DOEYPHOEA. 253 



the suture below the base, two others of the same shape below the middle, also joining the suture, and a 

 large triangular spot near the apex dark fulvous. Underside and legs of the same colour. Mesosternal 

 process short and conical. 



Hab. Nicaeagua, Chontales (Janson, Belt). 



In coloration and shape this species is closely allied to D. eucosma, from which the 

 arrangement of the elytral spots sufficiently distinguishes it. The thorax varies a good 

 deal in the five specimens before me, being more convex and narrower and the sides 

 more rounded in one instance than in the others, the punctuation also varying from 

 few to many punctures, which, however, are never very closely placed. 



28. Doryphora eucosma. 



Doryphora eucosma, Stal, Diagn. 1859, p. 469; Monogr. Chrys. Amer. p. 72 \ 

 Hab. Costa Eica 1 ; Panama (coll. Jacoby). 



Of this apparently rare species the type, contained in Mr. Baly's collection, is the 

 only specimen besides a variety contained in my own which has come under my 

 notice. In the insect from Panama, which is much larger than the typical specimen, 

 all the darker parts have a metallic greenish gloss, and the elytral anterior marks vary 

 in the following way: the elongate band from the base to the suture is connected 

 with the latter not only behind the middle, as in the type, but also directly below the 

 scutellum ; and the large lateral spot is prolonged to the lateral margin below the 

 shoulder: the spot below the middle also touches the margin at one point. In other 

 respects the insects are the same. The lateral margin of the thorax in the present 

 species shows a more or less distinct tendency to thicken, the thickened part being 

 preceded by an obscure longitudinal groove, as so often seen in many European 

 species of Chrysomela, but scarcely ever to be found in the insects of the present 

 genus. 



29. Doryphora biplagata. 



Ovate, convex, bluish black ; thorax strongly and remotely punctured ; elytra subgeminately punctate-striate, 

 each elytron with an elongate lateral spot at the base (including a small dark spot) and another oval one 

 near the apex fulvous. 



Length 5 lines. 



Head closely and finely punctured ; antennae rather long, extending to nearly the first third of the elytra, the 

 last six joints widened, slightly longer than broad, black, basal joint testaceous below. Thorax transverse, 

 the sides flattened, the lateral margin much rounded towards the anterior angles, the latter acute, scarcely 

 produced ; surface remotely covered with rather deep punctures irregularly distributed ; scutellum impunc- 

 tate, broad. Elytra convex at their first third, thence to the apex rather suddenly declining, surface 

 rather regularly subgeminately punctate-striate, the punctuation becoming more confused towards the 

 sides, of a dark blackish blue ; a pear-shaped fulvous spot extends from the base to nearly the middle of 

 the elytra, and is placed nearer the lateral than the sutural margin ; and, including a small bluish-black 

 spot, another fulvous more oval-shaped spot is situated near the apex and close to the suture. Mesosternal 

 process long and curved. 



Hab. Panama, Volcan de Chiriqui (Champion). 



