428 FAMILY XI. — srArilYLINIDiE. 



Southern half of State, frequent; much less so northward. 

 March 6-October 10. Occurs beneath bark, vegetable debris, etc. 



Group H. (Eulathkobium.) 



This group is represented by one species which is the largest of 

 the genus. 



819 (2511). Lathroeium orande Lee, N. Sp. N. Amer. Col., I, 1S63, 42. 



Robust, parallel. Black, shining, finely pubescent ; antennte and legs 

 dark i-eddisli-brown. Head wider than long, rather finely, not densely punc- 

 tate, its sides rounded into the subtruncate base. Thorax oblong-oval, 

 slightly naiTOAver than head, a little longer than wide ; disk coarsely, deep- 

 ly, rather closely punctured, with a narrow median smooth line. Elytra 

 slightly wider and distinctly longer than thorax, coarsely and densely punc- 

 tate. Abdomen as wide as elytra, finely and rather closely punctate. Sixth 

 ventral of male with a small triangular tooth at apex. Length 10-11 mm. 



Steuben and Kosciusko counties ; rare. June 26-August 13. A 

 member of the boreal fauna. 



Group I. (Lathrobibixa. ) 



Rather small, more or less fusiform species having the head 

 small, its sides rounded into base ; ucek half as wide as head ; thorax 

 rather large, oblong; elytra with the punctures in rows; abdomen 

 minutely and densely punctate. 



The following species have been taken or probably occur in the 

 State : 



KEY TO INDIANA SPECIES OF GROUP I. 



a. Foi-m more convex, less slender; head narrower than thorax.; elytra 

 piceons or dark reddish-brown. 

 6. Fifth ventral finely and densely punctate like the fourth; elytral 

 punctures finer, more close set ; sixth \-eutral of male with a broad 

 triangular notch. vemteam. 



66. Fifth and sixth ventrals less densely punctured; elytral punctures 

 coarser, in more regular imiiressert rows; sixth ventral of male 

 with an acute ti-iangular notch. ,S2(1. collake. 



(Id. Form more slender and depressed; head oipial in width to thorax; ely- 

 tra pale, distinctly Ioniser and wider than thorax. 

 c. E.ves of normal size and pnuuinence, situated at distinctl.\- less than 

 twice their own length from base of head; elytra pale reihlish-yel- 

 low, with a piceous cloud near scutellum. eubida. 



IV. E.yes notably smaller, situated at twice their own length from base: 

 elytra i)ale dull yellow. 821. ambiguum. 



L. vp nival r Lee, 4 mm. in length, was described from Pennsyl- 

 vania, Florida and Kansa.s, and therefore probably occurs in In- 

 diana, 



