90 
PRELIMINARY LIST 
+V, Described from one female. Distinctly separated from auratus by 
tne last ventral segment and by the proportions of the head. 
Pleasant Valley, six miles north-west of Fort Collins, June 
12th (Gillette). 
Deltocephalus vanduzei n. sp. 
one-ninth wider than long; clypeus two-fifths longer than broad, three- 
hs the length of the front, gradually narrowing to a rounded apex; lorae subovate 
nea,rly as long and two-thirds as wide as clypeus; genae normal except the outer margin 
^^ strongly obtusely angled, attaining the end of the clypeus. Front as long as 
wn e, sides below the antennae rapidly narrowing to the clypeus, 
superior angle more than a right angle, obtusely rounded. Face and 
vertex coarsely shagreened. Disc of vertex slightly convex, sloping 
tc the margins, length at the middle once and a half that next the 
eye. Pronotum two and a fourth times wider than long, an eighth 
longer than the vertex, curvature half of the length, posterior margin 
slighly concave, anterior fourth finely scabrous and elevated, pos- 
erior three-fourths very finely transversely wrinkled, disc with two 
small distinct pits near the anterior margin. Scutellum finely sca- 
rous. Hind margin of last ventral segment with a broad deep median 
notch, posterior angles rounded. Color dark smoky above, black be- 
ow. Eyes black. Face black, above with a row of transverse light 
dashes on either side, genae mostly margined with yellowish. Vertex 
yellow with two large black spots behind the apex which is margined 
with black, a broad black transverse me lian band, produced posteri¬ 
or y a he sides to near the hind margin, running between ocelli and 
along the margins of the eyes, and two black spots on either side 
within the hind margin near to each other, posteriorly a dark median 
ongitudinal line. Ocelli black on a circular yellow field. Pronotum dark vellowish 
s noky, anteriorly with a black spot near the median line, and laterally near the anterior 
^ angles black, extreme posterior point jet black. Elytra smoky nervures 
«xae 'aZrriu wack, Legs black, Extreme tips 
cjxae, distal half of anterior and extreme tips of middle and posterior femora vellow 
blacTwith sXJs'y^^^^^ tibiae yellow annulate with black, hind tibia^ 
nn follows:-Clypens somewhat longer. Yellow markin-s 
ypeus, also two on the clypeus near the basal angles. The parts of the transverse banrl 
pear the apex of the vertex of the fee,ale are here separated as two large rectangular black 
^alelnd one/eZll'’ Ni'’r‘weedl"'^‘'‘'’" 
Leadville, August 24th (Gillette). 
