OP PHILADELPHIA. 225 



Var. a. Thorax destitute of the black margin. 



Length more than one-fifth of an inch. 



On the Amorpha fruticosa, the leaves of which [ 462 ] it 

 feeds upon. The antennae are as long as the body, as in the 

 genus Luperus, and have but ten distinct articulations. 



[The ten-jointed antennae are seen only in the male; in the 

 female those organs have eleven joints. Otherwise this species 

 belongs to Phyllohrotica. — Leg.] 



LANGURIA Latr. 



1. L. PUNCTicoLLis. [Ante, 1, 86.] 



2. L. 3-rASCiATA. [Ante, 1, 86.] 



[Continuation from Vol. 4, 1824, pp. 88—89.] 



ALTICA Geoff. Latr. 



1. A. GIBBITARSA. — Rufous, antennae black; elytra gi-een ; 

 thorax spotted. 



Inhabits Missouri. 



Body rufous, glabrous, ovate : head with an impressed frontal 

 line : antennae blackish : thorax three-spotted; dorsal spot double ; 

 lateral ones smaller and rounded : scutel-purplish-bronze : elytra 

 green, polished ; punctures obsolete, irregular : beneath yellow- 

 ish-rufous : thighs rufous : tibia and tarsi blackish ; terminal 

 joint of the posterior tarsi very gibbous, almost spherical near 

 the claws. 



Length less than one-fourth of an inch. 



[Belongs to OedionycMs. — Lec] 



2. A. VIANS. — Thorax yellowish, with a transverse black 

 spot ; head and elytra black. 



Inhabits the United States. 



Altica vians Knoch in Melsh. Catal. 



Head black : thorax yellowish ; a transverse, black spot, not 

 undulated, occupying nearly all the disk : elytra greenish-black, 

 with minute, equidistant punctures : beneath black : pectus, on 

 each [84] side, excepting a small black spot, yellowish: venter 

 1824.] 15 



