348 



FAMILY XT. STAPH YLINIDJE. 



G51 (— ). Tachtusa ameeicana Casey, Trans. Acad. Sci. St. Louis. 

 XVI, 1906, 207. 



Slender, convex. Blackish-piceous, shining, sparsely clothed with pros- 

 trate yellowish pubescence ; elytra dark brown, the tips paler ; antennse fus- 

 cous or reddish-brown; legs pale yellow, the femora often darker. An- 

 tennae reaching middle of elytra, the second joint longer than third. Thorax 

 about as long as wide, distinctly wider than head, disk convex (male), 

 feebly flattened along the middle (female), finely and sparsely punctate. 

 Elytra about one-half wider and a third longer than thorax, minutely, 

 sparsely and roughly punctate. Length 2.5-2.8 mm. 



Clark and Posey counties ; scarce. May 6- June 3. 



652 (2043). Tachyusa cavicollis Lee, New Sp. N. Araer. Col., I, 1863, 29. 

 Elongate, very slender, sparsely and finely pubescent. Thorax and ely- 

 tra reddish-brown, the latter with tips paler; head and apical half of ab- 

 domen piceous ; antennae and legs pale yellow, the former fuscous at apex ; 

 base of abdomen reddish-yellow. Thorax slightly wider than long, sides 

 nearly straight; disk finely and sparsely punctate and with a broad deep 

 groove at middle. Elytra a third wider and one-half longer than thorax, 

 finely, sparsely and roughly punctate. Abdomen distinctly narrower at 

 base than middle. Length 2-2.5 mm. 



Lawrence County; rare. August 7. 



XII. Gnypeta Thorns. 1857. (Gr., "to fall on the knees.") 



Rather stout species having the middle coxae well separated, their 

 cavities closed behind ; antennse rather long ; neck two-thirds or more 

 as wide as head; thorax with a short transverse impression before 

 the scutellum; abdomen narrower than elytra, very feebly con- 

 stricted at base. 



KEY TO INDIANA SPECIES OF GNYPETA. 



a. Deep black; thorax widest at apical third; dorsal basal segments of ab- 

 domen coarsely and distinctly punctured. 653. nigeella. 

 cm. Dark reddish-brown to piceous; thorax widest at middle; basal seg- 

 ments of abdomen without punctures. 654. baltifeea. 



653 (2044). Gnypeta nigeella Lee, N. Sp. N. Amer. Col., I, 1863, 29. 

 Deep black throughout, shining, sparsely clothed with fine grayish 



hairs; antennse and legs piceous. Antennse reaching base of thorax, the 

 first three joints equal in length. Thorax slightly wider than head, two- 

 fifths wider than long, sides broadly rounded in front, thence feebly con- 

 verging to base; disk almost without punctures, but with a faint median 

 line and a transverse impression at base. Elytra distinctly wider and one- 

 half longer than, thorax, minutely and densely punctate. Abdomen nar- 

 rower than elytra, parallel to near apex. Length 2.5-3 mm. 



Starke and Lawrence counties; scarce. Probably throughout 

 the State. May 11-August 22. 



