872 FAMILY XLTII. — PTINID/E. 



hh. Disk of tliorax strongly giblxnis or raised into an olttuse cone, sides 

 nearly slraii^lit and iiarallcl tor more than Iwo-tlnrds their length. 



165S. LINEAKIS. 



(10. First ventral suture bisinuate, broadly curved backward at middle, the 

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



PISILLUS. 



H;r»T (ilL'Tl). II.XDKOBREGMis CARiNATUs Say, Joum. Phil. Acad. Xat. Sci., 

 Ill, 1S23, 187; ibid. II, 120. 

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

 e^iual 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 strife. Leugtli 3.5- 

 0.5 mm. 



Thronglioiit the State; frequent. ]\lay 21— July 21. Occurs on 

 soft maple and beeeli logs in low, niaist woods ; taken also at light. 



1058 (5272). Hadrobregmi%s linearis Lee, Proc. Phil. Acad. Nat. Sci., 

 1865, 232. 

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

 ters given in key. Color blaelvish-brown. Punctures of elytral striiie obso- 

 lete or very indistinct. Length 4.5 mm. 



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

 of an oak. A northern species known fi-om the Hudson Bay Region 

 and near Detroit, Michigan. 



//. piisiUus Fall, reddish-l)r(nvn, disk of thorax strongly swollen 

 and compressed behind, was described from Ohio and Wisconsin. 



Microhregma cmaiyiiKiluni Duft., brown, tliorax not as wide as 

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



Codostethus tiotatvs 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. Tkvi-opitys R(>di. 1S4S. fOr.. "to bore i pine.") 



Antenna^ more or loss serrate, the three outer joints not con- 

 s])icuously 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 

 (»f the two known species occurs in Indiana. 



1G59 (5281). Trypopitys sericeus Say, Journ. Phil. Acad. Nat. Sci., V, 

 1825, 172; ibid. II, 280. 

 Oblong, snbcylindric.'il. Sooty brown, sparsely clothed with sliort brown- 

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

 almost covci'cd in repose. Thorax not (niite ;is wide as elytra, about as 



