MR. A. MURRAY'S MONOGRAPH OF THE FAMILY OF NITIDULARLE. 25'7 
through Mystrops and Carpophilus, to Colastus* ; but on further consideration I have 
resolved to place the Carpophili at the end instead of at the commencement of the tribe. 
It makes the transition from the Brachypteride less natural, but that to Zpuwrea more 
so, and keeps the arrangement more in accordance with that followed in Lacordaire's 
* Histoire des Coléoptéres, which in matters nearly equal is a point of some importance. 
Section LATE-FIMBRIATA. 
Fimbrie on the pygidium large and distinct, on the other segments scarcely visible. 
Exposed portion of abdomen about the length of the thorax. Lobes of ligula large 
and horn-shaped . . . "ole. Wow ee er i CO BON 
Fimbriz present in all the i d ran of Ba A Exposed portion of 
` abdomen much longer than the thorax. Lobes of ligula not large nor horn-shaped. 
Fimbrie broad and curved . . ار‎ anus o AMBAE, 
Fimbriz narrow and aie to margin of abdomen (Cv s EO ee” Fee, 
Genus COLASTUS. 
Erichs. in Germ. Zeitschr. iv. 236 (1843). Lacord. Hist. des Coléopt. ii. 294 (1854). 
Colopterus, Erichs. in Wiegmann's Archiv, i. 149+ (1842). Fig. 31. 
Labrum late bilobum.: Ligula alis magnis. Abdomen segmentis primis quatuor 
brevibus, quinto maximo, sine segmentulo anali in utroque sexu, tribus 
ultimis expositis. Pygidium fimbriis marginalibus curvatis, antice latis, 
postice attenuatis; segmenta cetera fimbriis vix visis. 
Very flat, depressed, and often broad. Head small and short. 
Labrum broad and bilobed. _Mandibles usually dentate at their 
extremity. Antennal grooves short and convergent. Antenne short, not much longer 
than the head; first article large, second shorter than the third, fourth to eighth short 
and subequal, ninth to eleventh forming a moderately large oval club. Lobe of the 
maxillz a little enlarged and rounded at the end, bearded at the point and on the inner 
margin; the labial palpi with the last article subsecuriform ; the maxillary palpi with 
the last article cylindrie and elongate. Ligula with remarkable broad horn-shaped mem- 
branous lobes (Pl. XXXIV. figs. 1e, 2e, & 3 e)—a peculiar form, which occurs again a 
long way off in Psilotus, one of the Nitidulide. Mentum broad, emarginate in front. 
Thorax broad, emarginate in front, bisinuate at the base, and at least as broad as the 
elytra. Scutellum rather large, subtriangular. Elytra truncate, leaving the last three 
segments of the abdomen exposed ; the first four abdominal segments short and equal to 
each other; the fifth (pygidium) at least as large as all the rest united, and without any 
additional anal segment in either sex. Exposed portion of abdomen about as long as 
the thorax. Pygidium with the fimbriz large and distinct; on the other segments they 
* It will be seen that this is the arrangement in the Plates, which were begun to be engraved before I finally resolved 
to follow the present arrangement. 
t Erichson changed the name Colopterus, which he first proposed for this genus, to Colastus, on the ground of its 
being too near to that of Colobopterus, used by Mulsant for a subgenus of the Aphodii. In this I think he was 
unnecessarily fastidious. "The name might very well have stood ; and although I do not propose to revert to it, I see 
-no objection to making use of it as a subgeneric name for one portion of he genus. 
