STUDIESON THE TIPULIDAEOF CHINA (DIPTER.q,)
I

On hro specieeof P$ttiophora fron Habaa bhnd
By CuanLEsP. Ar.,pxnNonn
Massachusetts
State College,Amherst, Massuchusette,

t:1.:r'.

SEPARATE FROMLINGNAN SCIENCE JOUBNAL
1932
Vot,.11, No. 4, NovnuBER,15,1932]
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Ll, 4505

STUDIES ON THE TIPULIDA,E OF cHrNA (DTPTERA)I.

On two speciesof Pselliophora from Hainan Island'

By Cne,nlns p. Ar,nxnuonn

MassaehusettsState College,Amherst, Massach,usetts.

Our knowledge of the crane-flies of China is still very insufficient. The number of genera and speciesrecorded from China isobviously incomplete when compared with the much better knorv'
countries of British India and Japan. However, this deficiency is
being remedied by the capable efforts of a number of native andforeign residents of the country so that in the not distant future
we may expect to have a frame-work upon which to proceed with acritical survey of the Tipulidae of China.
At this time I wish to discuss two species of Pselliopl,ora
Osten Sacken that rvere taken in the island of Hainan by professorlVilliam E. Hoffmann. The beautiful crane-flies of this genus areamong the most conspicuous crane-flies to be found in Eastern
Asia. While ntlmerolls in species,the exact limits of the genlls arestill poorly underst<-rod,
especially from the standpoint of sexual
dimorpirism. Although many new speciesrvill undoubtecllybe cliscovered,it seemsprobable that some of the numerous forms alreadydescribed will, upon further study, prove to be synonyms of stiil
older names in the genus. I am very deeply indebted to my friend,
Professor Hoffmann, for the opportunity to examine the material
discussedhereu'ith.
1.

Pselliophora kershawi Alexander

L923. Psellioplr'ora kershawi Alexander; Proc. Hawaiian Eni.
Soc.,5: 257-258.
one male, one female, from north of Nodoa, August lb, Lgzg
(w. E. Hoffmann). The type was from the How-lik Mts., china.
The present specimens are somewhat smaller than the types.
IlIale.-Length, about 16 mm.; wing, 13 mm. Female.-Length,
about 19 mm.; wing, 14 mm. The details of the male hypopygium
have not been adequately considered. Male hypopygium (fig. 1)
rvith the tergite and sternite fused. Tergite (fig. 2) with thelateral angles produced, blackened,their apices obliquely truncated,
separated from one another by a subquadrate notch. Appendage
of ninth sternite complex, as figured, the dorsally-directed spine

L932

Lingnan Scienee Journal506

acute, blackened. Caudal margin of eighth sternite and ventromedian emargination of the ninth sternite with abundant long yellow hairs.

Fig.2

F ig . 1 . Psellioph,ora kersh.ausi, Alexander; male hypopygium'lateral;
F'ig. 2. The same; male hypopygium, 9th tergite, dorsal;
F i g . 3 . The same; male hypopygium, inner dististyle, lateral.

Fig.4

Fig.5

Fig,r-18,7{Ffg.0

P scl l i o p h o rrt ho.ff nmtnti, sp.n.; m ale hypopygiun, gthtergite, dorsal;
Fig. 5, 6. The same; male hypopygium, viervs of inner dististyle;Fig. ?. The same; male hypopygium' gollapophysis.
F ig . 4 .

(Symbols: d, dististyle; g, gonapophysis; s, sternite; t, tergite)

Pselliophora hoffmanni sP. n.
Antennae (male) very long, the branches similarly long andslender, clothed with conspicuouserect setae; frontal prolongationand front china-white; thorax variegated black and white; apicesof knobs of halteres rvhite; wings whitish, nearly immaculate,there
being a restricted brownish black pattern in basal third of cell C
and in the axillary region; intermediate abdominalsegmentsorangered,'the terminal segmentsblack.
2.

