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ART. VIII. — Descriptions of North American Coleoptera, chiejiy in the Cabinet of 

 J. L. Le Conte, M. D., with references to described species. By S. S. Haldeman. 



CEPHALOON Newman. Ent. Mag., Vol. v. 



Body slender : the breadth to the length as one to five : elytra tapering posteriorly, length exceeding 

 three times the width at base : scutel triangular, with the apex rounded : prothorax pyramidal, longer than 

 wide, base rectilinear, scarcely as wide as the elytra, sides rapidly converging to a narrow apex one-third 

 the width of the base : head small, depressed, elongate and protracted, contracted from the eyes anteriorly 

 and posteriorly to the incisure formed by its attachment : eyes lateral and vertical, emarginate anteriorly for 

 the reception of the antennae : antennae short, scarcely extending beyond the humerus, slightly thickened 

 towards the apex : first and second articulations obconic, the latter very short, the third cylindric and as 

 long as the fourth and fifth, which, with the remainder, are subequal and obconic, except the eleventh, 

 which is lengthened ovate : the four terminal articulations are manifestly thicker than the antecedent ones : 

 labrum large, transverse, and rounded before, where it is clothed with hairs : mandibles strono-, incurved 

 and acute : maxills slender and porrect, the apex clothed with twisted hairs : maxillary palpi with the 

 apical articulation securiform, the penult short obconic, and the preceding one cylindric : labial palpi 

 2-articulate, apex obconic : feet long and slender, medial and posterior tibise with two terminal spines, tarsi 

 simple, heteromerous, ungues finely pectinate, pulvilli oval. 



C. LEPTUROiDES Newm. Ent. Mag. Fulvo-testaceous, finely pubescent, eyes and 

 apex of the abdomen above, black ; disk of the pronotum more or less fuliginous ; 

 apex of the posterior tibiae and femora, and medial tibiae, of the same colour, 5 lin. 

 long. This is a narrow insect with slender feet, tapering elytra ; prothorax lono-, 

 diminishing rapidly anteriorly, where it is narrower than the head, the base beino- 

 slightly narrower than the elytra. Ichnodes lepturoides\.'De]edin* 



C. VARiANS Hold. Finely pubescent, cinereo-fuscous, head and prothorax varyino- to 

 fulvous ; antennae and feet of the latter colour, apex of the posterior femora and tibiae 



* The mark \. (an inverted t) is here proposed to be placed between the name and the authority when a species 

 has not been characterized, the reversed mark indicating the impropriety of such a practice. In synonymy a 

 recent name sometimes takes precedence of an earlier one, and it is often inconvenientj particularly in catalogues 

 to give the reason. When a name has been previously used, let it be denoted by II, the double line indicatin"- 

 that there are two supposed distinct species under this name, as — Cicindela hentzii Bcj. — C. hffimorrhoidalis II 

 Hentz, the latter having priority in date, but with a name previously in use. When an author cites erroneously 

 the mark t may be used, as— Aphodius fimetariustiafr., which is not the true A. fimetarius Lin. (Scarabseus.) 

 The practice, in lists of synonyms, of citing a different authority for each work is wrong, as in Lucanus c.errus 

 Lin., L. cervus Latr. R. An. etc., because Latreille describes the species as that of Linnaeus. In the case of the 

 mollusc Infundibulum trochiformis Lom. (Calyptrea): I. trochiformis ifn; the latter citation is correct, as it is 

 here inadvertently described as a new species under a preoccupied name. As many cite, a synonym like this 

 will not inform us whether the citation refers to a supposed new species, (as in this case) or to the placin" of the 

 species under a different genus from that in which it was first placed. Proceed. Am. Phil. Soc. iv. 371. 1847. 



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