116 PHYTOPHAGA. 



the punctuation is closer and scarcely geminate ; but I am not able to discover any other 

 differences, and must consider them local varieties. 



5. tfoda costipennis. 



Noda costipennis, Lefevre, Rev. et Mag. de Zool. 1875, p. 109 \ 

 Hab. Mexico, Jalapa {Hoge). — Beazil l . 



I have examined the type of this species in the collection of Mr. Baly, and find it to 

 agree in almost every respect with the specimens collected by Mr. Hoge, which vary in 

 colour from dark blue to bronze. The male is, as usual, devoid of the elytral costae ; 

 the insect in general is rather broad and convex, the thorax very finely and closely 

 punctured, and the elytra subgeminate- punctate-striate ; from N. cretifera it is sepa- 

 rated by the want of the oblique elytral costae and its different general shape. 



6. Noda opaca. (Tab. VI. fig. 8.) 



Ovate, subparallel, blackish blue ; thorax convex, very minutely punctured ; elytra obsoletely depressed below 



the base, strongly punctate-striate. 

 $ . Elytra very finely geminate- punctate-striate, laterally costate, with a short tubercle below the base. 

 Length 2 lines. 

 Head finely punctured, more strongly at the clypeus, the latter triangular and separated from the face; 



antennae black, the first six joints fulvous ; thorax transversely convex, the sides rounded and widened 



towards the base, extremely finely punctured ; elytra closely and rather strongly punctate-striate ; legs 



dark greenish blue. 



Hab. Mexico, Cordova, Tuxtla, Playa Vicente {Salle). 



The uniform dark blue, almost black colour, and the very fine punctuation of the 

 thorax form the principal distinguishing features of this species, which seems, however, 

 closely allied to N. lateralis, of which species I should have considered it a variety, had 

 I not six specimens to compare, which agree perfectly with each other. The thorax is 

 also less narrowed in front than in N. lateralis, and the anterior angles much less pro- 

 duced. The female of the present insect is only to be distinguished from that of the 

 other named species by the colour and the fine double rows of punctures of the elytra. 

 A specimen from Cordova is figured. 



7. Noda thoracica. 



Ovate, convex, parallel, metallic green ; head and thorax strongly and very closely punctured ; elytra very 

 closely punctate-striate, unicostate near the lateral margin. 



Length 2 lines. 



Head opaque, finely granulate, covered with deep oblong punctures ; clypeus not separated from the face ; 

 antennae black, the first six joints fulvous ; thorax rather long, not more than twice as broad as long, 

 sides straight near the base, from there to the apex greatly rounded and slightly narrowed, surface very 

 convex, extremely closely punctured, the sides substrigose, metallic green ; elytra very deeply punctured, 

 the punctures arranged in double rows, below the middle the lateral margin smooth and raised into a 

 longitudinal costa ; underside and legs darker metallic green ; tibia? dark fulvous. 



Hab. Mexico, Puebla {Salle), Guanajuato {Duges, coll. SalU). 



