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Nomada parva Robertson, 1900
Nomada infantula Cockerell, 1907

Life   Insecta   Hymenoptera   Apoidea   Apidae   Nomada
Subgenus: None

Nomada parva, Mid-Atlantic Phenology
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Nomada parva, Mid-Atlantic Phenology

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    Note: This is a tiny Nomada...and one almost certainly assoiated with Panurginus rather than Andrena species. Suspected host species include P. atramontanus and P. potentilla. Female N. parva have short faces essentially no pitting on the tergites and the male has a yellow stripe running the length of the rear tibia. Both have relatively and subtlety short faces in comparison to other Nomada ...meaning that the clypeal rim is at the level of the imaginary line connecting the bottoms of the compound eyes or just slightly projecting...
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Nomada parva FEM mm
© Copyright Laurence Packer 2014 · 7
Nomada parva FEM mm
Nomada parva, Female, Back, Maryland, Wicomico County-Recovered
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Nomada parva, Female, Back, Maryland, Wicomico County-Recovered

Nomada parva, Female, Face, Maryland, Wicomico County
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Nomada parva, Female, Face, Maryland, Wicomico County
Nomada parva, Female, Side, Maryland, Wicomico County
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Nomada parva, Female, Side, Maryland, Wicomico County

Nomada parva T1 0%
© Mary Paul · 1
Nomada parva T1 0%
Nomada parva T2/T3 rim absent unpitted
© Mary Paul · 1
Nomada parva T2/T3 rim absent unpitted
Overview
Reprinted with permission from: Mitchell, T.B. 1962 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 152.

FEMALE�Length 5-5.5 mm.; lateral ocelli considerably nearer margin of vertex than each other; cheeks much narrower than eyes, posterior margin subcarinate; longer side of basal segment of flagellum equal to segment 2, median segments only very slightly longer than broad; mandibles slender and simple apically; wings subhyaline basally, becoming rather deeply infuscated along apical margin and in marginal cell, with the usual three submarginal cells, 2nd very much broader anteriorly than 3rd, veins pale testaceous, stigma somewhat more ferruginous, basal vein somewhat basad of transverse median; tegulae shining between very fine and indistinct punctures, these close along inner margin, becoming quite sparse along outer margin; posterior margin of scutellum slightly impressed medially; front coxae not spinose; apex of hind tibiae with a row of four or five very slender but elongate hair-like bristles; head largely yellowish-ferruginous, quite strongly yellow along margins of eyes below, a small amount of black between and above antennae and around ocelli, and cheeks rather narrowly black along posterior margin; antennal scape yellowish anteriorly, somewhat more reddish-piceous posteriorly, flagellum brownish-testaceous below, more brownish-piceous above; tubercles and tegulae strongly yellow, thorax otherwise largely yellowish-ferruginous, pronotal collar somewhat more yellowish, scutum with a median black line, and mesopleura with a restricted black area below; abdominal terga largely testaceous, becoming broadly yellowish-hyaline apically, terga 2 and 3 with small, widely separated, yellow maculae; vertex and face above antennae coarsely, closely and deeply punctate, cheeks much more finely so, supraclypeal area and clypeus very finely and closely punctate, the lateral areas of face below antennae quite coarsely and distinctly punctate; scutum, scutellum and mesopleura quite densely rugose, propodeum somewhat more finely so posteriorly, lateral faces becoming somewhat smoother below, triangle rather smooth but dull below, becoming obscurely rugoso-striate above; legs testaceous in large part, front legs more yellowish anteriorly, spurs pale yellow; abdominal terga practically impunctate, the more apical terga with scattered, shallow and fine punctures evident apically; pseudopygidium very short, transverse forming the very narrow, truncate, apical margin of tergum 5, densely clothed with suberect, silvery tomentum; pubescence very short and thin, entirely whitish, rather dense on thorax laterally and below and on cheeks below, hardly evident on abdomen dorsally, sterna with very fine and sparse, whitish hairs; apex of sternum 5 with a tuft of rather elongate, yellowish hairs on each side of midline, which converge medially.

