COLASTUS. 271 
5. Colastus macropterus, var. n. sordidus. 
Depressus, niger, fusco-pubescens, nitidus ; prothorace fortiter sat crebre punctato ; antennis pedibusque rufis, 
illarum clava fusca ; elytris regulariter seriatim punctatis et pubescentibus, punctis longitudinaliter sub- 
elongatis. 
Long. 43-5 millim. ; lat. vix 23 millim. 
? Nitidula macroptera, Fabr. Syst. Eleuth. i. p. 354’. 
Colastus macropterus, Er. in Germ. Zeitschr. iv. p. 241 *; Murray, Trans. Linn. Soc. xxiv. p. 272°. 
Hab. Mexico (coll. Fry), Cordova (Sallé), Mirador (Hoge), Jalapa (Hége, Flohr) ; 
GuaTEMALA, San Gerdnimo, Purula, Senahu, and San Juan in Vera Paz (Champion), 
Coban (Champion, Conradt); Nicaracua, Chontales (Janson); Panama, Volcan de 
Chiriqui (Champion).—Soura Amertca! °, Brazil *, Amazons 3, Peru’, &c. 
Head coarsely punctate, the spots over the insertion of the antenne ferruginous. 
Thorax much narrowed in front, very coarsely, not closely punctate, sparingly pubescent, 
shining. Elytra with very regular series of punctures, the punctures not round, but 
suboblong, the pubescence very distinct, quite serial. Last dorsal segment sparingly 
and coarsely punctate. Female with an oval fovea on the last ventral plate. 
Closely allied to C. latus, but smaller, and with a different punctuation on the wing- 
cases, and with the last ventral plate in each sex differently formed—in the male of 
C. latus the sinuation of the hind margin being much greater, and the female being 
without any fovea. 
If the specimens I refer to C. macropterus be all one species it must be a very variable 
one. Most of our specimens belong to a small variety as described above, to which I assign 
the name sordidus; but other individuals differ more or less from it, and may be distinct 
or may be only varieties—as to this there is no decisive evidence at present, but if all 
are one species then certainly C. thalestris and C. tonsus, Murray, must also be included 
as varieties of C. macropterus. 
One example from Chontales and another found near the city of Guatemala by 
Mr. Champion are larger than the var. sordidus, and differ but little from Murray’s 
specimen of C. macropterus from Brazil. In Sallé’s collection there is an example of 
a very remarkable variety from Playa Vicente in Mexico entirely pallid ferruginous, 
except the outer and apical part of each wing-case. ‘There is also another remark- 
able variety represented by a single specimen found on the Volcan de Chiriqui by 
Mr. Champion, having a large red mark on each elytron; and there is also in our 
collection a specimen of a small variety from San Gerénimo, in which the pygidium 
is nearly destitute of punctuation. . 
6. Colastus brevipes, sp. n. 
Brevis, latus, parce pubescens, nitidus, niger; antennis pedibusque rufis, ilarum clava nigra; elytris pone 
scutellum minus argute testaceo-signatis, seriatim sat fortiter punctatis ; prothorace fortius punctato. 
Long. 3-3 millim. 
Hab. Brrtise Honpuras, R. Hondo (Blancaneaux) ; GUATEMALA, Zapote (Champion) ; 
Panama, Volcan de Chiriqui (Champion). 
