456 WILLIAM G. DIETZ, M.D. 



bicuspid, lateral tubercles large, acute, base l)i-eiiiargiiiate ; scutel 

 small, glabrous. Elytra much and rather suddenly wider at the 

 base than the prothorax, narrowed posteriorly ; pygidium large, 

 nearly perpendicular ; pectoral caual deep, not extending upon the 

 mesosternum, the latter truncate between the middle coxae and en- 

 tering less than one-half into the formation of the middle coxal 

 cavities, side pieces wide, distinctly visible from above; metasternum 

 truncate in front and behind ; second abdominal segment shorter 

 than the two following segments together, prolonged on the sides, 

 third narrowed at its extremities, narrowly attainly the lateral mar- 

 gin ; anterior coxie conical, rather widely separated, middle coxse 

 glabrous, separated about one-half more than the anterior coxse ; 

 posterior coxae widely separated. Legs moderately long, femora not 

 robust, mutic, tibiae slender, tarsi moderate, third joint broadly bi- 

 lobed, fourth joint short, claws armed with a slender tooth, almost 

 as long as the claw itself. 



In the formation of the beak, the presence of post-ocular lobes, 

 completely concealing the eyes in repose, formation of the ventral 

 segments and the bifid claws, this genus strongl}' reverts to Auleuten 

 of the subtribe Cceliodes. 



Two species, well defined by structural differences, occurs in our 

 fauna : 



Larger, ante-coxal ridges distinct, curved, dorsal channel of prothorax entire, a 

 callous elevation each side at the middle. PI. xiv, fig. '.i3h. 



ziniineriiiaiiiii. 



Smaller, ante-coxal ridges obsolete, prosternum very deeply eniarginate, sides of 

 cmargiuation straight; prothorax not uneven, channel interrupted at the 

 middle. PI. xiv, fig. 346. litiiratuw. 



C ziniinertnanni Gyll. PI. xiv, figs. 33, 33a, 336. — Broadly oval, piceous ; 

 antennaj, tibise and tarsi rufous, above variegated with spots of white, or yellow- 

 ish white scales, underside densely scaly, scales large, oval, white. Beak obscurely 

 subcarinate, opake, striate and punctured, thinly pubescent, except at the apex, 

 which is glabrous, especially in the female. Head densely punctured ; occiput, a 

 spot above each eye and at the middle of the front, of white scales; prothorax 

 not much wider than long, sides nearly straight behind, rounded in front, broadly 

 but not deeply constricted at the apex, broadly impressed in front, ai)ical cusps 

 well marked, triangular, lateral tubercles acute, dorsal cliannel distinct, entire, 

 gradually becoming wuh^r from the base to the apical margin, an obtuse callosity 

 each side of channel before the middle ; between this callosity and the lateral 

 tubercles tliere is a deep ol)lique sulcus, surface densely but not coarsely punc- 

 tured, sides and anterior impression densely, dorsal (diannel less densely, clothed 

 with large white scale. Elytra one-third wider at the base than the prothorax, 

 wider than long, iiiimeii rounded, sides feebly rounded and narrowed posterioily. 



