| OCR Text |
Show 302 INSECTA. There, the length of the third joint of the antennre is triple, nearly so, of that of the preceding one. These organs, as well:: the legs, are generally slender. In these, the four fit•st joints of the anterior tarsi of the m~les . b are wide, and the penultimate is bllo ate. CoLPODEs, Mac Leay. This subgenus established by M. Mac Leay, Jun.-Annul. Javan. I, p. 17, pl. i, f. 3-appears to be allied in many points to Catasc~ pus and the following subgenera. According to him, the labrum is a transverse square, and entire, the emargination of the mentum simple or edentate, and the head almost the length of the thorax. The latter is nearly in the form of a truncated cone, emarginate before, with rounded and slightly bordered sides. The elytra are slightly emarginate. The lobes of the penultimate joint of the an· terior tarsi of the male are the largest. The body is somewhat con. vex. He quotes but a single species, the brunneus. In those, all the joints of the tarsi, in both sexes, are entire. MoRMOLYaE, Hagemb. The body strongly flattened, foliaceous, and its anterior half much the narrowest; head very long, narrow, and almost cylindrical; tho· rax oval and truncated at both ends; elytra greatly dilated, and arcu. ated exteriorly,-their internal side, near the extremity, profoundly emarginate. The only species known-phyllodes-is found in Java, a' forms the subject of a Monograph published by M. Hagem· bach. SPHODRus, Clair. Bon.-Lremosthenus, Bon.-Carabus, Lin. The body depressed but not foliaceous; head ovoid; thorax cordi· form; elytra without any exterior dilatation ot· internal emargina· tion. Several of these Insects live in cellars( 1 ). Pericalus cicindeloides, 1, 2; we are still, however, ignorant of their sexual di:ff~rence, particularly as respects the tarsi. The form of the ligula of the Caw· copt and that of their tibicc remove them from Elaphrus ancl Tachys. These in· sects approximate most nearly to the Chlrenii, Anchomeni, Sphodri, &c. Seve11l of the Simplicimani have the extremity of their elytra strongly sinuous, and in this respect are hardly distinguished from the 'l'runcatipenne6. ( 1) Carabus leucoptltalmus, L.; Carabus planus, Fab.; Panz. Faun. Insect Germ. ~1, 4. In the Spltodrus terricola-Carabus terricola, Payk.; Oliv., Col. Ill, XXXV, u, 124-the hooks of the tarsi present some small dentations, as in the following subgenus. COLEOPTERA. 303 The last of the Simplicimani are distinguished f1·om all the others by the internal dentations of the terminal hooks of their tarsi. All the exterior pal pi, of some, are filiform; their thorax is either in the form of a heart, narrowed and truncated posteriorly, or in that of a trapezium widening from before backwards. CTENIPtrs, Lat. ( 1 )-Lromosthenus, Bon. The body straight and elongated, thorax cordiform, narrowed and truncated posteriorly; third joint of the antennre elongated,2). CALATHus, Bon. The body oval and arcuated above; thorax square or trapezoidal wider posteriorly(3). ' The labial pal pi of the others have a clavate termination, in the form of a top or reversed cone, and a nearly orbicular thorax. TAPHRIA, Bon.-Synucltus, Gyll. Emargination of the mentum bidentate, as in the pr~ceding sub· genera( 4). 5. The fifth section, that of the PATELLIMANI, is only distinguished from the fourth, by the manner in which the two anterior tarsi of the males are dilated; the first joints-usually the three first, then the fourth, and sometimes only the two first-all of which are sometimes square, an~ at others only in part, the remainder being cordiform, or resemblmg a reversed triangle, but always rounded at their extre· mity, and not terminated as in the preceding sections by acute angles, form an orbicular palette or long square the inferior surface of whi~his usua~ly furnished with brushes or cro~ded papillre, without any mtermed1ate vacancy. The legs are generally slender and elongated, and the thorax is frequently narrower than the abdomen, throughout its whole length. (1) Formerly CTENIPus, Lat., who recommends the substitution of the above name for his own, as we have already the genus Ctenopus. .!J.m. Ed. (_2) The ~p?odr~ janthinus, complanatus, and several others of count Dejean, ~~lch ~re dtsbngmshed from the true Sphodri by the abbreviation of the third JOmt of the antennre, and by the dentations of the hooks of the tarsi. These two subgenera are almost insensibly confounded with each other. M. Fischer has ficured several species of both under the generic appellation of Spho<lrus in· his Entom. Uuss. Vol. II. , (3~ Carabus melanocephalus, Fab.; Panz., Faun. Insect. Germ. XXX, 19;-C. ~~ des, lb., XI, 12;-C. fuscus, Fab. ;-C. frigidus, I d. See the Catalogue, &c. eJ., and the Insect. Spec. Nov., Get•mar, I, p. 13. (4) Carabw rivalia, Illig.; Panz. lb. XXXVII, 19. |
