184 MR. MARTIX JACOBY OX 2^EW SPECIES [MaT. 4, 



the elytra, black, the lower three joints flavous, basal joint 

 elongate, the second and third nearly equal, the latter, however, 

 much thinner, the following joints very elongate, the last three 

 thinner than the preceding joints ; thorax rather more than twice 

 as broad as long, the sides very feebly rounded, the anterior angles 

 not oblique, the disc impunctate with a transverse impression at 

 the sides near the anterior angles, basal sulcus deep and sinuate, 

 closely placed to the basal margin ; elytra convex, with a very 

 shallow depression below the base, extremely minutely and 

 irregularly punctured ; underside and the legs flavous. 



Hah. Mexico. 



Of this species I received two specimens from M. DeyroUe, 

 v/hich had been found in Mexican tobacco. The small size, very 

 slender antennae, the anterior thoracic fovea, and the entirely 

 flavous legs will assist in its recognition. 



Lactica carinata, sp. n. 



Entirely testaceous, of elongate shape ; head with a ti'ansverse 

 ridge ; thorax impunctate, not very transverse, basal sulcus deep 

 and sti'aight ; elytra not pei-ceptibly punctui'ed. 



Length 4-|- millim. 



Head impunctate ; frontal elevations obsolete, replaced by a 

 transverse ridge between the eyes ; the latter very large, occupying 

 the entu''e sides of the head ; clypeus strongly and acutely raised 

 between the antennae ; the latter extending beyond the middle of 

 the elytra, entirely testaceous, the third joint one-half longer 

 than the second, but much shorter than the fourth joint ; thorax 

 scarcely twice as broad as long, slightly nari'owed anterioi'ly, the 

 sides nearly straight, with a narrow reflexed margin, the anteiior 

 angles oblique, but not produced, the basal sulcus and the 

 perpendicular grooves deep, the disc impunctate ; elytra neai-ly 

 parallel, impunctate ; below and the legs coloured like the upper 

 parts, the metatarsus of the posterior legs elongate. 



Hab. Cayenne. 



There will be no difficulty in distinguishing this species fi'om 

 its allies on account of the transverse ridge between the eyes and 

 the unicolorous legs. I know only a single specimen of this 

 species, which is in my collection. 



Lactica impressicollis, sp. n. 



Ovate, fulvous, the antennae (the lower tliree joints excepted) 

 black ; thorax transverse, with an antemedial transverse depression 

 at the sides, the basal sulcus deep and sinviate ; elytra with a 

 shallow depression below the base, impunctate ; legs fulvous. 



Length 4 millim. 



Head deeply punctured near the eyes, the latter large, strongly 

 emarginate, the intra-ocular space raised in two elevations ; 

 clypeus bluntly elevated ; antennae extending beyond the middle 

 of the elytra, black, the lower three joints flavous, the second one- 

 half shorter than the third joint, the others closely pubescent ; 



