in the British Museum. 361 



of R x , this tip about equal to Rz +3 ; r on R 2 about, or a 

 little more than, its own length beyond the fork of i? 2 +3 5 

 inner end of cell 1st M 2 broader than the outer end, the 

 basal deflection of M 1+2 long, indistinctly spurred ; cell 

 1st M 2 about equal to vein M 3 beyond it ; cell M x lacking ; 

 basal deflection of Cu x at the fork of M or some distance 

 beyond (one-third the length of cell 1st M 2 in cases) ; forks 

 of Cu very divergent, almost forming a straight angle, Cu 2 

 a very little shorter than the deflection of Cuy. Of the type- 

 specimen but a single wing remains, but of the paratype 

 both wings are preserved. 



Abdomen with the basal two segments orange, the re- 

 maining segments passing into dark brown. 



Hub. Sierra Leone. 



Holotype, <J, Baiima, August 10, 1912 (J. J. Simpson). 



Paratype, sex?, Makump, September 19, 1912 (J. J. 

 Simpson). 



Presented by the Entomological Research Committee, 

 1913. 394 



Type in the collection of the British Museum (Natural 

 History). 



Eriocera leonensis is closely related to E. obscura (Bigot) 

 of Madagascar, but the details of coloration are different. 



Eriocera pusilla, sp. n. 



Size very small (length under 6 mm.) ; general coloration 

 dark brownish black ; antennae of the male greatly elon- 

 gated ; vertex of the male with a conspicuous globular crest ; 

 wings with cell R 2 small, cell M x lacking, cell 1st M 2 closed ; 

 ovipositor with fleshy valves. 



Male. — Length 5*4 mm. ; wing about 7 mm. 



Female. — Length 5 mm. ; wing about 5*7-6 mm. 



Rostrum and palpi dark brown. Antenna; of the male 

 greatly elongated ; when entire probably at least twice the 

 length of the body ; in the unique male, there are but three 

 flagellar segments remaining ; the first scapal segment is 

 pale brown, obscure yellowish beneath ; second segment 

 very small, dark brownish black ; first flagellar segment 

 with a dense, pale, erect pubescence and a single spine near 

 three-fourths the length ; second flagellar segment with 

 widely separated spines arranged in two rows, the more 

 distal of these more or less definitely in pairs ; antennae of 

 female short. Head dark brownish black, the vertex of the 



