Hypanthidioides (Michanthidium) ferrugineus (Urban, 1993)

Gonzalez, Victor H. & Griswold, Terry L., 2011, Taxonomic notes on the small resin bees Hypanthidioides subgenus Michanthidium (Hymenoptera, Megachilidae), ZooKeys 117, pp. 51-58 : 54-55

Hypanthidioides (Michanthidium) ferrugineus (Urban, 1993) Figs 6-11

Gnathanthidium ferrugineum Urban, 1993 [1992]: 342 (Holotype: DUZP; ♀, San Pedro Colalao, Tucuman, Argentina)

Diagnosis.

This species can be easily separated from Hypanthidioides albitarsis by the coarser punctures on the scutum, scutellum and terga (compare Figs 4 and 6), small median spine on the preapical carina of female T6, and the following characters in the male: T6 without small sublateral spines, T7 with acute lateral and median spines (Fig. 7), hind coxa without midapical spine, with a short row of black, thick short hairs on median margin (Fig. 8), and S2-S4 with complete, well-developed premarginal hair bands.

Description.

Male: Body length, 8.2mm; forewing length, 5.5 mm. Structure.Hind coxa ventrally without apical spine on median margin; hind trochanter carinate medially. T6 without sublateral spines or protuberances; T7 with acute lateral and median spines (Fig. 7); S5 and S6 each with small lateral spine; S7, S8 and genital capsule as in Figs 9-11.

Head ferruginous including antennal scape and pedicel except: dark reddish brown on mandible, inferior gena and distal flagellomeres; black on labrum, ocellar and torular areas; yellow on clypeus and inferior paraocular area. Mesosoma black except: ferruginous on tegula and legs excluding coxae (trochanters and femora variably darkened); yellow on pronotal lobe, tegula anteriorly, scutum on anterior and lateral margins, axilla, scutellum on distal margin, coxae. Metasoma dark reddish brown, lighter on sterna except T1, T3, T5, T7 and S2-S4 each with complete yellow band, rema ining terga maculate laterally. Wings brownish, darker on anterior margin including marginal cell; veins, stigma and prestigma dark brown.

Pubescence whitish except yellowish on inner surfaces of tarsi; hairs long, dense, distinctly plumose on paraocular area, pronotal lobe, mesepisternum and metepisternum ventrally, lateral surface of propodeum, inferior margin of fore femur, premarginal areas of S2-S4; hind coxa with distinct row of stout black hairs medially on ventral surface (Fig. 8).

Head and mesosoma including coxae, anterior surfaces of hind trochanter and femur coarsely punctate, punctures about one-fourth to one-third width of median ocellus except finely punctate on pronotum, omaulus, metepisternum, most of propodeum and remainder of legs; terga as coarsely punctate as scutum with wide, impunctate, translucent, apical margins on T1-T6.

Material examined.

(n = 5♀, 8♂) 5♀, 6♂; Argentina: Prov. Tucumán, Tacanas, 10-XII-1977, L. A. Stange. Flowers, Cuphea sp. [ Lythraceae ]; two other males with the same data but collected on November and December of 1968 (BBSL, FSCA).

Comments.

Both males and females of this species have been collected on flowers of Cuphea sp. ( Lythraceae ).