On 
DISONYCHA. ; 27 
5 (Bs). Disonycha affinis. 
Flavous, the base of the head, the antennsw, the tibie (partly), and the tarsi piceous; thorax and elytra 
impunctate, the latter metallic green. 
Length 23 lines. 
Hab. Guaremata, Duefias (Champion). 
Chiefly distinguished from its similarly coloured allies by the more transversely-shaped 
thorax ; from D. melanocephala by the flavous colour of the anterior portion of the 
head and the colour of the tibiz (which are piceous, except at the base); from 
D. mellicollis (Say) by the entirely yellow metasternum and abdomen, and the shining 
impunctate thorax. 
5 (c). Disonycha politula. 
Disonycha poiitula, Horn, Trans. Am. Ent. Soc. xvi. p. 211 (1889) *. 
Hab. Norva America, New Mexico and Arizona !.—Mexico, Hacienda de Bleados 
in San Luis Potosi (Dr. Palmer), Chilpancingo in Guerrero (H. H. Smith), Capulalpam, 
Guanajuato, Cordova, Yolos (Sallé), Jalapa (Hoge). 
Very closely allied to D. collata (Fabr.), and perhaps a local variety of that species, 
from which it only seems to differ by the bicoloured posterior femora and the more 
distinct elytral punctuation. 
11 (4). Disonycha angulata. (Tab. XLII. fig. 2.) _ 
Fulvous, the terminal joints of the antenne and the legs black; head and thorax distinctly punctured, the 
latter spotted with piceous; elytra closely punctured, flavous, the sutural and lateral margins, a spot at 
the shoulder, an angulated fascia before the middle, another near the apex, and the apex itself, black. 
Var. The legs more or less fulvous. 
Length 3-33 lines. 
Hab. Mexico, Playa Vicente (Sallé), Teapa in Tabasco (Hége) ; GUATEMALA, Teleman 
in Vera Paz (Champion). 
This species closely resembles D. trifasciata in its system of coloration; but differs 
from it by the distinctly punctured head and thorax, and by the anterior fascia of the 
elytra being angulate at the middle. 
26 (a). Disonycha horni. 
Disonycha crenicollis, huj. op. p. 316 (part.) (nec Say, Horn). 
Pale fulvous and pubescent below, above flavous; the antennae, the upper margin of the femora, the tibie 
and tarsi black; thorax with two black spots; elytra with the suture, a narrow discoidal vitta, and a 
narrower submarginal one, black. 
Length 3-33 lines. 
Hab. MExIco, Northern Sonora (Morrison), Puebla (Sallé), Misantla, Orizaba, Teapa 
(H. H. Smith). 
2n2 
