30 MEMOIRS ON THE COLEOPTERA 



B Similar to 12-guttata in form, size and sculpture but with the upper 

 surface wholly bright green anteriorly, the elytra dark violet, 

 shaded gradually paler and lustrous violet-red at the sides, the 

 under surface wholly blue and purplish-blue; labrum (9) with 

 an anterior medial black spot. Length (cf 9 ) 11.5-12.0 mm.; 



width 4.8-5.0 mm. Arizona (Prescott) maricopa Leng 



Elytra still shorter and of different shape, subquadrate, scarcely two- 

 fifths longer than wide, abruptly rounding at the sides externally 

 near apical fifth or sixth and thence very obliquely and obtusely 

 rounded through the apex; upper surface very dark and obscure 

 coppery-brown, the anterior parts barely at all paler or more metallic, 

 the labrum with a fine even black anterior edge; cluster of hairs 

 near each eye about two to four in number; elytra with all the spots 

 distinct, barely at all coppery near the external edges, the surface 

 very even, the polished granules standing out very conspicuously 

 though not large; under surface shining metallic green and blue. 

 Length (c?) 10.7 mm.; width 4.6 mm. Nevada (Hawthorne), 



Wickham quadripennis n. sp. 



Elytra longer and more evenly oval than in any other species, elliptically 

 rounding behind from near the middle of the length, without trace 

 of any strong external apical rounding, two-thirds longer than wide, 

 more convex than usual, the elytral markings all distinct and full; 

 color above very obscure and blackish coppery-bronze, feebly 

 cupreous at the sides; prothorax large, almost parallel; under surface 

 metallic green and blue throughout. Length (9) 13.0 mm.; 

 width 5.5 mm. Nevada (Hawthorne), Wickham .ovalipennis n. sp. 

 10 Body larger than in any other species of the group, blackish-brown, 

 the elytra feebly cuprascent at the sides; labrum ( 9 ) with the apical 

 edge black and the median discal region throughout the length brown ; 

 hairs near the eyes almost obsolete, perhaps more evident in the 

 male; prothorax about as wide as the head, large, transverse, almost 

 parallel; elytra ample, gradually subinflated in the female, the four 

 spots on each distinct; punctuation of the elytra not quite so effaced 

 as in the 12-guttata section, feeble confluent indentations being 

 rather evident, the granules mingled with numerous smaller shining 

 specks; under surface metallic green to bluish. Length (9) 13-5 

 mm.; width 5.8 mm. California (Humboldt Co.) .... eureka Fall 



Proteus Kirby is unknown to me, and I will not therefore attempt 

 to give it a definite place in the series. It is singular that two forms 

 so markedly different in appearance as quadripennis and ovalipennis 

 should have both been taken by the same collector and at the same 

 locality, but, though represented in my collection by different sexes, 

 they certainly can not be placed together; they are probably local 

 developments but remarkably unlike any other species of the group. 

 The coloration of the under surface seems to be an important specific 

 character; for example, in every one of a considerable series of 



