674 



FA MILY XXXI. — BYR RHID7E . 



narrow, black, slightly elevated lines and a double row of small grayish 

 spots arranged crosswise, just behind the middle. Length 4.5-5 mm. 



Crawford County; rare. July 25. 



IV. Limnichus Latr. (Gr., "a pool or marsh + love. ") 



Here belong nearly a score of very small species having the la- 

 brum distinct; antenna? inserted at the sides of the front; head 

 strongly retracted, the eyes, labrum and mandibles concealed in 

 repose. They are found along the borders of streams and lakes, 

 where they burrow in the ground and emerge when water is thrown 

 on the banks. 



KEY TO INDIANA SPECIES OF LIMNICHUS. 



a. Body beneath densely and coarsely punctured; blackish-bronzed, densely 

 clothed with yellowish pubescence. 1292. punctate s. 



aa. Body beneath finely, in part sparsely punctured. 



6. Under surface shining; above black, shining, very sparsely clothed 

 with grayish pubescence. 1293. nitidulus. 



&7>. Under surface opaque; above dark brown to piceous, rather densely 

 clothed with pale brown or yellowish pubescence. 1294. ovatus. 



1292 (3901). Limnichus punctatus Lee, Proc. Phil. Acad. Nat. Sci., VII, 



1854, 116. 



Oval, convex. Blackish-bronzed, densely covered with golden gray pu- 

 bescence. Thorax more than twice as wide as long, sides feebly and evenly 

 curved ; surface, as well as that of elytra, coarsely and densely punctate ; 

 median groove fine, distinct. Prosternum coarsely punctate, and with a 

 wide and deep longitudinal groove. Abdomen coarsely and densely punc- 

 tured. Length 1.8-2 mm. 



Throughout the State; frequent. Hibernates. May 5-Decem- 

 ber 7. In October I once found a number of this species sunning 

 themselves on the vertical cliffs of sandstone along the Ohio River 

 at Cannelton, Perry County. 



1293 (3907). Limnichus nitidulus Lee, loc. cit., p. 117. 



Oval, narrowed before and behind. Black, shining, very sparsely clothed 

 with yellowish pubescence. Thorax sparsely and finely punctate, median 

 groove short but distinct; scutellum one-third longer than wide at base, 

 highly polished. Elytra sparsely and feebly punctured, the punctures on 

 side and near suture semi-obsolete. Prosternum sparsely punctate, median 

 groove distinct except on apical fourth. Abdomen finely and rather sparsely 

 punctate. Length 1.7 mm. 



Shores of Bass Lake, Starke County; frequent locally; also in 

 Webster collection from Indiana, May 18-August 20. Known 

 heretofore only from Georgia. 



