AMERICAN APTERA. 407 



broad as long; distal segment scarcely equal to the third in length and 

 ending in a weak claw; thumb rather small. 



Abdomen two-thirds as broad as long, rounded posteriorly. 



Anterior pair of legs almost as long as the body; tarsus swollen, 

 two-thirds as long as tibia; tibia not so long or as broad as antepenulti- 

 mate segment. Second pair of legs about two-thirds as long as the 

 anterior pair; tarsus slightly swollen. The tarsus of leg four is very 

 much swollen, about three-fifths as broad as long and about one-half 

 as long as tibia. Claws situated on short pedicels. 



Length, 1.22 mm.; breadth, 0.80 mm. 



Under dead clover and grass. Collected by J. D. Hood 

 at Urbana, Illinois. Two specimens. 



Rhyncliolophus longipalpus n. sp. 



(Plate XIV., Fig. 9.) 



Body red with dark blotches ; legs and palpi paler than the body. 



Cephalothorax truncate in front, as broad as long; dorsal groove 

 extending beyond the eyes. At the posterior end of the dorsal groove 

 are two long bristles, each about two-fifths as long as the cephalo- 

 thorax. At the anterior end of the dorsal groove is a broad, low tuber- 

 cle from which extend five long, subequal bristles. A single pair of 

 eyes is present, situated on the postero-lateral aspect of the dorso-vertex 

 about an equal distance from the lateral and the posterior margins of 

 the same. Palpi large, longer than the cephalothorax and nearly twice 

 as long as the mandibles ; second segment of palpus twice as long as 

 broad ; third segment about two-thirds as long as the second segment ; 

 fourth segment ending in a single stout claw. Thumb cylindrical, not 

 extending beyond the palpal claw. 



Abdomen truncate posteriorly, broadest at the anterior margin and 

 sparsely clothed with almost straight pectinate bristles. 



Legs very long ; anterior pair about twice as long as the body ; second 

 and third pairs of legs subequal, being about three-fourths as long as 

 the anterior pair; posterior pair of legs equal to the anterior pair. 

 Tarsus of leg one much swollen, one-half as broad as long and almost 

 as long as the tibia; tibia subequal to antepenultimate segment. 

 Tarsus of leg four slightly swollen and about one-half as long as the 

 tibia. Legs two and three also have swollen tarsi. 



Length, 0.38.; breadth, 0.26 mm. 



Under bark of willow. Collected by the writer at Urbana, 

 Illinois. One specimen. One other individual was seen, 

 but I was unable to capture it. 



TRANS. AM. ENT. SOC, XXXV. NOVEMBER, 1909. 



