TFTK SHORT-WINCKn SrAVENGEU BKKTLKS. 413 



TDf) (244:^). Stkni's fx^vk-ohnis Ericlis.. Gen. Spec. Staph.. 1840, T.''..".. 



Kl(m.si:i((>. rather slender. Black, shinins;. sparse- 

 ly <l(itlu'(l Willi fine gray hairs. Head nearly twice 

 as wide as long, surface hetweeii the eyes fecltly 

 (•(iiicave. finely, closely and d(>ei»ly i»unctate. with 

 a groove each side of a slightly convex ridge. \u- 

 teiuuT? long and slender, third joint two-thirds longer 

 tlian fourth. Thorax widest in front of middle, 

 slightly longer than wide, closely, rather coarsely 

 and deeply jiunctate. Elytra distinctly longer than 

 the width at hase. ininctures round, rather small 

 and deep, separated hy more than twice their width. 

 Abdomen narrower than elytra, the first four seg- 

 ments equal in width, finely, closely and evenly 

 punctate. Length 4.6-4.8 mm. (Fig. 161.) Fig. 161. (Original.) 



Throii^liont the State; common. March 13-November 28. First 

 <lescribed by Say under the name 8. gcmculalus, which name was 

 preoccupied. 



*796 (2444). Stenus annul.\ris Erichs.. Gen. Sp. Staph.. 1840, 735. 



Elongate, robust, subcylindrical. Black, strongly shining, sparsely clothed 

 with grayish pubescence. Head small, much less than twice as wide as 

 long, surface between the eyes nearly flat, coarsely and irregularly punc- 

 tate, convex at middle. Antennje longer than the width of head, piceous- 

 brown. the club darker, third joint two-thirds longer than fourth. Thorax 

 about as wide as long, widest just in fi'ont of middle, coarsely and irregu- 

 larly punctate, with several small smooth spaces at middle. Elytra at l»ase 

 slightly wider than head, a little longer than thorax, punctured as in 

 ffavicornis. Abdomen at base slightly narrower than elytra, thence feebly 

 tapering to apex, finely, closely and evenly punctate. Length 5-5.5 ram. 



Lake. Kosciusko. Marion and Vigo counties; scarce. January' 

 7-Junp 25. Hibernates beneath logs and rubbish. 



797 (2451). Stenus canadensis Casey. Rev. Sten.. 1884, 175. 



Elongate, rather robust. Black, shining, sparsely and finely pubescent. 

 Head tsvice as wide as long ; surface between the eyes feebly convex, finely, 

 evenly and densely punctate. Antennre as long as width of head, reddish- 

 brown, the club darker; third joint one-half longer than fourth. Thorax 

 widest distinctly behind the middle, slightly longer than wide; rather 

 coarsely, densely and somewhat unevenly punctate. Elytra at base equal 

 in width to head, one-third longer than thorax; punctures round, deep, 

 evenly distributed, separated by about their own width. Abdomen as wide 

 at base as elytra, thence gradually and fcM'hly tajtering. r.-ither coarsc'ly. 

 densely and evenly punctate. Length 4.7 n mm. 



Starke and Kosciusko countie.s; scarce. May lO-June 25. 

 Taken by beating hm herbs on borders of marshes. Known from 

 Ontario and northern Illinois. 



