ALDRICH AND DARLINGTON. 85 



Lierin latens Aldricb. 



Brownish-black, the head, knees, venter and tip of abdomen reddish; two 

 vibrissfe on each side. 



Length 4.8 mm. ; of wing 5 mm. ^ 



Front saffron-yellow ; occiput, a narrow stripe including the fronto-orbital 

 bristles, and a broader area including the vertical triangle, black ; first two 

 antenna! joints reddish-yellow, third joint black, arista long, only microscopically 

 pubescent; cheeks yellow, aliout three-fourths the width of the eye; two strong 

 vibrissse on each side, the front one somewhat the longer. 



Thorax black, dorsum rather densely pubescent; scutellum black, bare except 

 the ordinary four bristles, which are rather unusually long; mesopleura black, 

 bare; sternopleura with a row of four or five unequal bristles on the upper edge, 

 pubescent below. 



Abdomen black ; the venter and the posterior border of each segment and all 

 the fifth segment reddish-yellow in the female; hypopygium of the male yellow, 

 of medium size. 



Wings grayish, almost hyaline, unspotted ; veins brown ; spines of the costa 

 rather small and inconspicuous. 



Coxse and femora black, hairy, the latter stout ; trochanters and knees red ; 

 tibiae usually with considerable red or reddish-yellow color, especially near the 

 middle; tarsi almost uniformly brown. 



Three males and three females. Aldrich (cotypes) : Porter's 

 Cave, Indiana, July 14th. Milwaukee Public Museum: Horseshoe 

 Cave, Door County, Wisconsin, July 13th. Melander : Austin, 

 Texas, January 20th. 



See note by Blatchley under CEcothea fenestralis. 



Lieria cineraria Loew. 



Length of body 6.2 mm. ; of wing 7.7 mm. 



Ash-gray; a comb of about nine strong, blunt bristles on the hind femora of 

 the male. 



Head yellowish; occiput gray, the gray portion extending forward on the 

 edges so as to include the fronto-orbital bristles, and in the middle so as to 

 include the vertical triangle; front from saffron-yellow above to lemon-yellow 

 below, rather densely pubescent; eyes round, about twice the width of the 

 cheeks; antennae brown, first two joints yellowish-brown; arista long, nearly 

 bare; vibrissse long and rather stout. 



Thorax ash-gray; dorsum pubescent, the small hairs arising from distinct 

 brown dots, the bristles arising from larger brown spots; upper surface of the 

 scutellum gray, but yellowish on the margins, bare except the ordinary four 

 bristles; mesopleuraj bare except three or four hairs on the lower anterior cor- 

 ner, just above the front coxa; sternopleurae with one strong bristle and four or 

 five smaller hairs on the upper edge, besides numerous hairs on the lower part. 



Abdomen gray, hypopygium of the male yellow, medium sized ; in the female 

 the last two segments are reddish-yellow and the ventral side of the abdomen is 

 reddish-brown. 



TRANS. AM. ENT. SOC. XXXIV. MARCH. 1908. 



