204 DESCRIPTIONS OP NEW SPECIES. 



One specimen from Florida, given me by Dr. E. Brendel ; 

 another in the collection of Mr. Ulke is entirely black. I have 

 mentioned, on p. 321 of the Classification, some of the structural 

 differences between this and Agallissus yratus (Hald.), which 

 entitle them to rank as distinct genera ; and which may be briefly 

 summed up as follows : in Agallissus Dolman, front quadrate 

 oblique, prothorax rounded on the sides ; elytra gradually nar- 

 rowed behind, broadly truncate, and serrate at tip, with the sutural 

 spine quite prominent; body finely punctured above, smooth be- 

 neath : in Zagymnus, front short, vertical, prothorax longer than 

 wide, feebly rounded on the sides ; elytra parallel, not narrowed 

 behind, rounded at tip, with the sutural spine small, body very 

 coarsely punctured above, moderately punctured beneath. 



The narrow epipleurse are in this tribe suddenly and strongly 

 sinuate near the base, a singular character, which attracted my 

 attention before I was acquainted with the description of Dalman, 

 and induced me to place the only species known to me as a dis- 

 tinct primary group of the subfamily Cerambycidas. 



NECYDALIS LINN. 



529. N cavipeiinis. Elongatus, nigro- vel rufo-piceus, pube longa 

 sericea flava dense vestitus, prothorace latitudine longiore, antice pos- 

 ticeque profunde constricto, lateribus bisinuatis medio obtuse tubercu- 

 latis, disco parce puuctato, linea dorsali profunda utrinque abbreviata ; 

 elytris testaceis base apiceque fuseis, alutaceis, vix punctatis, planis, 

 apice subito elevatis et tumidis, margine lateral! paulo elevato ; pedi- 

 bus ssepe ferrugineis, antennis crassiusculis, artioulo 4tocontiguis sesqui 

 breviore. Long. 18 22 mm. 



San Francisco, collected by Mr. J. Behrens. Of the same form 

 as N. Isevicollis, but easily known by the antennae being stouter, 

 with the 4th joint comparatively shorter ; by the long and dense 

 pubescence; by the prothorax (when the pubescence is abraded) 

 being sparsely punctured, and by the elytra being impressed nearer 

 the apex, and more suddenly concave. The color varies ; one 

 specimen is black, with exception of the disk of the elytra, and 

 the peduncle of the thighs ; in another the antennae, legs, and 

 elytra are ferruginous, with a dusky cloud on the latter. 



L.EPTAL.IA LEC. 



This genus is established on Anoplodera macilenta Mann. It 

 is allied to Encyclops, having nearly the same form of head, con- 



