8 Journal New York Entomological Society. [Voi. vn. 



immediately before the liind angles is a peculiar character which has 

 not been noticed elsewhere. The last ventral is without apical plate. 

 Length, 13 mm., .52 inch. 



Habitat : Sierra El Chinche (Cape Region, Baja, Cal.). 



A. flavomarginata Gray, An. King., I, p. 358, PI. XXXI, Fig. 2. 



A well known and easily recognizable species. The subapical 

 bands are sometimes connected on the disk, giving the appearance of 

 a broader band enclosing spots as described by Horn. The fifth 

 elytral interval is feebly costiform. According to Horn the last 

 ventral is " without trace of double margin or carina at tip." In nine 

 of the ten examples before me, the carina is as distinct as is usual in 

 the genus, and in the tenth is evident though feeble. The markings 

 are occasionally entirely yellow. Length, 8-12.5 mm., .32-.50 inch. 



Habitat : Southwestern Texas to southeastern California, and in 

 LowerjCalifornia (Cape San Lucas). 



A. maculifera Horn, Proc. Cal. Acad. Sci., IV, p. 382, PI. YIII, 



Fig- 5- 



A large, very broad, and strongly depressed species, the elytra 

 yellow with rounded black spots. The coloration is peculiar, and the 

 formation of the hind angles of the thorax as described in the table 

 has no parallel in our fauna and does not seem to have been fittingly 

 described by Horn. The apical plate is strongly developed, broad, 

 with free edge only feebly rounded. Length, 10. 5-12 mm., .42-.48 

 inch. 



Habitat : Texas, New Mexico (Las Cruces). 



I have seen but two examples, the type from the former, and a 

 specimen submitted by Mr. Wickham from the latter locality. This 

 specimen was taken by Cockerell and bears the label " On Bigelovia, 

 sp. Sept. 23." 



A. subcyanea, sp. nov. 



Closely agrees with the two following species in form and size. 

 Black with very distinct blue-green lustre. Thorax without spot at 

 sides, closely punctate, lateral margin a little less broad than in am- 

 pUcoUis, but reflexed and visible throughout from above. The elytra 

 have the discal punctures distinctly finer than in amplicollis or dis- 

 juncta and are irregularly marked with small yellow spots, represent- 

 ing a discal and marginal series, which become confused behind the 

 middle. Abdomen more finely and a little less closely punctate than 



