LAMPEOSOMA. 101 



Guatemala, which do not show any difference from the type, except that the thorax is 

 a little more closely punctured. The distinguishing characters of this species are the 

 metallic green upper and underside, the finely punctured head and thorax, and the 

 nearly square rather convex prosternum ; the tarsi are black. 



35. Lamprosoma pediculus. (Tab. V. fig. 24.) 



Lamprosoma pediculus, Lacord. Mon. p. 628 \ 



Hah. Mexico \ La Parada, Oaxaca (Boucard, coll. SalU) ; Guatemala, Chacoj 

 (Champion). 



This small species seems to be rather subject to variation, several specimens being 

 before me which, although evidently belonging to the same species, yet show a good 

 deal of difference in the shape of their body and its punctuation, the latter being espe- 

 cially very strongly marked in one specimen from La Parada, while the type is supposed 

 to have an almost impunctate head and thorax. But this being the case in one instance 

 only, and the specimen having come from the same locality as the others, I should 

 scarcely be justified in describing it as new. The specimens, again, collected by 

 Mr. Champion are smaller, of a deeper reddish purple, but scarcely vary in other 

 respects, and they may be regarded as local varieties. The specimen figured on the 

 Plate is from La Parada. 



36. Lamprosoma salvini. 



Oblong-ovate, convex, black ; above bright metallic green ; head minutely granulate and punctured ; thorax 

 distinctly punctate ; elytra rather strongly punctate-striate ; prosternum subquadrate, flat. 



Length 3 lines. 



Head rather long, extremely finely granulate and punctured; anterior margin of epistome very deeply concave, 

 the lateral angles acutely produced ; the space between the eyes with a rather deep oblong fovea ; jaws 

 and antenna? black, underside of the first and second joints of the latter fulvous ; thorax not more than 

 twice as broad as long, sides moderately deflexed, the median basal lobe rounded, upper surface more 

 distinctly punctured than the head, the punctures distant and, as usually, more deeply impressed towards 

 the base ; elytra convex at their first basal third, thence to the apex rapidly declining, the lateral 

 lobe strongly produced and subangulate ; surface rather deeply and very regularly punctate-striate; 

 underside and legs black, the latter with a slight metallic-greenish hue ; prosternum slightly longer than 

 broad, rugose-punctate. 



Hah. Guatemala, Panzos (Champion). 



Very closely allied to L. speciosum, Lacord., but differing in the following points : 

 the present species is more elongate, less broad, and less regularly convex, the thorax 

 is distinctly longer and more finely punctured, and its median lobe rounded, not acute; 

 the shape of the epistome is also different. Although only a single specimen has 

 been received from Guatemala, the above differences are too marked for it to be con- 

 sidered identical with L. speciosum. 



