NORTH AMERICAN COLEOPTERA. 115 



This species is, by the color of the legs, more nearly related to 

 torquatus, but the latter has the elytral punctuation so well marked, 

 while in the present species and the two which precede, the punctua- 

 tion is almost obliterated. 



Occurs in Arizona at Peach Springs (Wickhani). 



It. torqnattis Lee, Trans. Am. Ent. Soc. xii, 1884, p. 28. — Form elongate, 

 nearly parallel, beneath and head black, thorax yellow, elytra metallic-blue or 

 green. AntennsB a little longer than half the body, piceous, the basal five joints 

 testaceous beneath, joints 2-3 nearly equal, the fourth but little longer than the 

 third. Head greenish, smooth, the transverse impression entire. Thorax very 

 little wider than long, slightly narrowed in front, sides feebly arcuate, hind an- 

 gles not prominent, disc convex, sparsely punctate, shining. Elytra rather more 

 than twice as long as wide, sides nearly parallel, surface indistinctly alutaceous, 

 very evidently punctate, but not closely; presternum narrowly prolonged be- 

 tween the coxae. Legs black, the anterior knees and a portion of the tibia testa- 

 ceous. Length .12 — .16 inch. ; 3 — 4 mm. 



Male. — First joint of front and middle tarsi distinctly thickened. Last ven- 

 tral truncate at middle, the disc flat and rather smooth. 



Female. — Last ventral oval at tip. 



The first joint of the hind tarsus is about a fourth the length of 

 the tibia and not as long as the following joints united. 

 Occurs in California, Los Angeles and southward. 



1<. Ijecontii Crotch, Proc. Acad. 1873, p. .54; rufipes \\ Lee, Col. Kans. p. 27. 

 — Form moderately elongate. Body beneath, head and thorax black, elytra blue, 

 antennee and legs entirely yellow. Antennse more than half the length of the 

 body, joints 2-3-4 gradually longer. Head alutaceous, transverse impression 

 deep and entire. Thorax a little wider than long, sides slightly arcuate in front, 

 hind angles prominent, disc convex, smooth. Elytra nearly twice as long as 

 wide, sides slightly arcuate, surface alutaceous, with very minute punctures 

 sparsely scattered ; prosternum very narrowly prolonged between the coxse. 

 Legs entirely yellow. Length .20 inch. ; 5 mm. 



Female. — Last ventral oval at tip. 



The first joint of hind tarsus is nearly half the length of the 

 tibia, and as long as the following joints together. 



Closely resembles meraca, which, however, has the elytra more 

 shining and more punctate, and all the femora at base are piceous. 



Occurs in New Mexico, near Santa Fe. 



L<. meraca Say, Jo urn. Acad, v, 299; ed. Lee. ii, p. 344. — Form elongate, 

 beneath piceous, above dark blue or blue-black. Antenna? two-thirds as long as 

 the body, entirely yellow, joints 2-3-4, gradually longer. Head slightly aluta- 

 ceous, sparsely punctate, transverse impression deep and entire. Thorax scarcely 

 wider than long, sides feebly arcuate in front, slightly sinuate behind, angles 

 acute and prominent, disc convex, smooth. Elytra fully twice as long as wide, 

 sides nearly parallel, surface faintly alutaceous, sparsely punctate ; presternum 



TBAN8. AM. ENT. SOC. XX. JUNE, 1893. 



