180 MH, MARTI^T JACOBY ON NEW SPECIES [Mar, 4, 



slightly emarginate, frontal tubercles small and obsolete, labiaim 

 piceous ; antennae extending to the apex of the elytra, black, the 

 basal two joints flavous, stained with piceous above, third and 

 fourth joints equal ; thorax transverse, slightly narrowed ante- 

 riorly, the sides nearly straight, the anterior angles strongly 

 oblique, the surface impunctate, the basal sulcus deep and 

 sinuate ; elytra slightly widened towards the middle, impunctate ; 

 below and the femora flavous, the latter with a short black streak 

 above near the apex, the tibise and tarsi entirely black. 



Hah. Pichinde, Colombia. 



I cannot identify this species, of which three specimens are 

 before me, with any other described Lactica on account of the 

 long antennae, the entirely impunctate upper surface, and the 

 markings of the femora, which are the same in all the specimens. 

 There have been a great many species described of almost similar 

 coloration, of which L. citrina Harold is perhaps the most closely 

 allied, but this species has a fine but distinct punctuation and is 

 without the femoral stripe. 



Lactica semifulva, sp. n. 



Rufous or flavous, the head and thorax black, shining and im- 

 punctate ; elytra not perceptibly punctured ; antennae and legs 

 flavous. 



Length 4 millim. 



Head impunctate, black, shining, the frontal tubercles obsolete, 

 the carina comparatively very broad and convex, clypeus deflexed, 

 labrum pale piceous ; antennae long and slender, entirely fulvous, 

 the third joint slightly shorter than the fourth, this and the 

 following joints nearly equal ; thorax transverse, about one-half 

 broader than long, the sides with a narrow margin, straight, 

 the anterior angles oblique, posterior acute ; the disc impunctate, 

 black, shining, the basal sulcus deep, bounded at the sides by 

 another deep longitudinal groove ; scutellum fulvous ; elytra with 

 a shallow depression below the base, of a bright rufous or pale 

 fulvous colour, entirely impunctate, shining ; the underside and 

 the legs flavous. 



Hob. Espirito Santo, Brazil. 



Of this very distinct species I possess three specimens, two of 

 which have the elytra of much paler colour than the other. 

 L. dichroa Har. seems to be a nearly allied species, but has the 

 antennae, the underside, and the legs black ; this and v. Harold's 

 species are the only members of the genus with which I am 

 acquainted having a black head and thorax and fulvous elytra. 



Lactica flavilabris, sp. n. 



Flavous, the head black ; thorax short, strongly transverse, 

 impunctate ; elytra elongate, parallel and strongly convex, rufous, 

 impunctate. 



Length 6 millim. 



Head black and shining, the eyes extremely large, the inter- 



