90 SILPHID. 
tibiis sat dense setosis, atque externe fortiter spinosis, calcaribus binis, longis, robustis, leviter incurvatis, 
intus armatis ; tarsis longis, sat gracilibus, omnibus 5-articulatis, articulo basali brevi, parvo; antennis 
longis, robustis, rufis, clavis elongatis, valde incrassatis, obscurioribus. Long. corp. 112 lin.=3 millim. 
Body probably subcontractile, elongate, with the head and thorax rather narrow and the elytra inflated; rufous, 
very shining. Head very prominent, large and broad, convex ; mouth large and prominent, with the 
labrum setose and deeply emarginate; eyes very large and very prominent; antenne long and robust, 
rufous, with the club elongate, much incrassated, and dusky. TZhorax obcordate, longer but scarcely 
broader than the head, widest before the middle, very convex, smooth, and very shining ; sides margined 
and rounded; basal margin slightly rounded and overlapping the shoulders of the elytra; basal angles 
rounded. Scutellum small, triangular, pale. Elytra shorter but much broader than the head and thorax, 
widest near the middle, somewhat inflated, deeply punctate-striate, with the interstices much elevated, 
smooth, and shining, the shoulders abruptly elevated and polished, and slightly angulated at the outer 
side; furnished with a long yellow erect seta below the shoulders and several shorter sets on the sides ; 
sutural stria deeply impressed ; sides rather broadly margined, with the subhumeral angles obsolete. Legs 
long and rather robust, rufous; tibis densely setose and strongly spinose on the outer side, armed with 
two long, strong, and slightly incurved spurs on the inner side of the apex; tarsi long and rather slender, 
all 5-jointed, with the basal joint short and small. Underparts rufous, setose ; mesosternum very deeply 
punctured ; metasternum ornamented with deep punctures arranged in a medial line, with a semicircular 
row at its anterior extremity, the sides densely clothed with silvery hair. 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
One specimen only: this was captured on the wing in the dense forest. 
I have separated this species from D. sperata, Sharp, on account of their great 
disparity in size (D. sperata being twice as large as the present specimen); and from 
some discrepancies in their respective descriptions—such as the sculpture of the thorax 
and scutellum, and the comparative size of the eighth joint of the antenne, which in 
this species is very distinctly evident, although Dr. Sharp merely suggests its possible 
existence. 
SILPHINA. 
NECROPHORUS. 
Necrophorus, Fabricius, Syst. Ent. p. 71 (1775). 
Body elongate ; abdomen much exposed. Head rather small, much narrowed in front; epistoma corneous. 
Thorax small, the pronotum often deeply sculptured. lytra truncate; epipleural folds very broad. 
Abdomen much exposed, often clothed with hair. Antenne very short, 10-jointed, geniculate, and abruptly 
capitate. Palpi small; apical joint of all cylindrical and obtusely pointed. Zingua small, not broader 
than the labium, deeply hollowed in front. Mawille bilobed ; inner lobe not hooked as in Silpha, but in 
other respects similar. Prosternwm very short ; episterna and epimera rudimentary ; coxal cavities very 
large, contingent, open behind, with a large trochantin. Mesosternum very small ; episterna very large, 
each being larger than the sternum; epimera long and large, reaching to the coxal cavities; coxal 
cavities distant, large, and very oblique. Metasternum rather large, slightly mucronated between the 
posterior coxe, extending to the sides of the body ; episterna long and rather broad, reaching to the coxe ; 
epimera rather large, much dilated towards the apex, and extending beyond the coxe; coxe contingent. 
Venter composed of six segments. Legs large; tibixe strongly spinose; tarsi long, 5-jointed, the anterior 
pair dilated in the male. , 
This well-known genus is numerously represented in the Palearctic and Nearctic 
