BY CHARLES P. ALEXANDER. 95 



Libnotes parvistigma bears a marked resemblance to 

 L. indica (Brunetti) of India, a much smaller fly with dark 

 brown legs, a dark cloud at the origin of the sector and a 

 slightly different venation {Sc. shorter ; basal deflection of 

 Cui close to the fork of M). 



Libnotes jnilckripes, sp.n. 

 Antennae dark brown, the flagellar segments oval, 

 moniliform : fore femora w^ith the tips broadly blackened ; 

 tibiae white w ith a postmedial black ring : tarsi white ; wings 

 grajdsh subhyaline, stigma small, dark brown ; anal angle 

 of the wing lacking, cell 1st M^ open. 



Male — Length 5.3-6 mm. ; wing, 5.7-5.9 mm. 



Mouth parts small, pale brown. Antennae dark brown, 

 the segments oval, strongly moniliform. Head pale yellowish 

 brown. 



Mesonotum pale broAvnish, the prsescutum A^ithout 

 apparent stripes. Plevira dull yellow, sparsely pruinose ; 

 a brown mark on the mesosternum between the fore and 

 middle legs. Halteres elongate, Ijrown, the knobs dark 

 brown. Legs with the coxse pale ; trochanters brown ; 

 femora yellow, the tips of the fore femora broadly blackened 

 and incrassated ; middle femora scarcelj^ enlarged or 

 darkened apically ; hind femora slightly incrassated and 

 infuscated ; tibiae white, immediatelj^ before midlength 

 with a conspicuous l)lack ring : tarsi white, the claws black. 

 Claws long and but slightly curved, simple, the base with 

 about two acute bristles ; the last tarsal segment with a 

 few slender setigerous tubercles bearing very long, 

 powerful bristles. 



Wings grayish subhyaline ; stigma small, oval, dark 

 brown ; veins dark brown : wings cuneiformly narrowed at 

 the base, the anal angle lacking. Venation : 8c moderately 

 elongated, Sci ending some distance be^^ond the origin of 

 Rs and not far before its fork ; Sco far from the tip of Sci, 

 slightly beyond or even jDroximad of the origin of Rs, Sci 

 usually being longer than Rs : Rs almost straight, about 

 in alignment with i?4-f 5 ; coll 1st M.2 open by the atrophy 

 of the outer deflection of M -^ ; basal deflection of Cui at the 

 fork of M ; 2,nd Anal vein sinvious. 



Abdomen pale brown ; hj-popygium small. 



