306 COLEOPTERA OF NORTH AMERICA. 



Tribe XII.— AGAI.I.ISSIIVI. 



A tribe composed of two genera which are remarkable for 

 liaving the epiplource strongly sinuated near the humeri. Head 

 small, front short, vertical iu Zagymnus, quadrate, oblique in 

 Agallissus; eyes finely granulated, deeply emarginate; antennal 

 tubercles not elevated, antennae slender, shorter than the body iu 

 both sexes, finely punctulate, and sericeous, 11th joiut feebly 

 appendiculate ; mandibles small, stout, acute, gente moderately 

 short; mentum transverse, of the usual form, entirely corneous; 

 palpi short, equal, not dilated. Front coxce small, not prominent, 

 cavities rounded, open behind; middle coxal cavities angulated 

 externally, mesosternum suddenly declivous in front. Epimera 

 of metathorax very wide in front, gradually narrowed behind; 

 ventral segments slightly decreasing in length ; legs short, slender, 

 thighs not clavate, spurs snuill, 1st joint of hind tarsi but little 

 longer than the 2d. 



The prothorax is rounded on the sides, not transverse, the 

 elytra are wider at base than the widest part of the prothorax, and 

 the humeri are rather prominent, as in many Lepturidfe. The 

 scutellum is obtusely rounded behind, the mesonotum is smooth 

 and polished, with a large, very fine stridulating plate. Flying 

 hairs of moderate length are seen over the general surface of the 

 body, and on the legs. 



Two species occur in our fauna, AgaJlisms grains (Crypto- 

 pleura grata Bald.) from Texas and Northern Mexico; shining 

 black, sparsely punctured, with the elytra narrowed behind, trun- 

 cate and finely serrate at tip, ornamented with yellow spots, of 

 which the basal pair are elongate: and Zagymnus c-hrinus from 

 Florida, opaque black, very coarsely and densely punctured ; 

 prothorax red, with faintly indicated dorsal smooth spots; elytra* 

 parallel on the sides, rounded at tip, with a round basal spot, and 

 two broad transverse bands bright scarlet. Length 13 ram. 



This seems the .nearest approach made by the genuine Ceram- 

 bycidge to the Rhagium group of Lejituridfe. It is, however, 

 quite an isolated form, without special affinities in any direction. 



him ; it IS quite obvious in all the specimens examined, though in Eu. 

 pkipes the two parts of the eye are connected, as in Tetropium, hy a line 

 of corneous material, without lenses ; even this line is wanting in Eu. 

 pint, m that the eye hecomes as completely divided as in Tetraopes. 



