248 Natural History Bulletin. 



Abdomen proportionately more broadly margined than in T. 

 longipalpus, segments subequal, the basal ones just percep- 

 tibly longer, the fourth equal to or very slightly longer than 

 its neighbors and one-fourth as long as wide. Legs propor- 

 tionately longer than in T. longifalfus. 



Habitat. Found between the Ohio River and the Great 

 Lakes. Pennsylvania. New York. 



T. testaceus, Casey. Convex, impunctate, brown or 

 paler, pubescence fine, sparse, erect. Length 1.5 mm. Plate 

 VII., Fig. 28. 



Head from the frontal tubercles to the base slightly longer 

 than wide. Eyes prominent, finely facetted, tempora equal 

 in length to the eyes, convergent, nearly straight, not 

 prominent; occiput high, convex, obliquely declivous forwards 

 towards the impression behind the frontal tubercle; sides 

 convergent from the eyes to these tubercles. Between the 

 frontal tubercles and the eye the lateral margin is expanded 

 into a minute, sharp, horizontal tubercle overhanging the 

 lateral declivity, and close behind this is a minute puncture. 

 Antennce as in T. lono-ipalpus. Palpi with the second joint 

 longest, a securiform pedunculated club. Third joint half as 

 long as the second, exteriorly straight, interiorly arcuate, 

 widest in the middle, half as wide as long,. Fourth joint one- 

 half longer, securiform with a terminal seta. Prothorax 

 widest at middle where it is arcuate, nearly straight toward 

 the neck and base. Disk more convex than in T. longipalpus, 

 near the base is an oblong median fovea and on each side 

 between the median and lateral foveae is a small puncture. 

 Elytra very convex, as wide across the shoulders as the pro- 

 thorax and two-thirds wider at tip. Sides divergent, slightly 

 arcuate, disk impunctate, discal line abruptly ending at middle, 

 sutural interval convex. Abdomen broadly margined the seg- 

 ments subequal in length the basal one-sixth as long as wide. 

 Legs, antennai and palpi not paler than the body. 



Habitat. Found in the country around the Great Lakes. 



