NORTB OF M i:\ii 0. 287 



rift % occurs in Tulare Valley, Cal., at the base of the hills on which the typical form is 

 found, in which the thorax and elytra arc much more smooth and the costae of the elytra 

 represented l>y very faint longitudinal ridges ; as a variety it may be known as A. com- 

 press a, though, as in the rough and smooth forms of cos tip ennis, 1 prefer to consider 

 it merely a local variety. I have seen sp icimens evidently belonging to this sp scies, much 

 more robusl and with the sculpture even more strongly marked. These are from Arizona 

 and in the c ibinel of Mr. II Ulke. 

 Length .60-.90 inch. 



A. captiosa, black, shining, similar in form n> A. 1. ntei, and differing :<^ !'• >11"\\ s: 



Bead very finely and sparsely punctured, thorax v convex, less margined and scarcely punctured. Elytra 



ite oval, margin broadly rounded, disc entirely smooth and without trace of costae. Length .60 .80 inch. 



I have doubts whether this should be considered distincl from Lecontei. It appears to 

 be merely a variety, the result of a still further continuance of that obliteration of sculpture 

 seen in the variety of the preceding species called coinpressa. Doubtless intermediate 

 forms will some day be discovered warranting the union of this sp scies with lecontei. 



Specimens in my cabinel are from both sides (Easl and West) of the Tulare, several 

 hundred miles northward of Fori Tejon. 



A. puncticollis, I I . . New Spec. p. 111. No. :i7!>. 



A very robust species, with elongate oval, very convex, smooth elytra, with a faint 

 marginal ridge. The thorax is broader than long, very convex, coarsely and densely 

 punctured, and sides stronglj rounded and the margin distinct, sub-acute. 



Specimens have been collected in Oregon. 



Length .78 inch. 



A. consobrina, Mark, opaque, very robust, head coarsely punctured, thorax one-half broader than long, 

 feebly convex, coarsely ;ml densely punctured, and the disc confluently punctured ;it the margin, siil.-^ broadly 

 rounded, margin moderately broad; anteriorly emarginate, angles acute, posteriorly feebly rounded, angles distinct, 

 nol prominent. Elytra broadly obovate, verj convex, margin scarcely evident, humeral angles distinct, not promi- 

 nent, base feebly emarginate; -i t it". j . indobscurelj rugose. Length .66 inch. 



This is one of our most robusl species, resembling the preceding som iwh it in g tneral 

 appearance. \s compared with 'puncticollis, it is very much shorter and more robust, the 

 thorax le>> convex and punctured, and with sides more bro idly rounde 1. and with margin 

 much broader. The elytra are very broadly oval, convex, and sudd ml) declivous b 'hind, 

 and very obtuse at apex. The base of the thorax i> broadlj rounded, tic roan ling start- 

 in-- within the hind angles and not from the angles themselves. 



A con Smithson. I , Ks. i X. M.. p. 1 I. pi. 1. fig. 10. 



In this species the marginal line of the elytra is obsolete, except a very shorl carina at 

 the humerus. The thorax is broad -v than long, moderately convex, verj fe iblj punctured. 

 margin distinct though narrow, side moderately and base feebly rounded. Elytra elong 



