Sept., ipis-] Felt: New Asian Gall Midges. 177 



Mycodiplosis simulacri new species. 



The delicate midge described below was reared July i, 1914, from 

 larvcC feeding probably on fungous spores by Prof. A. Rutherford, 

 Royal Botanic Gardens, Peradeniya, Ceylon. 



Male. — Length 1.2 mm. Antennre probably one-half longer than the body, 

 sparsely haired, light reddish brown ; fourteen segments the fifth having the 

 stems subequal, each with a length about one-half greater than its diameter. 

 A coarse whorl of long, stout setae occurs on the globular basal enlargement 

 and the somewhat pyriform distal enlargement, the latter with a length one- 

 fourth greater than its diameter ; circumfiU moderately long, stout. Palpi : 

 first segment short, subquadrate, the second with a length over three times its 

 diameter, the third a little shorter than the second, more slender, the fourth 

 as long as the third and more slender. Body yellowish white, except for the 

 minute yellowish brown mesothoracic sclerites. Halteres whitish transparent. 

 Wings hyaline. Legs a uniform pale straw ; claws stout, strongly curved, 

 the anterior unidentate, the pulvilli rudimentary. Genitalia ; basal clasp seg- 

 ment moderately long, stout ; terminal clasp segment a little longer than the 

 basal clasp segment, swollen basally and slender ; dorsal plate short, deeply 

 and roundly emarginate, the lobes short, obtuse. Other structures indistinct 

 in the preparation. 



Type Cecid. a259i. 



Table for Separation of Males of Diadiplosis : 



a. Basal portion of the stem of the fifth antennal segment with a length 



plainly greater than its diameter. 



b. Stems of the fifth antennal segment plainly unequal, having a length, 



respectively, one-half greater and twice the diameter ; third palpal 



segment with a length twice that of the second ; abdomen dark 



red ; basal clasp segment greatly swollen ; ventral plate broadly 



and roundly emarginate cocci Felt, as 128. 



bb. Stems of the fifth antennal segment nearly equal, each with a length 



greater than its diameter, the abdomen yellowish. 



c. Stems of the fifth antennal segment with a length one-fourth 



greater than their diameter, the circumfiU each with about 



eight loops, the terminal clasp segment reduced, swollen 



basally, the harpes with long setae . . . .coccidivora Felt, 3.2486 



CO. Stems of the fifth antennal segment with a length one-half 



greater than their diameter, the circumfili each with fourteen 



to sixteen loops, the terminal clasp segment long, slender, not 



conspicuously swollen basally, the harpes inconspicuous. 



hirticornis n. sp., a26i8. 

 aa. Basal portion of the stem of the fifth antennal segment with a length 

 equal its diameter or less ; ventral plate roundly emarginate. 



