirnonia(Limonia)bimucronata
Alexander,1938.
Fig. 4 . Limonia (Limonia)grossaAlexander,1938.
Fig. 5. Limonia (Limonia)hyperphallus
Alexander,1938.
Fig. 6 . Limonia (Limonia)lachesisAlexander,1942.
Fig. 7 . Limonia (Limonia) levrlori,A,lexander,
1934
Fig. tt. Limonia (Limonia)macintyreiAlexander,1938.
Fig. 9 . I-inronia(Limonia)optabilis(Alexander,I92l) .
Fig. 10. Limonia (Neolimnobia)pugilisAlexander,1943; venation.
Fig. I l . Lirnonia (Linronia)pampoecila(Alexander,1922).
Fig. 12. Limonia (Limonia)pastazicola
Alexander,1938.
Fig. l3 . Limonia (Limonia)repandaAlexander,1928.
Fig. l4 . [.imonia (Limonia) subreticulata
Alexander,1943.
Fig . l5 . Limonia (Limonia) velasteguiiAlexander,1938.
corallinaAlexander,1938.
Fig. 16. Limonia(Neolimnobia)
Fig. 17. Limonia (Neolimnobia)orthogoniaAlexander, 1945
pugilisAlexander,1943.
Fig. I tl . Limonia(Neolimnobia)(Symbols:b, basistyle;d, dististyles;g, gonapophysis:t,rergite).

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