MALE�Length 4.5-6 mm.; lateral ocelli somewhat nearer margin of vertex than to each other; cheeks considerably narrower than eyes, posterior margin only obscurely subcarinate; antennal scape slightly swollen. apex deeply excavated, largely enclosing pedicel, basal segment of flagellum very short, the longer side somewhat shorter than segment 2 which is also short, median segments little if any longer than broad; mandibles slender and simple apically; wings hyaline basally, becoming lightly infuscated along apical margin and marginal cell, with the usual three submarginal cells, 2nd somewhat broader than 3rd anteriorly, veins testaceous to piceous, basal vein slightly basad of, or interstitial with, transverse median; tegulae shining between minute, rather sparse, barely visible punctures; scutellum rounded posteriorly, not appreciably impressed; front coxae not spinose; hind femora slender and unmodified; clypeus, labrum, mandibles, and lateral facial maculae that extend very narrowly up margin of eye to level of antennae, bright yellow; face above clypeus largely black, vertex and cheeks entirely so; antennal scape yellow anteriorly, piceous posteriorly, flagellum pale testaceous below, somewhat more brownish above; tubercles and a very small anterior spot on mesopleura, yellow, tegulae more testaceous-hyaline, thorax otherwise black; legs entirely yellowish-testaceous, spurs pale yellow, hind tarsi somewhat darkened; abdominal terga reddish-testaceous in part, basal tergum blackish across base, terga 2-6 with lateral, widely separated, bright yellow maculae, those on 2 rather large, successively smaller on the succeeding terga, median basal areas of discs testaceous to piceous, the broad, apical, impressed rims yellowish-hyaline; sterna yellowish at least in part, apical rims broadly hyaline, sternum 6 bright yellow in large part; vertex, face above antennae and upper part of cheeks densely and rather coarsely rugose, cheeks below and lower half of face more finely rugose; clypeus and supraclypeal area very minutely and closely punctate beneath rather dense pubescence; scutum, scutellum and mesopleura densely rugose, pleura somewhat more coarsely so; propodeum posteriorly rather coarsely rugose, becoming rather smooth on each lateral face below, triangle somewhat smoother below, becoming quite coarsely and irregularly reticulate above; discs of abdominal terga very minutely and rather closely punctate basally, punctures invading the depressed apical rims but becoming extremely minute and obscure, especially on the more apical terga; pubescence rather short, entirely whitish, quite dense over face, lower cheeks and thorax below and posteriorly, very fine and inconspicuous on abdomen dorsally, more elongate but very sparse on abdominal sterna, sternum 6 becoming rather densely but very finely pubescent along mid-line toward apex; pygidial plate rather narrow, median length somewhat greater than basal width, the narrow apex rather deeply incised, margins carinate, surface very finely and closely punctate; exposed abdominal sterna unmodified, sternum 6 strongly narrowed to the narrowly rounded tip; sternum 8 with a slender apical process; gonocoxites of genital armature as shown (fig. 107).

DISTRIBUTION�Michigan to the New England states, south to Mississippi, March to June.

FLOWER RECORDS�Fragaria, Rubus and Senecio. This species is recorded by Robertson (1929) on Capsella, Geum, Nothoscordum, Osmorrhiza, Potentilla, Ranunculus and Smilax.


Identification
Extracted from: Robertson, C. (1900). Nomada Sayi and two related new Species. The Canadian Entomologist. pp. 293-295.

Female. Resembles the female of N. IlIinoensis, but is a little smaller; joint 4 of antenn Male. eape stout, joint 4 of antennro longer than 3, a little longer than 5, much shorter than 13, 5-8 not sub-lobate at apex beneath; pygidium bifid; black, mandibles, labIUm, ciypetls except sometimes at base, lower anterior orbits, scape in front, flagellum except at base above, tubercles, teguhe, sometimes a spot on pleura and legs in front, yellow; abdomen reddish, segments 4-6 more or less blackish; yellow markings on segments of abdomen as follows: A spot on each side of 2 and 3; one or two,J spots on each side of 4, sometimes wanting; a band on 5 narrowed or interrupted medially, and sometimes a spot on each extreme side, all sometimes wanting; a transverse spot on 6. Length, 5-6 mm.

Extracted from: Swenk, M. H. 1915. The University Studies of the University of Nebraska, Vol. 15.

A pair from Southern Pines, North Carolina, April 12, 1910 (A. H. Manee) seem referable to N. parva in general characters and size, but the abdominal spotting is confined to small but dis tinct spots on the sides of tergite 2. The 2 (“D’”) agrees per fectly with Cockerell's description of N. infantula except for the two abdominal spots and the reduction of the median propodeal band to a spot on the enclosure. The 3', however, has the an- . tennae as in parva dº, joint 4 being longer than 3 or 5 but much shorter than 13, with joints 4–7 not sublobate at apex beneath, while in infantula 3 joint 4 is not only conspicuously longer than 3 or 5 but subequal to 13 and joints 4–7 are sublobate at apex beneath, much as in sayi gº. Also the clypeal and lateral face marks are yellow like the labrum, mandibles and front of scape, not ferruginous as in infantula 3. Evidently parva and infantula are separable chiefly in the 3 sex. A female from Hamilton county, Kansas, 3,350 feet (No. 367, F. H. Snow) is also refer able to N. parva, but, like the North Carolina 2, has yellow spots on tergite 2 only. N. minuta Swenk is definitely separable from the forms of parva by the distinctly longer third antennal joint; joint 3 is two-thirds as long as 4 and one-half as long as 12, the proportion being 3:4.5:6, while in parva joint 3 is only one-half as long as 4 or less and not over five-twelfths as long as 12, usually about one-third as long, the proportions in three ? being: 2.5:5: 6 (Illinois), 2:5: 6 (Kansas) and 2: 4.5: 6 (North Caro lina). It is also paler red, with less black color, than N. parva, and has the hair on the inner side of hind basitarsi blackish instead of pale and no yellowish color on the lower corners of the face.


Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Apiaceae  Pastinaca sativa @ BBSL (1)
Asteraceae  Erigeron sp @ BBSL (1)
J. rykken  1026 @ JRYB__SHEN (1)

1029 @ JRYB__SHEN (1)

1049 @ JRYB__SHEN (1)

983 @ JRYB__SHEN (3)

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Updated: 2024-03-28 13:59:28 gmt
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