202 MR. MARTIN JACOBY ON NEW SPECIES [Mar. 4, 



OrEPIDODERA (OhALCOIDES ?) ERICHSONI, sp. n. 



Greenish-seneous, above metallic greenish- cupreous, antennae 

 flavous ; thorax convex, finely and closely punctured, the basal 

 sulcus indistinct, the lateral grooves deep ; elytra with deep 

 basal depression, distinctly and regularly punctate-striate, tibiae 

 more or less fulvous. 



Length 3 millim. 



Of rather broadly ovate and convex shape, the head impunctate, 

 with the exception of a few fine punctures near the eyes, the 

 latter with oblique grooves from the inner margin to the middle 

 of the head, the frontal tubercles obsolete, the carina strongly 

 raised, terminal joint of the palpi acute and slender ; the antennae 

 i-ather long, flavous, the third joint very slightly shorter than 

 the second, the fourth and following joints more elongate, 

 terminal ones slightly thickened ; thorax transversely convex, 

 the sides nearly straight, the anterior angles oblique, slightly 

 thickened, the basal margin sinuate near the scutellum, rather 

 broadly produced at the middle, the basal sulcus feeble at the 

 middle, more deeply impressed at the sides, slightly sinuate, 

 limited laterally by deep, somewhat curved, perpendicular grooves, 

 the disc strongly convex, closely and finely punctured ; scvitellum 

 small, blackish ; elytra scarcely wider at the base than the thorax, 

 the basal portion rather strongly raised, bounded by a transverse 

 depression, the disc convex, subcylindrical, finely and regularly 

 punctate-striate, metallic green with coppery reflections ; below 

 greenish-aeneous, distinctly punctured, the legs piceous, the tibiae 

 obscure fulvous at the base, tarsi blackish, the first joint of the 

 posterior tarsi as long as the following two joints together ; pro- 

 sternum rather broad ; coxal cavities closed. 



nab. Peru. 



The single specimen of this species contained in my collection 

 does not quite agree with any of the genera allied to Crepidodera, 

 on accountof the produced median lobe of the thorax, which gives 

 the latter quite a difierent appearance from that of the other 

 species; this lobe is not pointed bvxt strongly rounded, and the 

 species ought perhaps to be placed in a special genus, but this may 

 be deferred until more similarly structured species turn up. 



Crepidodera magistralis, sp. n. 



Rufous, the antennae (the basal joints excepted) and the tibiae 

 and tarsi black ; thorax transverse, impunctate, with deep basal 

 sulcus; elytra metallic greenish, very closely semi-punctate-striate. 



Length 7 millim. 



Head impunctate, frontal tubercles acute, carina short; antennae 

 extending to about the middle of the elytra, black, the lower 

 three joints fulvous, the third joint shorter than the fourth ; 

 thorax about two-thirds as broad as long, the sides rounded, the 

 anterior angles slightly thickened and produced, the basal sulcus 

 deep and slightly sinuate, bounded at the sides by a perpendicular 



