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Extracted from: Cockerell T.D.A., New American Hymenoptera, mostly of the Genus Nomada pp. 35-37.
FEMALE. —Length about 8 millim.
Black, with yellow markings and bright ferruginous legs.
Almost exactly like JSf. texana, Cresson (a Texas specimen
sent by Mr. Fox compared), but differs as follows:—Mesothorax more coarsely sculptured (more like N. modesta) ; tegulse orange-ferruginous ; light markings pale lemonyellow (considerably lighter than in N. modesta) ; ventral surface of abdomen wholly dark, except for two very short and minute light linear marks. The metathorax is without
the yellow spots of N. modesta. Mandibles simple; third joint of antennae longer than fourth ; transverso-medial nervure meeting basal, but a little on the externo-medial
side.
g
MALE —Length about 9 millim., but more slender. Differs from the male of N. modesta (a Colorado specimen
sent by Mr. Fox compared) as follows : —Ventral surface of abdomen with no pale bands, but only four very inconspicuous
short pale lines, on segments 3 and 4; yellow markings
paler ; no yellow spots on metathorax ; band on second abdominal segment more narrowed in the middle ; apical plate
only feebly notched ; legs red, the only light markings being
cream-coloured spots on hind coxa? and hind tibiae at apex;
wings with a more distinct apical cloud.
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