1914] Tipulidde from Fiji Islands. 241 



Tribe Eriopterini. 

 Gonomyia (Leiponeura) fijiensis, sp. n. 



Thorax bro',\-n, lateral margin of the praescutum j-ellow; \\-ings with 

 the costal margin yellow, the membrane light browTi and hj'aline diver- 

 sified, stigma lacking. 



Male, length, 4.9 mm. Female, length, 4.8-5.1 mm.; wing, 4.3- 

 4.4 mm. 



Male: Rostrum and pal[)i dark brown. Antenn;c light suli)hur 

 j-ellow, the flagellar segments a little paler. The head bright sulphur 

 yellow with three pale browTi marks, a median one on the frontal tubercle 

 and others on the sides of the vertex. 



Pronotum light yellow. Mesonotal praescutum dark clove-brown 

 the lateral margin between the pscudosuturc and the transverse suture 

 yellow, scutum, scutellum amd postnotum dark brown. Plcurrc light 

 yellow, a broad brown lateral stripe, deepest vcntrally fading into the 

 yello\\- of the dorsal pleurites above, extending from the ventral surface 

 of the cer\-ical sclerites through the halteres to the posterior portion of 

 the mesonotal postnotum ; the area between this stripe and the praescu- 

 tum is light yellow suffused with brown near this stripe: stemites dark 

 brown. Halteres light sulphur-yellow. Legs, fore coxai light sulphur- 

 yellow except the extreme tip which is dark brown; trochanters light 

 brown; remaining coxse dark bro\\Ti on the basal half, paler brown 

 apically and on the trochanters; remainder of the legs broken off and 

 confused in the \-ials with the legs of several other species, but they are 

 probably uniform dark brown. Wings with the costa and the subcosta 

 conspicuously bright sulphur-yellow, remaining veins bro\sai; wing 

 suffused with brown and variegated in places with hj-ahne, as in cell Ri 

 which completely lacks a stigma, in cell R, 1st M2 and elsewhere. Vena- 

 tion as in figure 3. 



Abdominal tergites browTi, broadly edged ■nath yellow on the caudo- 

 lateral margins, the brown always continuing to the caudal margin as a 

 narrow median line except in the 8th tergite where the lateral and 

 caudal margin is broadly yellow all around; stemites brown, very nar- 

 rowly edged with paler on the caudal margin; pleurites broadly and 

 conspicuously yellowish. IlN-popygium with the 9th tergite short, broadly 

 concave, yellow. Pleurites rather short, cylindrical, j-ellow, clothed 

 with long pale hairs, bearing at the tip two appendages; the dorsal 

 appendage is entirely fleshy with two anns, the one directed caudad, the 

 other cephalad, the caudal arm densely clothed with abundant pale 

 hairs, the cephalic arm with a chitinized bristle at the tip and about four 

 smaller bristles on either side, subequal in length and evenly spaced. 

 The ventral appendage is a long simple curved hook, very strongly 

 chitinized. The 9th stemite is ven,' high, convex and bears at its tip 

 two strongly chitinized forked appendages that are directed caudad, the 

 outer fork being cylindrical, acute, the inner fork flattened, twisted and 

 directed entad. The penis-guard viewed from above (fig. 9) is narrow 

 at the base, broadening toward the tip, the lateral edges chitinized and 



