HILAKA. 97 



first and second joints clothed with black hairs ; third conical, rather 

 broad, much longer than the first and the second ; fifth like a spine, 

 less than half the length of the third. Thorax with 5 brown stripes. 

 Stigma small, pale yellowish-brown ; veins brown, tawny towards the 

 base. Halteres tawny. Legs ferruginous, clothed with short black 

 hairs ; femora black, with ferruginous tips ; hind femora thick, beset 

 with black bristles; knees tawny; tips of the tarsi black. Male. 

 Wings very slightly tinged with brown. Hind tibiae and hind tarsi 

 pale yellow. Fern. Wings colourless. 

 Generally distributed. (E. S. I.) 



Genus II. HILARA. 



HlLARA, Mg. zw. iii. 1 (1822); Ct. ; Mq. ; Hal.; Ztt. 

 Eb. ; Mn. ; Mg. Bibio p., Pz. Tacliydromia p., Fb. 



Corpus parvum aut minutum, raro mediae magnitudinis, oblongum, 



subpilosum. Color uiger vel cinerascens, rarissime ferrugineus. 



Oculi in utroque sexu disjunct!. Proboscis crassa, recta, capitis 



longitudine. Palpi recurvi. Antennae 5 -articulate, porrectaB; arti- 



culus tertius subnlatus, supra compresaus, quinto longior; quartus 



minimus ; quintus setiformis, gracilis, brevis. Alarum vena costalis 



furcata ; areola discoidalis venas 3 in marginem interiorem emittens. 



Coxa femoribm breviores. 



Mas. Oculi approximate Abdomen cylindricum ; anus obtusus, crassus, 



appendiculatus. Metatarsi antici saspissime incrassati. 

 Fcem. Oculi inagis remoti. Abdomen oblongum, apice acuminatum. 

 Metatarsi antici simplices. 



Body small, rarely of middle size, oblong, slightly hairy, black or 

 greyish, very rarely ferruginous. Head small, spheroidal. Eyes 

 parted. Ocelli 3, on the crown. Proboscis straight, perpendicular, 

 thick, about as long as the head. Labrum semicircular, clavate, cleft 

 at the tip, as long as the labium. Lingua lanceolate, as long as the 

 labium. MaxillaB flat, obtuse, thin along the edges, half the length 

 of the labium. Palpi formed of one fleshy joint, clavate, curved up- 

 wards, very pilose beneath, as long as the maxillee. Labium long, 

 large, very membranous on the upper surface. Antenna 5 -jointed, 

 porrect, approximate at the base ; first and second joints bristly ; first 

 short, cylindrical, longer than the second; second cyathiform; third 

 subulate, compressed above, more than twice the length of the second, 

 longer than the fifth ; fourth very minute; fifth setiform, slender. 

 Thorax oval, with humeral scapula? ; scutellum small. Wings ciliated, 

 incumbent, parallel ; cubital vein forked, costal vein attenuated around 

 the posterior margin of the wing ; discoidal areolet emitting 3 veins 

 to the interior border. Halteres uncovered. Abdomen with 7 seg- 

 VOL. i. o 



