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



Head impunctate, the frontal elevations small, the carina 

 acutely raised ; antennfe extending to the middle of the elytra, 

 black, the lower three joints flavous, second and thu^l joints equal, 

 fourth scarcely longer, the terminrd joints gradually thickened ; 

 thorax quite one-half broader than long, the sides nearly straight, 

 the anterior angles obliquely thickened, the basal sulcus deep, not 

 extending beyond the peipendicnlar grooves at the sides, the 

 disc convex, remotely and finely punctured, elytra with the base 

 distinctly raised, punctured in regular and not closely placed 

 rows, distinct to the apex, the last row near the lateral margins 

 more strongly punctured, the last interstice slightly convex; 

 below and the legs nearly black; prosternum broadly elongate, 

 distinctly punctured. 



Hah. Colombia, 



One of the smallest species of the genus, and distinguished 

 from its Colombian congeners by the finely but distinctly 

 punctured thorax. 



Genus Lactic A. 

 a. Elytra blue or green. 



Lactica boliviana, sp. n. 



Ferruginous, the antennfe (the basal three joints excepted), 

 the apex of the tibife, the tarsi, and the abdomen black ; elytra 

 violaceous blue, strongly punctured ; thorax impunctate, the basal 

 sulcus deep ; posterior legs entirely black. 



Length 5 millim. 



Head impunctate, obliquely grooved above the antennfe, carina 

 short, labrum piceous ; eyes very slightly emarginate ; antennae 

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

 three joints fulvous, third and foui'th joints equal, the second one 

 scarcely shorter ; thorax twice as broad as long, rather convex, 

 not narrowed anterioi'ly, the sides straight, the anterior angles 

 oblique, the basal sulcus deep and straight, placed close to the 

 base, the surface impunctate ; scutellum fulvous ; elytra convex, 

 violaceous blue, distinctly punctured in closely approached irregular 

 rows, distinct to the apex ; legs and the bi'east ferruginous, the 

 apex of the four front tibife, the tarsi, the posterior legs entirely, 

 and the abdomen black. 



Hah. Bolivia. 



Closely allied in coloration to L. elega7itula Har., but much 

 larger, without distinct fi'ontal elevations, the third and fourth 

 joints of the antennfe equal ; the head impunctate, and the elytral 

 punctuation distinct to the apex. L. ahdominalis Jac. is much 

 smaller and has fulvous posterior legs. 



Lactica lobata, sp. n. 



Oblong-ovate, ferruginous, apical joints of the antennae black ; 

 thorax impunctate, the basal svilcus rather deep, basal margin 



