134 Psyche [December 
l/3 thicker than III; XI stout, slightly thicker and almost 4/5 
longer than X. 
Pronotum l/lO broader than long, hexagonal, angulate at the 
sides just before the middle, with scattered coarse punctures, fine 
punctulation and shallow microreticulation, appearing smooth and 
feebly shiny. Disc flattened, with a feeble median impressed line, 
a pair of feeble impressions laterally behind the middle and one in 
the center of the base. Basal impressed line distinct. 
Elytra coarsely reticulate, with the ridges of the reticulations 
narrow. The entire surface is punctulate and microreticulate, ap- 
pearing dull and roughened. Underside entirely black, more densely 
punctured and pubescent than above. Anterior tibiae with two 
slender apical spurs in both sexes. Middle tibiae bowed; posterior 
tibiae slightly bowed, with the inner apical spur slightly broadened, 
the outer broad and longer, both obliquely excavated. $ with the 
sixth abdominal sternite with a V-shaped notch which extends for- 
ward as a feeble groove ; pygidium normal, rounded apically ; 
aedeagus (fig. 3) flattened, with two recurved spines. 
Holotype: S, Anthony, New Mexico, June 21, 1941, R. H. 
Crandall (MCZ No. 28500). 
Allotype: $ , eutopotypical (MCZ). 
Paratypes: 20 $ 11 $ $ topotypical. May 23 to July 15, 
1941, R. H. Crandall. In the collections of Cornell University, 
F. H. Parker and the author. 
Lytta navajo sp. n. 
Figures 2,4 
Length: 16 to 23 mm. Moderately stout, deep blue-black except 
for a small orange frontal spot on the head, semi-opaque and with 
the elytra scabrous. In Fall’s key (footnote 2) this species runs to 
Group II, couplet 1, but differs from all of the species listed there 
in being all blue-black, having the elytra scabrous and the meta- 
trochanters of the $ not spinose. Entire surface deeply microreti- 
culate, appearing dull. Head and pronotum with some short, erect 
pubescence ; elytra almost glabrous ; underside with slightly longer 
pubescence than head and pronotum. 
Head triangular, widest at the temporal angles, l/5 broader 
than long, with dense, moderately deep but small punctures, some- 
what uneven on the disc. Median impressed line distinct down to 
the level of the hind margin of the eyes. Eyes slightly more than 
