272 PHYTOPHAGA. 



of the body, the first three joints more or less distinctly testaceous, the rest black, third joint about half 

 as long as the second; thorax twice as broad as long, the sides straight, basal sulcation deep, surface 

 impunctate ; elytra elongate, nearly parallel, entirely impunctate ; scutellum comparatively large and broad. 



Eab. Mexico, Cordova, Toxpam (SalU), Jalapa (Edge). 



Very closely allied to L. bogotana, Har., and also to L. xantochroa, Har. ; from the 

 first distinguished by the smaller size, more transverse and altogether differently shaped 

 thorax, and from the second-mentioned species by the impunctate elytra and different 

 length of the joints of the antennae. L. tibialis, Oliv., is much smaller. 



5. Lactica chiriquiensis. (Tab. XVI. fig. 14.) 



Ovate, fulvous ; antennas (the first joint excepted), tibia, and tarsi black ; elytra very minutely punctured. 



Length 2 lines. 



Head impunctate, very flat ; eyes slightly emarginate ; carina narrow and raised between the antenna, much 

 widened and flattened anteriorly; antenna more than half the length of the body, the second and third 

 joints of almost equal length, all the joints robust, the first fulvous ; thorax transverse, its sides very 

 straight, almost concave at the middle ; basilar and lateral sulcation very distinct, surface impunctate ; 

 scutellum small, fulvous; elytra widened towards the middle, from there to the apex narrowed, extremely 

 finely punctured near the basal portion ; underside more testaceous, tibia and the tarsi piceous or black. 



Eab. Panama, David (Champion). 



In shape this species somewhat approaches L. scutellaris, in coloration L. citrina, Har. 

 I would not have separated the insect from the latter species, to which it is closely allied, 

 but for the following differences: the body, instead of being widened towards the apex, 

 as in L. citrina (of which, through the kindness of M. Oberthiir, I have a typical 

 specimen for comparison), is widened at the middle ; the second and third joints of the 

 antenna? are of nearly equal length ; the thorax is distinctly more transversely shaped 

 and the sides straighter ; lastly, the posterior tibise are longer and somewhat curved. 



6. Lactica uniformis. (Tab. XVI. fig. 5.) 



Oblong, convex, parallel, testaceous or flavous, shining ; antenna black, the two basal joints flavous ; elytra 

 extremely minutely punctured. 



Length 1| line. 



Yertex of head impunctate ; carina strongly raised ; frontal tubercles very obsolete ; eyes large, rather closely 

 approached ; antennae about two thirds the length of the body, third joint one half longer than the second, 

 the other joints elongate, of nearly equal length, black, the two basal joints flavous ; thorax about twice 

 as broad as long, its sides straight and parallel, narrowly margined, the anterior angles obtuse and rather 

 obliquely cut, basilar groove deeply impressed ; elytra narrow, convex, and parallel, without basilar depres- 

 sion, exceedingly minutely punctured when seen under a strong lens, the punctures generally surrounded 

 by piceous rings ; entire underside, legs, and tarsi flavous. 



Eab. Panama, Volcan de Chiriqui (Champion). 



The narrow parallel shape, and the pale and uniform flavous colour of the body, will 

 help to separate the present insect fromiy. citrina, Har., L. pallida, Clark, and all 

 other somewhat similarly coloured species. It has been obtained in great numbers by 

 Mr. Champion. 



