330 G. H. HORN, M. D. 



LACCOPHILUS, Leach. 

 L. quadrilineatus, n. sp. — Elougate oval, more obtuse in front; color pale 

 yellowish testaceous, elytra at apex pellucid, and slightly obliquely rounded. 

 Head pale testaceous. Thorax similar in color slightly sinuate at base on each 

 side and at middle obtusely prolonged. Elytra pale testaceous, suture narrowly 

 margined with black not attaining the apex, disc with four black lines on eacli 

 elytron near the suture not attaining the apex and interrupted behind the 

 middle by a large irregular black patch with a small lobe extending from its 

 outer distal angle toward the margin. Body beneath darker than the upjier 

 surface, legs very pale testaceous. Length .24: inch ; 6 mm. 



This is the only species known to me from the American continent 

 ■with the ornamentation consisting of black lines. 



Specimens were purchased by me from Gr. W. Belfrage, who collec- 

 ted them iu central Texas. 



Laccophilus pictus, Cast., was also collected in the same region as 

 the Si(])his, and others have been sent me from Texas. The species 

 should therefore be added to our list. 



COLYMBETES, CI air v. 

 C. inaeqaalis, n. sp. — Elongate oval, broader behind the middle. Head 

 black with vertical rufous spot, and anterior margin pale yellow, very finely 

 and densely punctured. Thorax yellowish or brownish with median transverse 

 band and narrow margin at middle of base black, surface intricately and con- 

 fluently lined and in the intervals punctured, lines obsolete at margin which 

 is densely and finely punctured with a few coarser punctures intermixed. Ely- 

 tra brownish sometimes paler, margin paler than disc; surface sculptured with 

 transverse lines more deeply graven at the basal two-thirds in which region 

 the surface is sub-opaque from the intervals between the lines being scabrous; 

 apical third more shining. Body beneath black shining, surface finely trans- 

 versely strigose, strigse becoming longitudinal at the first two abdominal seg- 

 ments and at the sides of the others, and at the middle of the segments the 

 lines are nearly transverse but very distantly placed. Legs pale, femora pi- 

 ceous ; legs sometimes entirely black. Length .06 — .70 inch; 16.5 — 17.5 mm. 



There can be no difficulty iu distinguishing this species from all 

 the others by the peculiar sculpture. Not only are the transverse 

 lines at basal two-thirds deeper but they are closer together than 

 those at the apex. In exaratus the lines at base are rather deeper 

 than those at apex but they are equally distant, and the intervals arc 

 not roughened on top as iu the present species. Its position iu the 

 series is near lowpihis. 



Occurs in north eastern California and Oregon. 



Cofi/mhctrs {Scu(optenis) coriarcns, Cast., has been collected by Mr. 

 Johnson Pettit, at Grimsby, Canada, and both male and female spe- 

 cimens placed ill my cabinet. 



