176 MR. MARTIN JACOBY OX XE>Y SPECIES [Mar. 4, 



clypeiis slightly raised, anterior edge of the labrum black ; eyes 

 oblong, slightly sinuate ; antennae extending to the middle of the 

 elytra, black, the lower tlaree joints more or less flavous below, 

 the third joint smaller than the fourth, all the following joints 

 elongate ; thorax twice as broad as long, the sides rounded, the 

 anterior angles simple, not oblique, basal sulcus deep,_ slightly 

 sinuate, the sui'face flavous, im punctate ; scutellum triangular, 

 fuscous ; elytra extremely closely and rather finely rugosely 

 punctured, not very shining, with an acute ridge from the shoulders 

 to the apex, accompanied by another shortei- ridge below the 

 middle ; below flavous, the lower portion of the tibia? and the 

 tarsi fuscous. 



Hab. Llano Grande, Guatemala. 



I have seen only a single example of this very distinct species, 

 which is in my collection. 



Lactic A bilineata, sp. n. 



Flavous, the antennte black; thorax transverse, impunctate, 

 with deep basal sulcus; elytra metallic blue, microscopically 

 punctured, each with a narrow flavous stieak from the base to 

 below the middle. 



Length 4 mil Km. 



Head with a few deep punctures near the eyes, flavous, the 

 frontal elevations sti'ongly raised ; clypeus flattened, subquadrate, 

 bvit slightly raised between the eyes ; labrum piceous ; eyes 

 very large, distinctly emarginate ; antenna? piceous, the second 

 joint half the length of the third, the other joints wanting ; 

 thorax more than twice as broad as long, very short, the sides 

 straight, the anterior angles oblique, the basal sulcus very deep, 

 placed close to the base and nearly straight, the disc impunctate ; 

 scutellum broad, black; elytra elongate and parallel, metallic 

 dark blue, wdth a few veiy fine punctures at the base, from the 

 middle of the latter proceeds a narrow flavous stripe which extends 

 to below the middle and is much constricted medially, its 

 direction is towards the suture ; below stained with piceous, the 

 legs pale flavous. 



Hah. Peru. 



Easily recognizable on account of its coloration, which is 

 probably variable in regard to the elytral flavous stripes. I possess 

 only a single specimen of this very distinct species. 



b. Elytra icith spots or striped. 



Lactica sEMiNiGRA, sp. n. (Plate XX. fig. 2.) 



Head and thorax flavous, the antennae, the breast, and legs 

 black ; head and thorax, impunctate ; elytra flavous, with a sub- 

 quadrate large black patch from the base to below the middle. 



Length 6 millim. 



Head impunctate, shining, flavous, with a small fovea between 

 the eyes, clypeus strongly raised in shape of a triangular ridge. 



