68 INSECTA. 



antennae at its base and before the eyes, -which are always entire or 

 unemarginate. These Insects form a single genus, that of 



Mycterus. 



Sometimes the antennae are filifonn and the snout is not widened at 

 the end ; the thorax is narrowed before in the form of a truncated 

 cone or a trapezium; the ligula is emarginated, and the penultimate 

 joint of the tarsi bilobate. They are found on flowers, a habit indi- 

 cated by the silky prolongation of the terminal lobe of their maxillae. 



Stenostoma, Lat. Charp. — Leptura, Fab. 



Where the body is narrow, and the thorax in the form of an elon- 

 gated truncated cone; the elytra are flexible, narrow, elongated and 

 contracted into a point ; the antennae are composed of long and cy- 

 lindrical joints, and the maxillary palpi are terminated by an almost 

 cylindrical joint, hardly thicker than the preceding ones *. 



Mycterus, Clairv. Oliv. — Bruchus, Rhinomacer, Fab. — Mylabris, 

 Schceff., 



Or Mycterus properly so called, where the body is ovoid, solid, 

 covered by a silky down, and the thorax trapeziform. The abdomen 

 is square, long, rounded posteriorly ; the antennae are composed of 

 joints, mostly obconical, the complete number of which seems to be 

 twelve, the eleventh or last being abruptly narrowed and acuminated, 

 and the maxillary palpi are terminated by a large joint in the form of 

 a reversed triangle f . 



Sometimes the antennae are terminated by an elongated club 

 formed by the last three to five joints ; the snout is much flattened, 

 with a salient angle on each side before the extremity ; the thorax is 

 in the form of a truncated heart, narrowed posteriorly ; the ligula is 

 entire, and so are all the joints of the tarsi. 



These Insects live under the bark of trees, and in a natural order 

 seem to approach the Anthribvis of Fabricius, who has confounded 

 them. The body is depressed, the proboscis slightly pointed before, 

 and the tarsi are short. The palpi are thickest at the extremity. 



They form the subgenus 



Rhinosimus, Lat. Oliv. — Curculio, Lin. De G. — Anthribus, Fab. 



Designated by Illiger under the denomination of Salpingus. Some 

 entomologists have adopted both, but restrict the latter generally to 

 species in which the club of the antennae is triarticulated, and apply- 



* CEdemera rostrata, Lat., Gener. Crust, et Insect., II, p. 229 ; Stenostoma ro- 

 stratum, Charpent., Horae Entom., IX, 8 ; S. variegatum, lb., 6 ; S. viaiegata, Germ,, 

 Entom., Insect, Spec. Nov., p, 167. 



t Lat., Gener. Crust, et Insect, ii, p. 230, genus Rhinomacer. See Olivier, 

 Encyc. Method., article Myctere. 



