1915J 



Kellogg and Nakayama — A New Tricliodecies 



35 



more hairs across the segment near the posterior margin. The legs have the single 

 tarsal segment unusually long and distinct, and the tibiae bear numerous short but 

 distinct and sharp spine-hairs. 



The abdomen is large and thick, symmetrically elliptical with broad ends, and 

 covered sparsely with minute pointed spine-hairs. There is also a transverse series 

 of longer but fine spine- 

 hairs across the dorsal 

 surface of each segment 

 just in front of the pos- 

 terior margin of the seg- 

 ment. There are numer- 

 ous longer hairs on the 

 lateral margins of each 

 segment, and a brush of 

 longish hairs on the pos- 

 terior margin of the last 

 segment. At each side of 

 the next to last segment 

 there is achitinized back- 

 ward-projecting, pointed 

 process, slightly curved 

 and angulated in the 

 middle, with the con- 

 vexity on the outside. 

 The ground color of the 

 whole abdomen is pale 

 yellowish-white, of more 

 golden color along the 

 lateral margins, and with 

 a series of seven browTiish 

 median blotches, largest 

 and darkest on segments 

 7 and 8. The next to the 

 last segment is nearly 

 covered by two pale 

 translucent, brownish 

 blotches, partly fusing 

 on their inner faces. 



Male: Body, length 

 1.68 mm., width .61mm., 

 head, length .34 mm., 



width .47 mm.; thus much smaller than the female, and with abdomen with sides 

 more nearly parallel, converging posteriorly. The head is a little different in shape, 

 the anterior, or clypeal, portion not extending so far in front of the antennae and 

 more flatly rounded. The genitalia show distinctly through the body-wall, 

 although they are not heavy or strongly chitinized. The parameres are long, 

 narrow and pointed. 





Fig. 1. Trichodectes hermsi n. sp.; A, female; B, last 

 antennal segment of female, showing sense pits; C, 

 small chitinized sclerite at middle of occipital margin 

 of head of male; D, same of female; E, outline of head 

 of male; F, hind leg of female; G, part of abdominal 

 body-wall showing scaly covering; H, tip of abdomen 

 of male, showing genitalia; I, tarsus and tarsal claw of 

 hind leg of female. 



