1110 



FAMILY I JIT. — CHRYSOMELIDJE. 



2044 (6554). Zeugophoea vabians Crotch, Proc. Phil. Acad. Nat. Sci., 



1873, 23. 



Elongate-oblong, subconvex. Top of head and disk 

 of thorax black, the latter with a yellowish median 

 stripe, which widens on basal half. Elytra piceous, 

 with a large oval or heart-shaped yellowish spot on 

 center of disk ; front of head, antennae and legs dull 

 reddish-yellow. Thorax as in the preceding, the tuber- 

 cles more blunt. Length 3 mm. (Fig. 478.) 



Fig 478^ x 8. Lake and Posey counties; scarce. May ll- 



CAfter Wickhan,') ^ OcCOiS qr foliage of poplar. 



V. Syneta Lac. 1845. (Gr., "sagacious.") 



One species of this genus occurs in the eastern United States, in- 

 cluding Indiana. 



2045 (G557). Syxeta febeegixea Germ.. Nov. Act. Halens. I. 1810, 36. 

 Elongate, subcylindrical. Head, thorax and antennae reddish-yellow ; 



elytra, legs and under surface paler yellow. Antenna? slender, half the 

 length of body; joints 4 to 10 very nearly eqnal in length. 11th longer than 

 10th. Thorax slightly longer than wide; rather broadly angulate and ob- 

 tusely three-toothed at sides; surface coarsely and densely punctate. Ely- 

 tra each with four raised lines or costa? of various degrees of distinctness ; 

 the broad intervals each with 3 to 5 irregular rows of coarse, close-set 

 punctures. Hind tibiae of male slightly broader at tip and with terminal 

 spurs, the inner edge sinuate below the middle. Length 7-8 mm. 



Southern two-thirds of State ; scarce. May 12-June 2. Beaten 

 from the foliage of scrub oak and hazel. 



Tribe III. CRIOCERINI. 



Oblong or elongate beetles of rather small size and graceful 

 form, having the thorax much narrower than elytra, usually 

 strongly constricted near middle ; elytra with punctures in regular 

 rows ; antennae widely distant at base, inserted in front of eyes, 11- 

 jointed and rather stout ; front coxa? conical, prominent and nearly 

 contiguous, the cavities closed behind ; first ventral segment as long 

 as the two following ; tarsal claws simple and approximate at base. 

 Two genera compose the tribe. 



KEY TO GENERA OF CEIOCERINT. 



a. Thorax with a constriction about the middle. VI. Lema. 



aa. Thorax cylindrical, not constricted. Crioceris. 



VI. Lema Fabr. 1798. (NL., meaning unknown.") 



This genus, sufficiently characterized above, is represented in 

 the State by five species.* 



*A synoptical table of most of the species is given by Crotch, Proc. Phil. Acad., 1S73, 24. 



