Stenodynerus lucidus

Identification Atlas of the Vespidae (Hymenoptera, Aculeata) of the northeastern Nearctic region
CJAI 05, February 19, 2008
doi: 10.3752/cjai.2008.05

Matthias Buck, Stephen A. Marshall, and David K.B. Cheung

Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1

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61. Stenodynerus lucidus (Rohwer, 1917)
Figs B7.31, 35, 63, 64; C61.1–4.

Species recognition. This is the only species in Stenodynerus (and Parancistrocerus) with ivory markings and completely black metasomal segments 3–6(7). The male is furthermore characterized by the unusually small flagellomere XI (which does not reach the base of flagellomere IX).

Variation. Fore wing length 4.5–5.0 mm (♂♂), 5.5–6.0 mm (♀♀). Pale markings ivory; markings of male head and legs pale yellow. Female clypeus black; male clypeus sometimes with black apical margin. Scape pale yellow below in male, completely black in female. Pronotal spots small to minute and closely approximated, occasionally absent in both sexes. Mesopleuron with dorsal spot present or absent in female, absent in male. Tegula black or brown with black inner margin; parategula black. Pale metanotal band in male sometimes (sub-)interrupted medially, rarely absent. Metasomal terga 1 and 2 with apical fasciae; sternum 2 usually with complete apical fascia, sometimes interrupted laterally, in female rarely reduced to a pair of lateral spots.

Distribution. Canada: QC, ON and BC, newly recorded from PE, MB, SK, AB, and NT. Northern and western U.S.: MN; MT and WA south to CO, UT and CA (Krombein 1979).

Biology. Unknown.

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