o14 PHYTOPHAGA.—SUPPLEMENT. 
and C. transversicollis, differing from the former by the densely punctured, rugose 
clypeus, the broader thorax, the sides of which are more rounded, and the punctate 
elytral interstices; and from the latter by the deeply punctured head and flat elytral 
interstices. From the allied C. denticulata (Ill.), the brighter bronze-colour and the 
less closely and strongly punctured head and thorax sufficiently distinguish it. 
15. Cheetocnema horni. 
Ovate, black, the antenne, tibie, and tarsi flavous; head impunctate; thorax transverse, the anterior angles 
oblique, the surface finely and closely punctured ; elytra with a slight eneous lustre, strongly punctate- 
striate, the interstices rather convex, impunctate. 
Length 3 line. 
Hab. Mexico, Teapa in Tabasco (H, H. Smith). 
This small species seems to resemble in many respects C. quadricollis, Schwarz, and 
C. decipiens, Lec., but differs from both these in usually having all the femora dark 
and the elytral interstices impunctate. The head is rather opaque, without any trace 
of punctuation ; the thorax may be described as transversely convex, with the sides 
very nearly straight and not converging in front, and the base without marginal line ; 
the elytra are widened towards the middle, their interstices rather strongly convex and 
impunctate. In some specimens the four anterior femora are almost entirely flavous. — 
16. Chetocnema balyi. | 
' Ovate-oblong, obscure eneous, the basal six joints of the antenne, the tibie, and tarsi fulvous; head strongly, 
the clypeus coarsely, punctured ; thorax closely and strongly punctured ; elytra deeply punctate-striate, 
the interstices finely granulate, impunctate, 
Length 1 line. 
Head broad, strongly but not closely punctured, without carina, the clypeus coarsely and closely punctured ; 
antenne short, the lower six joints fulvous, the others black; thorax twice as broad as long, the sides 
straight, the punctures deep and of somewhat elongate shape, but not very closely placed, with a more or 
less distinct smooth central space ; elytra deeply punctate-striate, the punctures closely placed, the short 
subsutural row straight, the interstices entirely impunctate ; tibise and tarsifulvous ; prosternum strongly 
narrowed between the coxte, 
Hab. Mexico, near the city (Hoge). 
Closely allied to C. gravida, Baly, but smaller, and differing in the straight (not 
rounded) sides of the thorax. From C. denticulata (Ill.), it may be distinguished by 
the shining and much more strongly punctured head, and the different shape of the 
thorax. . 
17. Chetocnema costatipennis. 
Black, above obscure, dark eneotis, the basal joints of the antenna, and the tibie more or less, dark fulvous ; 
head minutely granulate, scarcely punctured; thorax with straight sides, finely granulate and closely 
punctured ; elytra with deep stri, the latter closely punctured, the interstices costate. 
Length 1 line. . . 
Of rather elongate, somewhat medially widened shape; the head opaque, finely granulate, with a few very 
