1222 FAMILY LIII.— •CHRYSOMBLIDiE. 



denticulate at tip, terminated by a rather long and broad spur 

 which is deeply emarginate at tip ; first joint of tarsi one-third the 

 length of tibiffi; claws appendiculate. 



2262 (7057). Diboua boeeaus Cliev., Guer. Icon. Regne Anim., 1845, 307. 

 Oval, slightly oblong, convex. Piceous bronzed, usually cupreous or 



bluish ; antennae and legs reddish-yellow, hind femora piceous, bronzed. 

 Thorax twice as wide at base as long, apex but little wider than the length, 

 sides curved ; disk closely punctate with fine and coarse punctures inter- 

 mingled. Sides of el.ytra continuous with those of thorax, umbone promi- 

 nent; disk with rows of rather fine, close-set punctures, the third and sixth 

 rows often in part confused; inten'als broad and flat, the second, fourth 

 and sixth with coarser punctures than the others. Length 3 mm. 



Throughout the State; frequent. April 15-June 2. Occurs on 

 plantain (Plantago major L.) in the leaves of which the larvae 

 breed. 



LXXII. PsYLLiODES Latr. 1825. (Gr., "flea -f- like.") 



Head oval, deeply inserted ; front nearly vertical without carina 

 or distinct tubercles ; antenna? 10-jointed, separated at base, joints 

 2, 3 and 4 nearly equal, 5 to 9 gradually slightly shorter, tenth 

 longer, acute at tip. Thorax broader than long, narrowed in front, 

 base broadly curved and with a distinct marginal line ; hind femora 

 much thickened, sulcate beneath for the tibia? ; hind tibise broader 

 toward the apex, ending in a short spur, the tip prolonged beyond 

 the union of the tarsi and Avith a border of short hairs ; hind tarsi 

 slender, first joint more than half the length of tibiee ; claws simple. 

 Two of the four known species have been taken in the State. 



KEY TO INDIANA SPECIES OF PSYUIJODES. 



a. Elytral stria; feebly impressed, the punctures closely placed; last ven- 

 tral segment of male distinctly impressed. 2263. punctitlata. 

 aa. Elytral stria; not impressed, the punctures well separated; last ventral 

 of male convex, not impressed. 2264. convexior. 



2263 (7058). Psylxiodes pdnctulata Melsh., Proe. Phil. Acad Nat Sci 



III, 1847, 166. 

 Elongate-oval, little narrower in front, convex. Piceous or dark bronzed 

 shmmg; antennae with three basal joints pale, the remainder brownish- 

 front and middle femora piceous, the hind ones bronzed ; tibife reddish-yel- 

 low darker at middle. Thorax one-half wider at base than long, obliquely 

 truncate at front angles; disk alutaeeous, rather coarsely but not densely 

 punctate. Elytra not wider at base than thorax, punctures rather coarse; 

 intervals slightly convex, each with a single row of fine punctures. Length 

 2.3-2.7 mm. 



Lake, Starke and Posey counties; scarce. June ' 2-July 21. 

 Said to occur on rhubarb and garden weeds. 



