MR. A. MURRAY'S MONOGRAPH OF THE FAMILY OF NITIDULARIÆ. 409 
point preceded by a strong tooth. Maxillary lobes broad, bearded at the extremity and 
on the inner side. Maxillary palpi filiform, with the last article subcylindric. Labial 
palpi of the same form, but not so slender. Ligula corneous, furnished with two very 
broad and projecting membranous lobes. Mentum short, broadly emarginate in front. 
Thorax short, somewhat emarginate in front, truncate straight behind, depressed or 
hollowed, margined and ciliated on the sides. Scutellum triangular. Elytra flat or 
concave, margined and ciliated on the sides, apex truncate. Abdomen with two seg- 
ments exposed, the first two very short, the others moderate, equal; ; its sides ciliated. 
Fimbrize distinct and rather broad. Prosternal projection broadly truncated behind. 
Legs robust, compressed; tibiæ straight, ciliated on the outside, their terminal spurs 
rather long; tarsi slender, simple, the first article a little longer than the others; claws 
simple. 
This genus forms an exception to the characters founded on the breadth of the fimbriz ; 
it has them as broad as in the Brachypepli. Their presence here explains the conditions 
under which they are developed. Their occurrence appears to depend upon the flatness 
of the abdomen. Where the edge is sharp, the margins of the underside of the abdomen 
lap over and form the fimbria; where the edge is convex or rounded, they do not. Tt is 
as if a seam at the very edge would leave the suture too open.  Zenom«eus, although 
belonging to the section with a less depressed body and abdomen, has the upper side as 
flat and depressed as any of the Late-fimbriate, and the margins of the abdomen as 
sharp; hence the fimbriz overlap. The convexity, however, remains on the underside 
(see Pl. XXXV. fig. 9 d). It, as well as Somaphorus, intercalates badly here. The 
smoothest transition between Carpophilus and Epurea is, so far as regards the smaller 
Epuree, by Eidocolastus and Haptoncus, and as regards the larger ones, by Trimenus, 
and the occurrence of Somaphorus and Henomeus interrupts the stream of affinity 
awkwardly. They compose a parallel or cross group, a proper place for which is difficult 
to find. 
Epurea. 
Position and Affinities—Somaruonrvs. ECNOMÆUS. NrrIDULA. 
: : MxsTROPS. ; 
1. Ecnomaus PLANUS. (Plate XXXV. fig. 9.) 
Erichs. in Germ. Zeitschr. iv. 264 (1843). 
Ips planipennis, Dej. Cat. p. 134 (1837). 
Cinnamomeus, opacus, testaceo pubescens, subtiliter punctatus. Long. 3} lin., lat. 13 lin. 
| Habitat in Senegallia. 
Large, depressed, even somewhat concave above, oblong-ovate. Body pale, مد‎ 
punctate, testaceo-pubescent, cinnamon-coloured and opaque above, rufo-testaceous and 
somewhat shining below. Thorax twice as broad as long, somewhat narrowed in front, 
a little rounded on the sides, longitudinally hollowed out; base truncate in the middle, 
sinuate on each side; anterior. angles obtuse, posterior angles nearly right angles. 
Seutellum triangular. Elytra nearly flat, somewhat. depressed towards the suture, and. 
