438 FAMILY XT. ST A P IT YL1 N ID M . 



S39 (2575). P^derus obliteratus Lee, Proc. Arner. Phil. Soc., XVII, 1878, 

 395. 



Elongate, very slender. Head as broad as long, slightly wider than 

 thorax and, like the latter, very finely and sparsely punctate. Thorax 

 elongate-oval, sides feebly curved. Elytra distinctly longer than wide, a 

 fourth wider and slightly longer than thorax. Abdomen as wide as elytra, 

 minutely and sparsely punctate. Male with the sixth ventral cleft nearly 

 to base. Length 4.7-5.2 mm. 



Kosciusko County ; rare. October 26. Occurs along the borders 

 of the larger lakes and the seacoast of the Eastern United States. 



LVII. Sunius Steph. 1831. (Gr.. "to be together.") 



Elongate, very slender species having the labrum short, trun- 

 cate, bidentate; presternum car mate; base of head more or less 

 broadly curved and truncate ; basal joint of hind tarsi much elon- 

 gated, the fourth joint of all the tarsi bilobed beneath. The follow- 

 ing species have been taken or probably occur in the State: 



KEY TO INDIANA SPECIES OF SUNIUS. 



a. Head black or piceous. 



&. Elytra in part, sometimes almost wholly, black. 

 c. Abdomen wholly dark ; elytra pale at apex. 

 d. Elytra distinctly longer than thorax; head more densely punc- 

 tured beneath. cinctus. 

 dd. Elytra equal to or shorter than thorax ; head less densely punc- 

 tured beneath. S40. linearis. 

 cc. Abdomen reddish-yellow, usually black at tip; elytra subequal in 

 length and width to thorax, with a large dark spot on outer side 

 behind the middle. 841. binotatus. 

 bl>. Elytra wholly pale, small, equal to or shorter than thorax; body 

 wholly pale except the head and last two segments. brevipennis. 

 aa. Head and entire body except the last two segments pale; elytra dis- 

 tinctly longer than thorax. 842. discopunctatus. 



S-. cinctus Say, 3.5-4.5 mm. in length, occurs from New^ York to 

 Iowa. It is usually listed as prolixus Erichs., but Say's name has 

 priority. 



840 ( ). Sunius linearis Erichs., Gen. Spec. Staph., 1840, 639. 



Elongate, parallel. Black or piceous, subnpaque; legs, antenna? and 

 apical third of elytra pale yellow. Head as wide as long, slightly wider 

 than thorax, its surface, as well as that of the latter, coarsely and densely 

 punctured, the punctures elongate. Thorax oval, as wide as long, sides 

 feebly curved, base slightly narrower than apex. Elytra a little wider, 

 about as long and more coarsely punctate than thorax. Abdomen at base 

 slightly narrower than elytra, gradually and feebly widening toward apex, 

 finely and densely punctate. Length 4.4 mm. 



