280 Professor Willistou on the 



7. Ceratopogon flavus, n. sp. (PI. IX., figs. 42, wing; 



42a, tarsus.) 



^ . Wings hairy ; the third vein terminates distinctly before 

 the middle of the wing, and is very close to the first vein ; fourth 

 vein with a prefurca, though indistinct ; first joint of the tarsi 

 aboat one-third of the length of the second joint, the fifth a little 

 shorter than the fourth : pulvilli hairy. Face, proboscis, palpi, 

 and antenniB yellowish, the last brownish toward the extremity ; 

 the pluraosity blackish-grey. Thorax yellow, the mesonotum 

 brownish-yellow, opaque, with light-coloured hair. Abdomen 

 slender, in large part brown or blackish, its base and tip yellow ; 

 hair of the venter long. Legs yellow, with long yellow hair ; the 

 tarsi a little infuscated. Wings hyaline beneath the hair. Length 

 2 mm. 



Ten specimens. Sea level, and IGOO feet. 



8. Cerato])ogun longicornis, n. sp. (PI. IX., figs. 43, 



wing ; 43a, antenna.) 



$ . Wings bare ; the third vein iterminates in the costa much 

 beyond the middle of the wing ; two submarginal cells. The 

 posterior branch of the fourth vein arises before the anterior cross- 

 vein ; femora without spines. Antennas sknder, much elongate, 

 if turned back, reaching to near the middle of abdomen, the distal 

 four joints nearly equal in length to all the preceding 

 together. Mesonotum deep shining black throughout ; pleurae 

 lightly pruiuose. Abdomen elongate, shining. Legs black or deep 

 reddish-brown ; femora not^thickened ; metatarsi slender, as long 

 as the three following joints together. Wings nearly hyaline, 

 narrow, with no perceptible anal angle. Length lr,-'2 mm. 



Three specimens. 500 feet. 



P, Ceratupogon iliersite,^, n. sp. (PI. IX., fig. ii, wing.) 



^. Two subcostal cdh ; the third vein terminates beyond 

 the middle of the wing ; wings bare ; prefurca of the fourth 

 vein very short ; first joint of the tarsi elongate, last joint 

 not elongate ; pulvilli hairy. Abdomen black, not shining, 

 elongate, yellow at tip [and on the venter. Thorax black or 

 reddish-brown, the ^mesonotum shining moderately through the 

 sparse yellowish pubescence or pollen. Legs yellow ; the tarsi 

 blackish at tip. AVings hyaline. Antennas brown or blackish, 

 yellowish at base. Palpi and proboscis brown. Length h-'^ mm. 



Eight specimens. Sea level, and 1000 feet. 



