1888.] PHYTOPHAGOUS COLEOPTERA. 343 



species of the genus, A. gaschkevitchi, by the colour of the thorax and 

 that of the elytra. 



COLASFOIDES CHINENSIS, n. Sp. 



Piceous ; above metallic green ; antennae, labrum, and legs flavous ; 

 head finely rugose ; thorax remotely punctured ; elytra deeply punc- 

 tate, the interstices at the sides rugose and wrinkled. 



Length 2h lines. 



Head with a longitudinal groove on the vertex, closely punctured 

 and slightly rugose at the vertex ; clypeus finely punctured, its 

 anterior margin nearly straight; labrum fulvous. Antennae two thirds 

 the length of the body, very slender, pale fulvous, the terminal joint 

 fuscous at its apex ; thorax nearly three times broader than long, 

 narrowed in front, the sides evenly but not strongly rounded, the 

 surface impressed with some fine punctures which disappear entirely 

 at the sides and near the base ; scutellum impunctate. Elytra with a 

 scarcely visible depression below the shoulders, the latter prominent, 

 smooth ; the disk impressed with rather deep and closely arranged 

 punctures, which form very irregular rows, the interstices at the sides 

 and at the apex rather strongly transversely wrinkled and rugose ; 

 legs entirely fulvous or flavous. Underside nearly black. 



Many specimens, allied to C. martini, Lefev., and differing in the 

 colour of the underside, the differently coloured thorax, and the 

 want of the tooth at the femora ; C. femoralis, Lefev., has a strongly 

 punctured thorax and differently coloured antennae and tibiae. 



COLASPOIDES OPACA, n. Sp. 



Piceous ; the labrum and the five lower joints of the antennae 

 fulvous ; head and thorax metallic green or cupreous ; elytra blackish, 

 opaque, the suture and lateral margin narrowly metallic. 



Length 2| lines. 



Head with a longitudinal groove at the middle, finely and rather 

 closely punctured, metallic cupreous or green, the clypeus not sepa- 

 rated from the face; labrum fulvous ; palpi testaceous. Antennie two 

 thirds the length of the body, black, the basal five joints testaceous. 

 Thorax transverse, the sides rounded, narrowed in front, the anterior 

 angles thickened and acute, the posterior margin oblique at the sides 

 and slightly sinuate, the surface very finely and closely punctured, 

 and covered throughout with fine longitudinal strigse ; scutellum 

 obscure cupreous. Elytra finely and closely semiregularly punctate- 

 striate, the shoulders acute, the base without any depressions, nearly 

 black with a very slight metallic tint, the margins very narrowly 

 metallic green and cupreous. Underside and legs black, the breast 

 tinged with metallic green. 



6'. ojjaca may be at once known from any other species of Colas- 

 poides by the finely strigose surface of the thorax and the nearly 

 black and opaque colour of the elytra. 



COLASPOIDES SPINIPES, n. Sp. 



Black ; the basal joints of the antennae, the labrum, and the femora 



24* 



