52 Mr. G. C. Champion's Revision of the Mexican 



42. Discodon nigropiceum, n. sp. 



Moderately elongate, widened posteriorly, finely cinereo-pubes- 

 cent, the head and prothorax shining, the elytra dull; nigro- 

 piceous, the sides of the head in front and the base of the mandibles 

 flavous. Eyes small. Antennae very long, somewhat widened, 

 and subserrate in ^J, shorter and tapering in $. Prothorax (cJ) 

 subquadrate, the margins with a deeply-cut angular notch at the 

 middle and parallel thence to the rectangular hind angles; ($) 

 strongly transverse, semicircular, wider than the base of the elytra, 

 the margins broadly explanate and reflexed. Elytra moderately 

 long, at the base in (^ much wider than, in 9 not quite so broad as, 

 the prothorax, feebly explanate laterally in (J, broadly so in $, 

 roughly punctate and faintly costulate. Inner claw of anterior 

 tarsi lobed at base, and outer claw of the other tarsi cleft (the 

 outer section of the claw shorter than the irmer), in (^. 



Length (excl. head) 5|-7J, breadth 2tV-4 mm. {<^ $.) 



Hab. Mexico, Ventanas in Durango {Edge). 



One pair, the female Lampyriform and very different 

 from the male, but almost certainly belonging to the same 

 species. Much less elongate than D. funereum, the head 

 and prothorax smoother and shining, the pubescence finer 

 and not black, the elytra of the male less parallel and 

 that of the female dilated (much as in D. amplipenne), 

 the sides of the prothorax of the female broadly reflexed. 

 The elytra of the latter have been flattened in some way 

 and appear broader than they really are. 



43. Discodon divisum, n. sp. (Plate III, fig. 2, ^.) 



Moderately elongate, shining, finely pubescent; testaceous or 

 flavo-testaceous, the basal half of the head, the eyes, tli,e antennae 

 (except the basal joint wholly or in part), a large elongate patch at 

 the apex of each elytron (sometimes extending over nearly the apical 

 half), tlie sterna, abdomen (the margins excepted), and legs in part 

 or almost entirely (the base of the anterior femora excepted) black. 

 Eyes large and prominent in cj, smaller in $. Antennae long and 

 subserrate in ^, shorter and slender in $. Prothorax {^) trans- 

 verse, the sides notched at the basal third, rounded anteriorly, and 

 parallel from the notch to the base ; ($) broader and with a shallower 

 lateral notch, the hind angles obtuse. Elytra moderately long, 

 wider than the prothorax, subparallel in (J, slightly explanate from 

 a little below the shoulder in $. Inner claw of anterior tarsi broadly 

 lobed, and outer claw of the other tarsi cleft, in cj. , 



