112 
Psyche 
I Sf-p'ember 
or as flat as in the male and is of almost uniform width on 
segments 1 to 4. Posterior tibial spurs slender, sticklike, 
the outer shorter. Underside entirely black. 
The three Arizona specimens before me are 18, 20 and 
21 mm. long and are of the same proportions as the Guadala- 
jara specimens. They differ only in having the elytra dark 
chocolate brown, made to appear almost black by the black 
pubescence. Three specimens from Champion’s series are 
also available, through the courtesy of Mr. J. Balfour- 
Browne of the British Museum. Two are from Canelas and 
one from Ventanas, in Durango. These, and one specimen 
collected by myself in Tepic, Nayarit, have the elytral color 
intermediate between the Guadalajara and the Arizona 
specimens. For this reason I believe it would be prefe»*able 
to postulate a North-South dine in elytral color, rather than 
subspeciflc relationship. 
The species in our fauna that Arizona jimenezi speci- 
m.ens most closely resemble iis corvina (Lee.). They differ 
in being opaque rather than slightly shiny and in having 
the elytra a bit narrower. The greater opacity is caused by 
the denser punctures and particularly by the deeper micro- 
reticulation. The middle and hind tibiae of jimeyiezi males 
are almost straight, as in the female, while in corvina males 
they are slightly flattened, broader and more bowed than 
in the female. The anterior tarsal pads of the male of 
corvina are denser, broader and flatter than in the female 
but the pad on segment 1 is shorter than in the male of 
jimenezi, being only about 1.5 as long as in the female of 
its own species. The two species are otherwise so similar 
that they must be very closely related. Arizona specimens 
will key to corvina in my 1945 key but can be distinguished 
by the characters given above. 
Type locality: Guadalajara, Jalisco, Mexico, (of uiyro- 
pilosa Mayd. : same locality, Aug. 17, 1903, McClendon). 
Additional records: Mexico: 1, Tepic, Nayarit, July 22, 
1952, F. W. & F. G. Werner, on flowers of a Composite 
(FW) ; Ventanas, Durango, Forrer; and Canelas, Dur- 
rango, Becker (BMNH). Arizona: 1 male, Patagonia, 
July 4, 1929, F. W. Nunenmacher Coll. (CNHM) ; 1 fe- 
male, W. slope of Patagonia Mts. on Lochiel Road, St. 
Cruz Co., 5330 ft. in oak-juniper zone, July 28, 1948, W. 
