830 FAMILY XI;. LAMPYRIDJE. 



1575 (4880). Podabrus rugosulus Lee, Agass. Lake Sup., 1850, 229. 



Elongate, the sides of elytra less broadly dilated than in tricostatus^ 

 Black; front of head and sides of thorax yellow. Head coarsely, thorax 

 less coarsely punctured, the latter narrowed in front of middle, side mar- 

 gins broad, deeply impressed before and behind, dorsal line well marked. 

 Elytra densely rugose. Length 7-8 mm. 



Throughout the State; common. May 31 -July 4. Occurs on 

 the leaves and flowers of various shrubs and herbs. One was noted 

 feeding on a winged plant louse. In one specimen at hand the tho- 

 rax is wholly black. 



1576 (4882). Podabrus basilaris Say, Journ. Phil. Acad. Nat. Sci., Ill, 



1823, 181 ; ibid. IT, 117. 



Elongate, parallel. Blackish or piceous ; front of head and margins of 

 thorax reddish-yellow ; narrow side margins and suture of elytra pale ; an- 

 tennae and legs piceous. Second joint of antenna? shorter than third, the 

 two together scarcely longer than fourth. Thorax with sides rounded, 

 broadly flattened and reflexed ; dorsal line distinct ; disk sparsely punctured. 

 Length 8-13 mm. 



Lake, Kosciusko. Starke and Lawrence counties; rare. May 

 23-June 27. One of the largest species of the genus, which prob- 

 ably occurs sparingly throughout the State. The thorax is much 

 wider in proportion to its length than in modestus. 



1577 (4881). Podabrus frater Lee, Proc. Phil. Acad. Nat. Sci., V, 1851, 



344. 



Slightly larger than rugosulus, which it closely resembles. Head black, 

 the mandibles and a narrow line between the eyes yellowish, coarsely and 

 closely punctate behind the eyes. Thorax quadrate, apex truncate, front 

 angles rounded, the convex portion of disk almost smooth. Length 9- 

 10 mm. 



Steuben. Marshall, Starke and Vigo counties ; scarce. June 6- 

 June 17. Taken by sweeping herbage in low, moist grounds. 



P. diadema Fab., black, front of head and sides of thorax pale, 

 length 9-11 mm., is recorded from the Atlantic region and Lake 

 Superior. 



1578 (4886). Podabrus modestus Say, Journ. Phil. Acad. Nat. Sci., Ill, 



1823, 179 ; ibid. II, 116. 

 Resembles basilaris very closely. Black or dusky black ; front of head, 

 broad margins of thorax and femora in great part yellow; antennae and 

 tibiae dusky. Thorax nearly one-half wider than long, hind angles rec- 

 tangular, front ones rounded; margins reflexed. disk finely and sparsely 

 punctate. Length 9-13 mm. 



