102 PHYTOPHAGA. 



37. Lamprosoma championi. 



Oblong-ovate, narrowed behind, metallic green ; head and thorax extremely minutely punctured ; elytra finely 

 punctate-striate, the interstices subrugose ; prosternum much broader than long, excavate. 



Length 2| lines. 



Head convex, extremely finely punctured, even under a strong lens, with an obsolete median elongate groove, 

 metallic green with a slight brassy reflection ; epistome concave, emarginate ; jaws black ; thorax very 

 moderately deflexed at the sides, coloured and punctured lite the head, except near the posterior lobe, 

 where the punctuation is a little stronger ; in front of the lobe are two oblique, rather distinct depressions, 

 the apex of the former of a rounded shape ; elytra very finely punctate-striate, the interspaces minutely 

 aciculate and subrugose, lateral lobe acute and well produced ; underside and legs metallic green ; pro- 

 sternum distinctly broader than long, excavated anteriorly. 



Hah. Mexico, Orizaba (SallS). 



Although I have only a single specimen of the present species before me, I have no 

 hesitation in considering it a distinct one. In general shape and colour it agrees with 

 L. politum, but is distinguished from that and others by the very fine punctuation of 

 head and thorax, and especially by the shape of the prosternum, which is, to my mind, 

 a good distinguishing character of the present family. In the specimen before me the 

 prosternum is distinctly broader than long, deeply excavated anteriorly, and finely 

 punctured, separating it from its allies. 



38. Lamprosoma balyi. (Tab. V. fig. 15.) 



Oblong-ovate, narrowed behind, metallic cupreous below, above metallic purplish and dark violaceous ; head 

 impunctate ; thorax finely punctured ; elytra distinctly punctate-striate ; prosternum much broader than 

 long, deeply excavated. 



Length 3 lines. 



Head very convex, totally impunctate, bright purplish aureous; epistome with a few punctures, concave- 

 emarginate anteriorly ; antennae black, the first joint metallic green, fulvous below ; thorax not more 

 than twice as broad as long, its sides- rather rounded, as well as the posterior lobe, surface finely and not 

 very distinctly punctured anteriorly, more deeply near the base, the colour the same as that of the head ; 

 scutellum metallic green; elytra showing the greatest convexity near the base, thence to the apex 

 but moderately declining, narrowed behind, the lateral lobe not very produced and rather rounded, each 

 elytron with ten rows of very distinct punctures of rather less brilliant purplish than the thorax, 

 the colour changing almost entirely to dark violaceous when viewed in certain lights ; underside and legs 

 of a more metallic greenish tint, the base of the abdomen black ; prosternum much broader than long, 

 very deeply excavated anteriorly, the basal margin rounded. 



Hah. Mexico, Yolotepec (Boucard, coll. Salle). 



This handsome species cannot easily be confounded with others, on account of the 

 peculiar colour of its upper surface and the very broad and deeply excavated pro- 

 sternum, its size and posteriorly narrowed shape will also help to distinguish it. 



39. Lamprosoma tibiale. 



Ovate, very convex, distinctly narrowed behind; submetallic bluish green below, above brilliant metallic 

 green ; head rugose-punctate ; thorax and elytra distinctly punctured ; anterior tibiae sulcate. 



Length 2f lines. 



Head flat, irregularly transversely rugose and finely punctured ; epistome deeply concave-emarginate ; labrum, 

 jaws, and the antennae black, underside of the first joint of the latter fulvous ; thorax rather long for 



