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Show 446 INSECTA. men, and more strongly granulated elytra, on which the two innet· elevated lines arc almost effaced. In other species,-TRAOHYDERMA, Lat.,-the abdomen is propor. tiona11y narrower and more elongated, and frequently much com. pressed laterally; the legs are long, and the tibit:e, the anterior ones not excepted, slender, narrow, and terminated by small spurs. They are usua11y found further south than the preceding species(l). A last division of the Pimelire-CRYPTOCIIYLE, Lat.-is composed of species in which the body is relatively shorter or mot·e thick-set, the mentum covered by the prresternum, and the antennre are ab. ruptly terminated by a club, divided into two parts, one formed by the ninth joint and the other by the two following ones, which are confounded together. These species appear to be concentrated in the southern extremity of Africa(2). Under the generic appellation of Erodius, were formerly united certain Pimelari:£, closely allied to the pt·eceding ones, but in which the body is ovoid, short, arcuated or gibuous above, the thorax short, as wide posteriorly as the base of the elytra, and terminated on each side by an acute angle; and the prresternum dilated poste· riorly in the manner of a lamina or point, with its posterior extre· rnity resting on the mesosternum. These Erodii now form three subgenera. In Enonrus, Lat. Or Erodius properly so called, the two last joints of the antennre are united and form a small globuliform club, the anterior tibire have a stout tooth near the middle of their outer side, and another on the same side at the extremity, and the mentum is incased (tn· cadr~) inferiorly and covers the base of the maxillre. Their body is usually convex(3). ZoPHosxs, Lat.-Erodius, Fab. Oliv. Where the antennre are almost filiform or enlarge insensibly to· wards the end, with the tenth joint very distinct ft·om the preceding, somewhat larger and almost ovoid, and where the anterior tibire as well as the following ones have no tooth near the middle of the outer (1) The Pimelire longipes, ltispida, morbilosa, &c., of Fabricius; the Pim. anom· ala of Fischer. (2) The Pimclire mawlata and minuta, Fab. F'or the other Pimelire, see Oli· vier, Schcenherr, and Fischer. (3) The Erodii bilineatus, gibbus, lrevigatus, Oliv., Col., III, No. 6.~. See Lnt., Gener. Crust. et Insect., lit p. 145, and the Catalogue, &:c. ofDej,•an. COLEOPTEUA. 447 side. The mentum is encased (en cadre) inferiorly, and covers the base of the maxillre. The third joint of the antennre is hardly longer than the second, and the ninth and tenth are almost turbiniform( 1 ). Those of the third, or the N YOTELIA, Lat.-Zophosis, Germ. Are almost similar to the Zophoses, but the third joint of their antennre is much longer than the preceding one; the following, as well as the ninth and tenth , is nearly globular. The base of the maxillre is exposed. Besides this, these Insects are peculiar to South America, whilst the Zophoses and Erodii are exclusively confined to the western and southern parts of Asia, and the south of Europe and Africa(2). Other Pimelarire, terminating the subdivision of those in which the labrum is not received into a deep emargination of the anterior border of the head, and in which this last part of the body is neither truncated before nor narrowed behind, are distinguished from the preceding by the following characters. The middle of the anterior margin of this part projects in the manner of an angle or tooth. The labrum does not appear when the mandibles at·e closed, or but very little. The thorax is sometimes trapezoidal, almost as long as it is broad, and at others almost oruicular or nearly semicircular. The antennre are filiform, and the eleventh and last joint is always very distinct from the preceding one. The mentum is incased inferiorly and covers the base of the maxillre. The prresternum is slightly prolonged into a point in several. These Insects, like those of the two following subdivisions, are exclusively peculiar to the hot and western countries of the eastern continent. HEGETER, Lat. The thorax forming a trapezium, almost as wide at the posterior margin as the base of the elytra, and in contact with it throughout; the last joint of the antennre somewhat smaller than the preceding one(3). TENTYRIA, Lat.-.llkis, Fab. The thorax almost orbicular, sometimes narrower than the abdomen, and at others of equal width, but rounded at the posterior (1) See Lat., Gener. Crust. et Insect., II, p. 146. (2) Zoplwsis nodosa, Germ., Insect. Spec. Nov., p. 133. (3) Lat., Gener. Crust. et Insect., II, p. 157; It ix, 2;-Pimelia 3ilphoidu.2 Oliv.;-Gnatho&ia glabra, Fischer, En tom. Russ., II, xxt 8. |
