684 



FAMILY XXXIV. — HETEROCERIDrE. 



1302 (3958). Hetekocerus auromicans Kies., Rev. Linn. Ent., V, 1851, 



287. 



Oblong, convex. Piceous, sparsely clothed with golden, short, scale- 

 like, recumbent hairs ; sides and median stripe of thorax pale. Elytra with 

 sides, two sinuous entire bands and short subapical lunule, yellow; femora 

 and tarsi reddish-yellow, tibiae piceous. Elytra parallel, faintly substriate. 

 Labrum of male, transverse, narrowed in front, apex emarginate-truncate. 

 Length 3.5^t.5 mm. (Fig. 256, c.) 



Starke, Fountain and Vigo counties; frequent. April 26- Au- 

 gust 20. Easily known by the pale median stripe of thorax, and 

 the entire stridulating ridge on first ventral segment. 



1303 (3957). Heterocerus ventralis Melsh., Proc. Phil. Acad. Nat. Sci., 



II, 1844, 98. 



Oblong, feebly convex. Piceous, clothed 

 with short, semi-erect yellowish or brownish 

 pubescence ; front angles of thorax yellow ; 

 elytra with three sinuous bands of dull yel- 

 low spots, which are interrupted on the disk 

 and not united at the margin by a pale bor- 

 der ; rarely a basal spot near scutellum ; 

 femora reddish-yellow, piceous at base, tibiae 

 piceous, tarsi pale. Thorax of male slightly 

 wider than elytra, not narrowed in front ; 

 that of female distinctly narrowed in front, 

 not broader than elytra. Elytra parallel in 

 both sexes, faintly substriate. Length 6- 

 6.5 mm. (Fig. 254.) 



Lawrence County; scarce. August 18. Our largest species. 



1304 (3970). Heterocerus undattjs Melsh., Proc. Phil. Acad. Nat. Sci., 



II, 1844, 98. 



Oblong, moderately convex. Piceous or brown ; thorax often with the 

 front angles yellow, or the sides narrowly yellow ; elytra with two sinuate 

 bands more or less interrupted (often united at the margin by an entire 

 pale border), a rounded subapical spot and an apical lunule, yellow; body 

 beneath piceous, the sides of abdomen narrowly yellow. Elytra usually 

 substriate. Length 4^t.5 mm. (Fig. 255, a.) 



Throughout the State ; 

 common. April 6-Oetober 

 21. Resembles the next 

 species very closely, but 

 distinguished by the ab- 

 sence of post meso-coxal 

 lines, and by having the 

 front angles or sides of tho- 

 rax reddish-yellow. Fig. 255. a, H. undatus, female; b, H. coUaris, male; c, H. cdkris, 



small var. (After Horn.) 



Fig. 254. H. ventralis, a, male; b, female, 

 var. (After Horn.) 



