Memoirs on the coleoptera

TENEBRIONIDyE 137
sparse punctures, which are a third as wide as the length of the
scutellum, very large for this section but very feebly impressed
and somewhat ill-defined, without carinules except the one verynear
the margin joining the latter near basal fourth, which is
however much feebler and more disintegrated than in ditplicans;
abdomen nearly similar; tarsi long. Length (cf) 25.0 mm.;
width 10.5 mm. California (Yuma, San Diego Co.).
Form nearly
esuriens n. subsp.
as in duplicans (9) but notably more convex and rather
strongly shining, black, the elytra rufo-piceous; head similarly
coarsely, loosely punctate; antennae nearly similar; prothorax similar
in size and outline but not evenly, moderately convex transversely
as in duplicans but, on posterior profile view, more strongly and
parabolically convex, the small sparse punctures a little larger and
the extremely minute punctulation of the interspaces more evident;
side margins broader and deplanate; basal impression narrower and
deeper; elytra (9) not quite one-half wider than the prothorax,
less elongate, much more convex, more oval or with more rounded
sides than in the two preceding and w r ith the apical lobe narrower,
more prominent and more abruptly formed; surface even throughout,
more declivous at the sides, without trace of the submarginal
carinule, the lateral margin similar ; legs long and slender. Length ( 9 )
26.0 mm.; width 12.0 mm. Arizona . . (Nogales).. procurrens
n. Form much more strongly obovate, the
sp.
head and prothorax relativelyless
developed, deep black throughout and shining; head with the
usual strong separated punctures; prothorax scarcely more than a
third wider than long, evenly convex transversely, finely, sparsely,
often evanescently punctate; sides not broadly but strongly reflexed,
the basal impression very feeble and transversely diffuse; elytra
two-thirds longer than wide, widest well behind the middle, the
sides rather strongly converging and broadly rounded thence to
the base, obtuse posteriorly, with the. apical lobe rather abrupt and
moderate; surface convex laterally, rather flattened or impressed
suturally, smooth, with a few coarse creases, the punctures sparse,
rather strong, each with two fine and vestigial costules and another
along and close to the suture, which is flexed outwardly basally
joining the first costule at the basal margin; first and second costules,
the latter almost obsolete, joining each other posteriorly; lateral
margins fine but strong, ending abruptly near apical fourth ;
abdomen
and legs as usual, the tarsi rather more slender. Length (9 ) 23.7-
'
27.0 mm.; width 11.2-12.6 mm. Arizona (Huachuca Mts.)
caliginosus n. sp.
Form very stout and ventricose, somewhat as in the preceding but much
more abbreviated, deep black throughout and shining; head broadly
and moderately impressed transversely, deeply, rather coarsely and
sparsely punctate; antennae long and well developed, stout as usual;
prothorax transverse, nearly one-half wider than long, the subparallel
sides evenly, rather strongly arcuate; apex much narrower than the
base and deeply, circularly sinuate, the angles rather blunt ;
surface