MR. A. MURRAY'S MONOGRAPH OF THE FAMILY OF NITIDULARLE. 277 
From the southern provinces of Brazil. In the collection of the Copenhagen Museum 
and in that of M. Deyrolle. 
y- Black, with disk of elytra rufous. 
33. COLASTUS SEMITECTUS. 
Erichs. in Germ. Zeitschr. iv. 243 (1843). Lacord. Hist. des Ins. Coléopt. pl. 18. fig. 1 (1854). 
Nitidula semitecta, Say, in Journ. Acad. Nat. Sci. Philad. v. 182. 8 (1825). 
Depressus, piceus vel niger, subglaber; elytris subseriatim punctatis, rufis, lateribus 
apiceque piceo marginatis. Long. 11-2 lin., lat. 1 lin. 
Habitat in Pennsylvania et partibus meridionalibus America borealis. 
Oblong, depressed, piceous, shining, almost glabrous. Antenne rufous, with the club 
fuscous. The mouth rufo-piceous. Head flat, sparingly punctate. Thorax with the 
base lightly sinuate on each side, rounded on the sides, flat on the disk, thickly and 
strongly punctate, with the posterior angles rounded, rufescent, and wider than the elytra. 
Scutellum thickly punctate at the base, smooth at the apex. Elytra somewhat longer 
than the thorax, rather thickly punctate, in rows towards the suture, irregularly towards 
the sides, testaceous red, with the sides and the apex margined with black or piceous. 
Abdomen closely and faintly punctate. Legs red. 
I have received a variety of this species from Count Motschulsky, under the name 
of C. transparens, in which the elytra are black, with a faint reddish hue showing itself 
almost imperceptibly on the disk. Erichson mentions that in Hoffmannsegg’s collection 
this species stood under the name of Nitidula brachyptera, Knoch. 
From Pennsylvania and the southern districts of North America. 
8. Body and thorax more or less reddish or testaceous. 
34. COLASTUS AMPUTATUS. (Plate XXXIV. fig. 3.) 
Erichs. in Germ. Zeitschr. iv. 243 (1843). 
Depressus, glaber, punctatus, rufo-testaceus; elytris seriatim punctatis, plus minusve 
piceo limbatis. Long. 1j lin., lat. 4 lin. 
Habitat in Brasilia et Columbia. 
Flat, depressed, oblong, subparallel, glabrous, shining, rufo-testaceous. Antenne tes- 
taceous, with the club sometimes dusky and rather elongate. Head moderately punctate. 
Thorax finely and rather sparsely punctate, shorter than broad, transverse, and somewhat 
quadrate; base truncate, with a very slight bisinuation on each side; disk flat, in some 
specimens hollowed ; sides rounded rapidly in front. Scutellum somewhat triangular, with 
the apex rounded, faintly punctate at the base, impunctate atthe apex. Elytra as long as 
the head and thorax taken together, rather finely punctate, the punctures arranged in 
rows, which are pretty close to each other; semitransparent, the marks of the folding of 
the wings beneath being occasionally seen through them, the exterior margin and apex 
in some specimens dusky or blackish ; when this is the case, the coloration is darkest 
towards the apex. Segments of abdomen finely punctate, the punctures longitudinal. 
Legs testaceous or ferruginous. i 
From Brazil and Venezuela. Common. 
VOL. XXIV. 
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