278 PHYTOPHAGA. 



longer than the body in the male, third joint double the length of the second, the rest elongate, filiform 

 the three basal joints obscure testaceous below; thorax narrowly transverse, of equal width, testaceous, 

 disk sometimes spotted with piceous ; basilar sulcation deep, sinuate anteriorly ; scutellum testaceous ; 

 elytra shining metallic seneous, nearly parallel ; underside testaceous, finely pubescent. 



Hab. Guatemala, Cerro Zunil, Sinanja, Cubilguitz, Cahabon (Champion). 



This is a very distinct species, on account of the very long antennae and the narrow 

 space dividing the large and plainly reticulate eyes in the male, to a little smaller 

 extent in the female. In the latter the antennae are not so long as in the male, where 

 they extend quite to the end of the elytra. The species seems to vary considerably in 

 size, some of the specimens having also four or five piceous spots on the disk of the 

 thorax, while a single one so marked has the elytra entirely of the same colour ; but 

 the dozen other specimens show no variation in this respect. 



19. Lactica elongata. 



Elongate, parallel, below black ; head, thorax, legs, and antennae testaceous ; elytra dark greenish, finely and 

 closely punctured. 



Length 1| line. 



Base of the head obscure fulvous, with some punctures ; frontal tubercles elongate, obliquely shaped ; carina 

 scarcely raised and indistinct; terminal joint of the maxillary palpi acute; antennae more than half the 

 length of the body, entirely testaceous, fourth joint distinctly longer than the third, the two terminal 

 joints thickened ; thorax narrowly transverse, the sides scarcely rounded, anterior angles obtuse, surface 

 impunctate ; the basilar sulcation deep and sinuate ; scutellum black ; elytra narrow, parallel, closely 

 punctured, the interstices somewhat rugose ; underside of the thorax, part of the breast, and the legs 

 testaceous. 



Hab. Mexico, Ciudad in Durango (Forrer). 



Closely allied to L. antennalis, but differing in the colour of the antennae and the 

 punctuation of the elytra. 



20. Lactica dives. 



Lactica dives, Harold, Coleopt. Hefte, xiv. p. 16 (1875) \ 



Hab. Panama, Pena Blanca, 3000 to 4000 feet (Champion). — Colombia 1 . 



The only difference I can detect between the one specimen obtained by Mr. Champion 

 and a typical insect from the Steinheil collection in my possession is the smaller 

 size of the former and the entirely red tibiae and tarsi. The antennae are black, with 

 the exception of the two red basal joints. 



21. Lactica violacea. (Tab. XVI. fig. 23.) 



Oblong, very slightly widened behind, black or blackish-blue below ; above violaceous or greenish blue ; 

 antennse black ; elytra very finely punctured at the base, with an obsolete depression below the latter. 



Length 1| line. 



Head impunctate, inner margin of the eyes with a single small fovea ; frontal tubercles very indistinct ; carina 

 broad, widened in front ; palpi thickened, apical joint acute ; thorax transverse, convex, the anterior 

 portion deflexed, its angles obsolete, slightly thickened but not produced ; basilar sulcation very deep, 



