96 SILPHIDZ. 
tudinal costs, the head and thorax small, the elytra long and broad. Head very small, faintly punctured, 
with a deep reniform impression on each side, and both transversely and longitudinally impressed on the 
vertex. Thorax small, red, with a dark blotch on the disc, twice broader than long, widest before the base, 
very shining and minutely punctured, with a deep longitudinal impression on each side at the base, termi- 
nating near the middle in a deep lateral fovea ; disc very uneven, depressed towards the base; sides much 
rounded and flattened, faintly margined ; base trisinuate, with the angles obtuse. Scutellwm large, rather 
deeply punctured, much acuminated at the apex. lytra entire, very large, much broader, and more than 
three times longer than the thorax, widest near the middle, very minutely and very closely punctured, with 
the suture and three longitudinal coste much elevated ; outer costa short, terminating at the callosity, both 
inner coste reaching to the apex, the middle costa less elevated than the others; sides ovally rounded and 
margined ; apex slightly sinuated at the sides in the females, and very sharply pointed in both sexes. Legs 
and antenne rather long and slender, black, with the club of the latter much incrassated. Underparts 
black and shining, with the sides of the thorax and the apical segment of the venter bright red. Long. 
corp. 7-11 lin.=14—22 millim. Lat. 3-5 lin.=6-10 millim. . 
Hab. Mexico, Ciudad in Durango (forrer), Cordova, Orizaba1 (Sallé), Tacambaro, 
Jalapa, Cholula in Puebla (Hoge); Guatemata, Purula (Champion); Nicaragua, Chon- 
tales (Belt, Janson); Costa Rica, Irazu (Rogers) ; Panama, Volcan de Chiriqui 4000 feet 
(Champion).—? Braziu}. 
This conspicuous species may be known by its small red thorax with a central dark 
mark, and by its very large, peculiarly sculptured, and very sharply pointed elytra. It 
varies to a great extent in size, some specimens being two thirds less than others. 
8. analis is a common species throughout Central America. 
4. Silpha lapponica. 
Silpha lapponica, Herbst, Kafer, v. p. 209, t. 52. f. 4°; Lec. Proc. Ac. Phil. 1853, p. 2787; Horn, 
Trans. Am. Ent. Soc. viii. p. 238°. 
Silpha caudata, Say, Journ. Ac. Phil. i. p. 192*; Complete Writings, ii. p. 122. 
Silpha tuberculata, Germ. Ins. Spec. Nov. p. 81°. 
Silpha californica, Mannerh. Bull. Mosc. 1848, 11. p. 253 °. 
Oiceoptoma (Thanatophilus) lapponicum, Kirby, Faun. Bor.-Am. iv. p. 100’. 
Oiceoptoma (Silpha) granigera, Chevr. Col. Mex. Cent. i. fase. 1. no. 1°. 
Depressed, dull black, sparingly covered with fulvous hairs, rugosely tuberculate. Head small, the eyes rather 
prominent. Thorax twice broader than long, widest at the base, closely punctured, and covered with 
large tubercles in rather regular rows; sides rounded and strongly margined ; basal margin trisinuate and 
produced towards the scutellum. Scutellum large, closely punctured, the apex acuminate. Llytra broader 
and more than twice longer than the thorax, widest beyond the middle, closely punctured; with three 
elevated longitudinal costee, of which the outer one is shorter and more elevated than the others, and the 
inner longer than the intermediate, and reaching nearly to the apex ; the interstices ornamented with large 
tubercles at rather regular intervals ; sides depressed and deeply margined, very faintly rounded; sutural 
angles produced in the females. Legs and antenne black, with the club of the latter short and oval. 
Long. corp. 7-8 lin.=14-16 millim. 
Hab. Norra America, Alaska ?, Canada?’, United States 234° 6—M_exico 238, San 
Andres Chalchicomula (Sallé), Las Vigas, Mexico city, Sayula, Jalapa (Hége).— BorEaL 
EvuRopPE }. 
A very widely distributed species throughout the whole of North America, and 
extending southwards to Mexico. 
