44:4 TRANSACTIONS OF THE 



the scutel, tliiglis rufous at base, common black vitta continued 

 to the tip. 



If the figure given by Olivier be correct, the specimens [13] 

 here described must be considered a variety. Several individuals 

 were brought from the Missouri by Mr. Nuttall. They are 

 occasionally taken in Pennsylvania, on flowers. When recent, 

 it is of a much more bright red than when long preserved in the 

 cabinet. The red becomes pale and the white vitta yellowish. 



Caught in Mr. Jx. Haines's garden, Germantown. 



3. L. ATRiVENTRis. — Ferruginous ; elytra deep purple ; venter 

 black. 



Length one-fourth of an inch. 



Body impunctured, naked or with very few hairs ; antennae 

 brown, three first joints ferruginous; palpi blackish; thorax, 

 disk convex ; margin towards the hind angles depressed, hind 

 angles rounded ; a longitudinal impressed line ; elytra deep blue, 

 with acute, distant, not deeply impressed strias, a series of punc- 

 tures on the external margin from the humerus to the middle of 

 the tip ; punctures more distant on the middle of the margin ; 

 nails pectinated ; venter black. 



Found under stones, &c. 



4. L. ORNATA. — Rufous ; head and elytra black ; the latter 

 with a yellowish edge and four spots. 



Carahus 4-notatus Melsh. Catal. 



Length, male one-fifth — female one-fourth of an inch. 



Body impunctured and almost destitute of hairs ; head black ; 

 three basal joints of antennse rufous ; trunk rufous, paler beneath ; 

 thorax with an obsolete longitudinal impressed line ; disk some- 

 what convex ; margin depressed ; feet pale ; nails pectinated ; 

 elytra striated ; strise acute, distant ; two large subtriaiigular or 

 subovate spots near the base ; two smaller ones near the tip ; and 

 outer edge yellow ; [14] venter pale yellow or reddish-brown. 



Var. a. The two basal spots of the elytra wanting. 



Var. /?. Head corrugated. Probably a distinct species. 



This species varies in the form of the basal spots, which arc 

 sometimes elongated or confluent with the margin, and either ab- 

 breviated or attaining the base. The posterior spots also occur 

 enlarged, so as to be confluent with the apical margin. It 



[Vol. IL 



