366 



pointed at the apex; rostral hairs long, pectinate, curved slightly 

 toward the median plane. Palpi large, with four segments; 

 proximal and distal segments each with a curved bristle; pseu- 

 dostigmata small; pseudostigmatic organ as long as the femur 

 of leg I, narrow at the base, clavate, pointed apically. Inter- 

 lamellar hairs twice as long as the pseudostigmatic organ. 



Abdomen almost as broad as long. The progaster curves 

 convexly down to meet the cephalothorax. There are a few 

 short hairs present on the abdomen. Ventral plate large; anal 

 covers approximate to the dorsal margin of the abdomen, and 

 more than twice as large as the genital covers; genital covers 

 situated three times their length in front of the anal covers. 



Legs subequal in length; femur and tarsus of the first pair 

 subequal, genual half as long as the tibia. No long bristles on 

 the first pair of legs; tibia of leg III with a bristle as long as 

 the segment itself. 



Length, 0.50 mm.; breadth, 0.32 mm. 



Collected by the writer at Urbana, 111. A single specimen. 



Liacarus niger, n. sp. (PI. XXXV., Fig. 11.) 



Black; integument thick and very resistant. 



Cephalothorax about half as long as the abdomen. Lam- 

 ellar hairs long, straight, and pectinate, projecting beyond 

 the tip of the rostrum. Rostral hairs curved, stout, and pecti- 

 nate. Pseudostigmatic organ long, clavate, and pectinate. The 

 lamella' are horizontal blades, bifid in front. 



Abdomen oblong, with a few small hairs. Legs of moder- 

 ate length, the anterior pair projecting beyond the tip of 

 the rostrum by one third its length. 



Length, 1.00 mm.; breadth, 0.64 mm. 



In moss. Collected by the writer at Homer. 111. Two 

 specimens. 



Li (tennis nitidus Banks. 



1895. Cepheus nitidus, Banks, Trans. Araer. Ent. Soc, Vol. XXII., p. 10. 



Very dark brown; integument stout, smooth. 



