362 A Preliminary Monograph of the 



40 T. indi§^ens n. sp. — Very slender, linear, dark castaneous; ab- 

 domen piceous; legs, oral organs, and antennas flavate; pubescence 

 very short, fine, and dense; integuments subalutaceous. Head as wide 

 as the prothorax, rather convex, minutely and very densely punctate; 

 prominences small and strong; eyes very small, feebly convex, scarcely 

 at all i^rominent; tempora distinctly longer, broadly rounded, and 

 equally prominent; antennae slightly robust and rather strongly capitate, 

 much longer than the head and prothorax; outer joints strongly trans- 

 verse; second joint slightly shorter than the next two combined, fourth 

 transverse. Prothorax about one-fifth wider than long; sides feebly 

 convergent from apex to ^base, broadly and distinctly arcuate; base 

 feebly arcuate, slightly narrower tlian the apex: the latter transversely 

 truncate; apical angles nearly right, not in the least rounded; basal 

 slightly rounded; disk with the feeblest possible trace of impressions, 

 minutely and very densely punctate, the punctures separated by nearly 

 their own widths. Elytra rather distinctly wider and about two-fifths 

 longer than the prothorax, very slightly longer than wide, scarcely per- 

 ceptibly impressed near the suture and only toward base; finely and 

 densely punctate, the punctures slightly larger than those of the pro- 

 notum and separated by nearly twice the distance. Abdomen long and 

 parallel, slightly narrower than the elytra; sides straight; border mode- 

 Tate, shallow; surface finely reticulate, minutely and densely punctate. 

 Ziegs very slender. Length 1.5-1.7 mm. 



Khode Island (Newport 10). 



I found a small colony of this gregarious species on the under 

 side of a sfcone, imbedded in the damp bottom of a partially dry 

 ditch, in April. Its motion is very slow. 



As in many species of this genus, especially the smaller and 

 more slender, the antennae are distinctly perfoliate. 



41 T. g^raphicu§ n. sp. — Very slender, linear, moderately convex, 

 piceous; elytra slightly rufous; apical margin of the last two segments 

 paler; legs dark rufo-testaceous; antennas fuscous, paler at base and 

 apex; pubescence short, rather coarse, moderately dense; integuments 

 dull, the elytra rather shining. Head slightly narrower than the pro- 

 "thorax, feebly convex, strongly granulose, rather coarsely, very feebly, 

 and somewhat densely punctate; prominences rather large; eyes mode- 

 rate, feebly convex, coarsely faceted; facets strongly convex; tempora 



^bout three-fourths as long, broadly rounded, as prominent as the eye; 

 antennae rather slender, very feebly incrassate, slightly longer than the 

 head and prothorax; joints two to four uniformly and very rapidly de- 

 creasing, the fourth slightly longer than wide and one-half as long as the 

 ■second, tenth as wide as long. Prothorax very slightly wider than 

 long, widest at anterior two-fifths; sides rather strongly rounded and 



