104 
PRELIMINARY LIST 
Neocoelidia tuinicUfrons n. sp. 
Face a thirteenth wider than long; clypeus two-tliirds longer than broad, 
sides nearly parallel, apex nearly truncate, basal suture strongly curved; lorae 
nearly as long and two-thirds as broad as the clypeus; genae broad, somewhat depressed 
below the eye-, ou er margin broadly rounded, very broad be¬ 
low the lorae; front tumid, sides nearly parallel, broad below, 
one-fourth longer than broad, nearly twice the length of the 
clypeus, superiorly obtusely rounded. Face shagreened. Ver¬ 
tex tumid, elevated, coarsely shagreened, a shallow longitu¬ 
dinal depression on either side, three-fifths longer on the 
miadle than next the eyes, width between the eyes once and 
two-sevenths the length at the middle. Pronotum coarsely 
transversely rugose, three times ?s broad as long, four-fifths 
the length of the vertex, curvature three-sevenths of the 
length. Scutellum with lateral margins broadly, sharply, and 
deeply depressed, the scutellar suture subobsolete, nearly 
straight. Last ventral segment long, narrowing to an acute 
point, nearly equalling the pygofers. Color light green, unicol- 
orous below, except the black tips of the pygofers. Two small 
black spots within the basal angles on the edge of the elevated 
portion of the scutellum. 
Length 3.6 mm. Described from two males. 
Fort Collins, June Gth (Baker). Pleasant 
Valley, seven miles north-west of Fort 
Collins, June 12th (Gillette). 
Gnathodus ahdominalis YanD. 
Det. VanDuzee. 
Colorado (YanDuzee, 4). 
Colorado Springs, August 
2d; Glenwood Springs, August 
24th; Grand Junction, August 
26th, on sugar beet (Gillette). 
Fort Collins. June 9th on bar¬ 
ley; Steamboat Springs, July 
16th (Baker). Colorado City, 
August (Tucker). 
Gnathodus confiisus n. sp. 
Face one-fifth wider than long; clypeus twice as long as broad, 
basal suture strongly curved, somewhat constricted near the base, 
broadest near the tip; lorae about three-fourths as broad and 
thr^e-fourths as long as Ihe clypeus; genae broadly depressed be¬ 
neath the eyes, margin beneath the eyes inverted, broadly round¬ 
ed below, moderately broad below the lorae and attaining the tip 
of the clypeus; front one-fifth longer than broad, once and two- 
thirds the length of t''e clypeus, superiorly broadly rounded. 
Face, vertex, and pronotum finely shagreened. Vertex scarcely 
longer on the middle than next the eyes, width between the eyes 
slightly more than four times the length at the middle. Pronotum 
slightly less than twice as broad as long, length nearly four times 
that of the vertex, curvature about one-half of length, consider- 
