TTTE SnORT-WIN(iEi) SOAVKMJRK ItKKTTjKS. 483 



as elytra, more than twice as wide as long, base and apex truncate; sides 

 rounded, widely depressed; margins with a small blunt tooth in front of 

 middle and another one-fourth from base; disk coarsely and rugosely punc- 

 tate and with a deep entire median groove. Elytra more than twice as 

 long as thorax, densely, coarsely and rugosely punctate. Abdomen finely 

 and rather closely punctate. Length 2.3-2.7 mm. 



Crawford County; rare. May '26. Occurs in fungi. 



Protinus atomarius Erichs., black or brownish-black, antennas 

 dull yellow, length 1-1.3 mm., has been recorded from near Cin- 

 cinnati and Detroit. 



Subfamily X. PIESTINAE. 



Elongate, slender, parallel species, resembling Cucujids in gen- 

 eral appearance and, like them, living beneath bark. They have 

 the antennae inserted under the sides of the front, straight, with 

 the outer joints slightly thickened; thoracic, spiracles covered; pro- 

 sternum wholly of a horn-like texture; front coxa3 globular. The 

 North American species of this subfamily and the next are treated 



by 



LeConte.In Trans. Amer. Ent. Soc., VI, 1877, 249-252. 

 Fauvel.In Bull. Soc. Linne., II, 1878, 167-188. 

 The following genera of the subfamily are probably represented 

 in the State : 



KEY TO INDIANA GENERA OF PIESTINJE. 



a. Abdomen not margined. 



6. Tarsi 5-joiuted ; front coxa? separated. LXXXVII. LISPINUS. 



&&. Tarsi 3-jointed ; front coxa? contiguous. LXXXVIII. GLYPTOMA. 

 oa. Abdomen margined; tarsi 5-jointed ; front coxa? contiguous. 

 c. Front tibia? not spinose. 



(/. Abdomen widely margined. TKIGA. 



dd. Abdomen very finely margined. ELEUSIS. 



cc. Front tibiae with spinules ; body much flattened; front impressed. 



horned in male. SIAGONIUM. 



LXXXVII. LTSPINUS Erichs. 1840. (Gr.. "clean.") 



Very slender species having the head directed for- 

 ward; antennas not longer than head and thorax; 

 mandibles small, not toothed ; thorax subquadrate ; 

 elytra truncate. (Fig. 171.) One species has been 

 taken and another may occur in the State. 



KEY TO INDIANA SPECIES OF LISPINUS. 



a. Black or piceous, shining ; legs reddish-brown ; front not 



impressed ; length 4.3-4.5 mm. LINEARIS."'" FigTl7l."'Lispinus 



angustatus Erichs. X 



aa. Chestnut brown; trout with two shallow impressions; 7. A Madagascar spe- 

 length 2.5 mm. 932. EXIGUUS. S (After Erich ' 



