The Craspedosomatidse of North America. Gt 



inner branch large and ver3^ deeply bifid, the divisions pointed 

 and slender. 



Habitat: Bloomington, Indiana, collected by BoUman. A 

 single specimen was found in vial No. 42, of the National Museum 

 collection, along with material of the preceding species. It should 

 be noted that none of the Indiana material which we have ex- 

 amined is the same as that from the East, and that the two species 

 here established are founded on material which Mr. Bollman de- 

 termined as T. lunatum, so that it becomes improbable that the 

 last species is found in Indiana. A comparison will show that if 

 Harger's descriptions and figures cannot be reconciled with our 

 eastern specimens, still less is this probable in the case of the In- 

 diana material. 



The genitalia of this species show an evident approximation to 

 the Z^ygonopus type, for the lateral hooks may be looked upon as 

 homologous with the outer tooth of Z. whitei^ while the inner tooth 

 of that species is replaced by the forcipate process. Our speci- 

 men did not show plumose processes, but was not in proper con- 

 dition to warrant the supposition that they are absent. 



Tricliopetalum flaTidiim (Bollman). 



Craspedosnma flaindum, Bollman: Entomologica Americana. Vol. iv, p. 2 

 (April 1888). 



Plate III, figure 50. 



"Yellowish brown, feet and antennae liohter. Robust, segments not con- 

 stricted, lateral carinse small, and body strongly resembling that of Campodes. 

 Antennse longer than width of body. Ocelli 12-14, distinct, arranged in a tri- 

 angular patch and in 5 or 6 series. Dorsal plates rather smooth, setigerous 

 granules small, setse rather large. Male feet crassate, those of female slender. " 



" Length of body 5.8 mm. ; width .7 mm. 



" Hab.— Okolona. 



" This species strongly resembles a Campodes. In life the individuals are a 

 dusky yellow. This description is based upon a male and female." 



In the National Museum collection is a small yellow female 

 specimen with 26 segments purporting to be the type of this 

 species. Supposing that it is one of the specimens mentioned by 

 Mr. Bollman it is difficult to understand his reiterated statement 

 of its strong resemblance to Cleidogona (Campodes). The 

 size and habit are certainly that of Trichopetalum, although the 

 carinse are somewhat less developed than in the other species 

 known to us. The sides are striate and the dorsal surface areo- 



