22 GEO. H. HORN, M. D. 



to require no further mention. Its description is in other respects in 

 full accord with the preceding species. 



A. mariposa, n. sp. — (PI. I, fig. 35.) Form subdepressed, surface bright 

 blue, sparsely clothed with erect brownish hair, elytra with a red band at 

 apical third interrupted at middle, a marginal spot near the middle, another 

 near the tip. Head moderately densely punctured, front flattened, vertex not 

 carinate. Thorax unicolored, less than twice as wide as long, apex very feebly 

 emarginate, sides at anterior angles very feebly arcuate, posteriorly straight 

 and gradually divergent, margin very narrow not visible from above, at base 

 inferior; disc with median line feebly impressed in front at base slightly 

 flattened, on each side a feeble fovea; surface rather coarsely but not densely 

 punctured at sides more densely. Elytra at base as wide as the thorax, um- 

 bone feebly prominent, sides feebly convergent from the base, at apex arcu- 

 ately narrowed and distinctly serrate; disc slightly depressed, stride visible at 

 sides and apex, obliterated at middle and with rather small punctures not 

 closely placed, intervals fiat, uniseriately punctulate. Body beneath bluish 

 green, sparsely pubescent. Prosternum truncate. Abdomen very sparsely 

 punctulate, last ventral without trace of subapical transverse carina. Length 

 .28 inch; 7 mm. 



This species is peculiar in its markings and surface color, and 

 by the sides of the thorax being straight from near the anterior 

 angles. 



I have seen but one specimen collected by Mr. Alphonse Thevenet 

 at Mariposa, California, and given to Dr. Leconte by the late Jules 

 Thevenet of Paris. 



A., cnlta, Weber. — (PI. I, fig. .36.) Form robust, subcylindrical, surface 

 slightly bronzed, with sparsely placed short erect setae, elytra with a dorsal 

 series of four or five yellow spots and a marginal series which in some speci- 

 mens send a branch to the do^al spot. Head densely punctured, front convex, 

 vertex feebly carinate. Thorax unicolored, nearly twice as wide as long, apex 

 and base truncate, sides arcuate and widest in front of base, n»argiu narrow, 

 not visible from above; disc convex with three small basal fovese; surface 

 coarsely and densely punctured. Elytra as wide at base as the thorax, sides 

 subparallel from base, apex gradually narrowed and finely serrate; disc eon- 

 vex, striate, strise with moderately coarse punctures, intervals more coarsely 

 punctulate than usual. Body beneath bronzed green, sparsely pubescent. Pro- 

 sternum truncate. Abdomen coarsely and moderately densely punctured, last 

 segment without trace of carina. Length .20— .30 inch; 5 — 7.5 mm. 



The markings of the elytra are of course subject to great variation 

 and may be entirely without spots. The form described is the usual 

 condition, sometimes the dorsal series of spots becomes united in one 

 irregular stripe or the surface may be nearly as intricately reticulate 

 as in stellaria. 



Occurs e\erywhere in the United States east of the Rocky Moun- 

 tainS; and very common. 