7L, 4

Alenander: Tipulidae of China

Male.-Length,.8 mm.

507

about L0 mm.; wing, 10 mm.; antenna, about

Frontal prolongation of head and the front china-white, theformer darkened laterally, very short, with a short blunt nasus;
palpi brown. Antennae unusually elongate, &s sholvn by themeasurements; flagellar branches unusually long and graceful;scape short and tumid, china-white; succeeding segments darkbrown, paling to yellow at tips, the branches black; flagellar segments two to ten, inclusive, each with two pairs of branches; longest
branches about one-fourth the entire organ, clothed with abundant
erect setae throughout the length; basal pair of branches exceeding
one-half the longest branch; terminal segment about equal in length
to the last pair of branches. Vertex brownish black, the post-genae
and occipital region pale.
Pronotum whitish medially, black laterally. Mesonotal praescutum almost covered by three black stripes, these quite confluent
behind, the pale yellow ground-color restricted to humeral triangles;
scutum black; scutellum and parascutella whitish-testaceous; postnotal mediotergite black. PIeura conspicuously checkered withchina-white and black, the former including the dorso-pleural region,
dorso-cephalicangle of sternopleurite and a conspicuoustransverse
girdle that involves the pteropleurite, anterior meron and the midcoxa; the black areas include most of the sternopleurite, ilre
anepisternllm, pleurotergite, posterior meron and posterior coxa.
Halteres rvith the base of stem and apex of knob rvhite, theintermediate portion infuscated. Legs with the fore ancl middle
coxae and trochatrters lvhite, the posterior coxa and trochanter
black; a single leg (fore) remains; femur black, narrorvly paler
at base; tibiae black, r,vith a broad conspicuouswhite ring at base;tarsi black. Wings rvhitish, rvith a restricted brorvnish black
pattern, the dark color including the basal third of cell C; prearcularregion, excepting in cell c,' axillary angle; stigma; and a seam on
anterior cord; narrow to scarcely apparent dark seams on some of
the longitudinal veins beyond the cord, notably on E**., andMr*r;outer end of cell c and cells sc and cu, somervhat paler
brorvn; veins dark brorvn. Venation: petiole of' cell M, subequal
to or shorter than m.
Abdomen with the basal tergite black, pale basally; tergite twoblack, with a large whitish area on either side at near micllength;
tergite three orange-red, blackened laterally; tergites four and fiveorange-red; sternities two and three black, four and five orange-red;
remainder of abdomen, including hypopygium, black. Male hypopygium with the caudal margin of tergite broadly emarginate,fringed with Iong setae; a small glabrous tooth on either sicleof the508

Lingnan Sci,enceJoumal

L932

median line, separatedfrom one another by a small square notch(fig. 4) . Tergite and sternite fused basally. Dististyle complex
in structure, as shown (fig. 5, 6). Sternite deeply notched, theemargination fringed with abundant black setae. Gonapophyses(fig.i) "pp.rring as polishedblack straight rods, the tips expandecl'
Aedeagusyellow.
Hab. Hainan Island.
Holotape, 3, on trail, Fan Ta Chuen (Hung Mo Tung) to
Poh sha&og,July 3l-August 1, L929 (w. E. Hoffmann).
Type returned to Professor Hoffmann.
Psetliophora hoffmanni is named in honor of the collector, myfriend, ProfessorWitliam E. Hoffmann. The speciesis very different from all describedspeciesin the unusually elongate antennae
and flagellar branchesof the male, in conjunctionwith the peculiar
wing-pattern. In its general features of wing and body coloratiott,
it agrees most nearly with P. immaculipennisBrunetti (Sylhet)'
difrering very evidently in the details of coloration of the body,wings and legs. The wing-pattern is somewhat of the type ofp. ptaglata Edwards (Palawan) but with the markings so reduced
as to be almost immaculate.

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