TTFE LEAF BEETLES. 



1223 



22&4 (7059). PsTLLiODES coNVExiOB Lec, Pac. R. R. Rep., 1857, 69. 



Oblong-oval, moderately con- 

 vex. PI ceo us, shining and dis- 

 tinctly bronzed ; antennae piceous, 

 three basal joints paler; legs as 

 in punctulata. Thorax nearly 

 twice as wide at base as long, 

 surfaie finely punctate at middle, 

 a little more coarsely at sides. 

 Elytra not wider at base than 

 thorax; punctures rather coarse, 

 well separated, becoming gradu- 

 ally finer toward apex ; intervals 

 flat, the inner three with numer- 

 ous fine punctures, the outer ones 

 each with but a single row. 

 Length 2-2.5 mm. (Fig. 544.) 



Xorthern half of State; 

 frequent. Not taken south of 

 Clarion County. April 25- 

 October 23. Occurs on 

 grasses and sedges in low, 

 moist meadows. 



Fig. 544. X 22. (After Forbef.) 



Tribe XI. HISPIXI. 



Small or medium-sized wedge-shaped (elongate in genus ^ie- 

 nispa) species having the elj'tra often broadly and squarely trun- 

 cate behind, with rows of deep punctures, and sometimes raised 

 lines or costse. The front of head is prominent, the mouth being 

 confined to the under surface, and the head is never covered by the 

 thorax, which is emarginate or truncate in front. The antennae are 

 short, straight, compact and close together at base. The lar^'a? are 

 mostly leaf-miners, feeding between the upper and lower surfaces 

 of leaves, and have the head much narrower than the body and the 

 first three segments wider than those behind. Those that feed on 

 the surface of leaves cover themselves with a shelter or protection 

 of their own excrement. The follo\^-ing paper deals particularly 

 with the genera comprising the tribe. 



jJorn. — " ^Miscellaneous Notes and Short Studies of North Amer- 

 ican Coleoptera," in Trans. Amer. Entom. Soc, X, 1883, 

 200-303. 



Five of the six genera recognized by Horn are probably repre- 

 sented in' the State. 



