^72 



PA MIL Y XLIII. — PT] N 1 DM . 



hh. Disk of thorax strongly gibbons or raised into an obtuse cone, sides 

 nearly straight and parallel for more than two-thirds their length. 



165S. LINEARIS. 



aa. First ventral suture Insinuate, broadly curved backward at middle, the 

 second segment a little longer than fifth ; smaller, not over 2.8 mm. 



PUSILIXS. 



1057 (5271). Hadrobregmus cabinattjs Say, Journ. Phil. Acad. Nat Sci.. 

 III. 1S23. 1S7: ibid. II. 120. 

 Elongate, subcylindrical. Reddish- to piceous-brown. Thorax nearly 

 equal to elytra in width ; sides rounded, convergent : hind angles undefined ; 

 disk slightly swollen, finely granulate-punctate, compressed a little behind 

 the middle and often with a median carina on basal third. Elytra with 

 moderately impressed, strongly and closely punctate stria?. Length 3.5- 

 0.5 mm. 



Throughout the State; f requeue. May 21— July 21. Occurs on 

 soft maple and beech logs in low. moist woods : taken also at light. 



105S (5272). Hadrobregmus linearis Lee. Proc. Phil. Acad. Xat. Sci.. 

 1S05. 232. 



Resembles carinutm, from which it is distinguished mainly by charac- 

 ters given in key. Color blackish-brown. Punctures of elytral stria? obso- 

 lete or very indistinct. Length 1.5 mm. 



Steuben County; rare. June 17. Taken from the split trunk 

 of an oak. A northern species known from the Hudson Bay Region 

 and near Detroit. Michigan. 



H. pusillus Fall, reddish-brown, disk of thorax strongly swollen 

 and compressed behind, was described from Ohio and Wisconsin. 



Microbregma emarginatum Duft.. brown, thorax not as wide as 

 elytra, length 4-5 mm., is known from Michigan. 



Coelostethus not at us Say. dark brown, pubescence of elytra 

 variegated, length 3.2-4 mm., is said to occur from New England 

 to Missouri on old oak branches. 



IX. Trypopitys Redt. 1848. (Gr., "'to bore + pine.") 



Antenna? more or less serrate, the three outer joints not con- 

 spicuously longer than those preceding; sutures of ventral seg- 

 ments obsolete at middle, the median area of abdomen rather 

 densely punctate, the large punctures with an encircling ring. One 

 of the two known species occurs in Indiana. 



1659 (5281). Tevpopitys sericeus Say. Journ. Phil. Acad. Xat. Sci.. V. 

 1825. 172; ibid. II. 280. 

 Oblong, subcylindrical. Sooty brown, sparsely clothed with short brown- 

 ish-yellow recumbent hairs. Head deeply sunk within the thorax, the eyes 

 almcst covered in repose. Thorax not quite as wide as elytra, about as 



