401 ( ). Hydbovatus indianensis sp. nov. 



Form of the preceding. Head and under surface reddish-brown ; thorax 

 piceous with a mediau cross-bar reddish-brown; elytra piceous, each with 

 a brcvad reddisli-brown sub-basal spot, a small sp<it behind middle and the 

 tips niso indistinctly reddish. Thorax and elytra sculptured as in jnistii- 

 latiif!. Length 3 mm. 



Kosciusko County; rare. August ."). A distinctly larger and 

 much darker form than the preceding. 



Y Desjiopaghria Bab. 1841. (Gr., "band -i- point.") 



In this and the next genus the hind coxa; are united firmly to 

 the ventral segments so that the under surface of the body from the 

 front of the metastemum to the hind margin of the third ventral 

 segment consists of one rigid piece. Desniopacliria comprises mi- 

 nute, short, broad species, convex both above and beneath and hav- 

 ing the hind coxse very greatly developed but wnth the coxal cavi- 

 ties much exposed. The genus is represented in the eastern United 

 States by a single small species. 



402 (1262). Desmopachbia convexa Aubg. Spec/. Oen.. YI, 18.38, 479. 

 Rounded, convex. Uniform brownish-red. shining. Elytra finely but 



distinctly punctulate, tajjering to an obtuse apex. Clypeus with a distinct 

 margin. Length 1.7 mm. 



Laporte. Marshall, AVayne and Clarion counties; frequent. Oc- 

 curs beneath grass roots along the margin of water. May 15-Au- 

 gust 15. 



VI. BiDESsrs Sharp. iS'^i. (Tii., "double -i- wet.") 



This genus contains a number of very small oblong-oval de- 

 pressed beetles, usually of a brownish color with paler markings. 

 The thorax has a basal groove or longitudinal fold on each side 

 which is often cuntinued onto the elytra. Five species are known 

 from Indiana. 



KEY TO I.XDIAKA SPECIHS OF BIDESSVS. 



a. Basal griKives of thorax not continued onto elytra; elytra brown, each 

 with two yellow spots. 40.3. flavicolt.is. 



an. Basal grooves of thorax continued onto the elytra. 



6. Elytra distinctly pubescent with yellowish hairs. 404. pi'licasivs. 

 hb. Elytra not or very finely pubescent. 



c. Elytral portion of liasal grniivp distinctly lnnt:er than the thoracic 

 Iiortioii. 405. i acvstris. 



fi: r.iisal u'liMivc aliout eiiually divided between thorax and elytra, or 

 distinctly lonu'cr on the former. 



