36 Journal New York Entomological Society. [Vol vil 



have no hesitation in announcing the above synonymy. Length, 10-12 

 mm., .40-. 48 inch. 



Habitat : Desert regions of Southern California, Arizona, New 

 Mexico (near Rincon, Cockerell), Peninsula of California (Cape 

 region). 

 A. griffithi, sp. nov. 



Broad, depressed, piceous, thorax slightly purplish bronzed, elytra with faint tinge 

 of blue, maculate over their entire surface, with small yellow spots, and each with a 

 series of about seven similar red spots extending from the umbone to the tip ; the two 

 or three apical spots tending to coalesce. Upper .surface sparsely clothed with short 

 erect blackish hairs, beneath with more abundant whitish hairs which are longer and 

 denser at the sides, especially of the metasternum. Head closely deeply punctate, 

 longitudinally broadly impressed. Thorax unicolored, twice as wide as long, sides 

 regularly arcuately narrowed from Ijase to apex ; impressions broad and deep, surface 

 closely punctate, side margin narrow, not visible behind from above. Elytra as wide 

 at base as thorax, sinuately very feel)ly narrowed to beyond the middle, then strongly 

 narrowed to the tips which are conjointly jnoduced much after the manner of certain 

 Dicercas ; strire impressed, with coarse deep rounded punctures, second, third and 

 fifth intervals more convex, especially toward the base ; fourth, sixth and seventh 

 nearly obliterated by the approximation of the stride ; intervals with single series of 

 distant fine punctures. Beneath densely but not very coarsely punctate throughout ; 

 presternum produced in front in a subrectangular lobe which is feebly emarginate in 

 front ; last ventral with distinct subapical carina. Length, 13 mm., .52 inch. 



Habitat: Arizona (Tempe Desert). 



This fine species is dedicated with much pleasure to Dr. H. G. 

 Griffith, of Philadelphia, to whose liberality I am indebted for this 

 and other interesting additions to my cabinet. 



ACM/EODER^ CiRACI LI FORMES. 



Two species, alacris and comata, were separated from all others by 

 Dr. Horn on account of their unusually long slender tarsi. In cotnata 

 the hind tarsi are sul)equal in length to the tibiae and in alacris are 

 much longer than half the tibiae. These two species are furthermore 

 peculiar by their very narrow form which is strongly arched above 

 from head to tip and by the third, fifth and seventh elytral intervals 

 being subcostiform. The following are the characters given by Dr. 

 Horn for their separation. 



Prosternum emarginate at middle and on each side angulate, sXx attaining the anterior 

 angles. Thorax above unicolored. Abdomen more densely punctured at the sides 

 with longer hair comata. 



Prosternum squarely truncate beneath, alas attaining the angles. Thorax above yel- 

 low at the sides. Abdomen ver}' sparsely punctured alacris. 



