000 FAMILY XLIV. BOSTRICTIID^^. 



late. Elytra with small granules arranged in a network of lines, tbe spaces 

 between them smooth, their summits with pale brown hairs. Length 4- 

 4.5 mm. 



Southern half of State; common, itareh 9-Deeember 21. Hi- 

 bernates. Occurs on woody fungi and beneath baric of trees and 

 shrubs ; also at maple sap in spring. 



II. SiNo.xYLON Dufts. 1825. (Gr., "harm + \wod.") 



Cylindrical beetles having the head completely concealed from 

 above by the thorax, which is truncate in front, with the apical half 

 covered with small tubercles; elytra obliquely truncate behind, their 

 surface punctate. One of the elovc^n species occurs in the eastern 

 United States and Indiana. 



1686 (5339). Sinoxylon basilaee Say, .Touni. Phil. Acad. Nat. Sci., Ill, 

 ]R2:!, 121 ; ibid. II, 1S1. 



Cylindrical. Black ; elytra dull red- 

 dish-yellow on basal third. Antennte 

 10-jolnted; last two .loints of maxillary 

 palpi equal. Thorax very convex, slop- 

 ing downward on apical half, angles 

 rounded ; surface densely punctate, and 

 with numerous small tubercles in front. 

 Elytra bent downward nearly at right 

 Kg. 349. a, larva; 6, pupa; c, beetle. angles On apical fourth, with three tu- 



(After iiey.) bercles on each side of the declivity, the 



latter coarsely punctured. Length o.."-i! mm. (Fig. 349.) 



Payette, Lawrence and Posey counties; scarce. ^May 23-August 

 2:i Occurs beneath the bark of hickory, to the wood of which it is 

 said to be very destructive. 



III. BosTRiCHHs Geoff, J 764. (Gr., " hooked + hair.") 

 Elongate, .subcylindrical species, having the joints of the anten- 

 nal club short, subglobose; hind angles of the thorax acute and 

 prominent. Three of the five known sjiecies have been taken in the 

 State. 



KKV TO INDIANA SI'KCIICS OF EOSTRICHUS. 



II. Thorax with two hooked proces,«cs in front. 



h. Elytra ^^•ith two cost;e. the surface clothed with patches of small ap- 

 pressed scales. i,.q- 



7 , T^, . . , l<>Si. BICORNIS. 



66. Elytra with one short basal costa. the surface clothed with hairs 

 which are unevenly disposed in clusters. mss armiger 



aa. Thorax in front simply truneat,^: pubesrcn.-e of ,.1vlra in spots irregu- 

 larly arnmncd; elytra withcmt traces of ridses. 



1689, TRUNCATICOIXIS. 



