Hylaeus (Deranchylaeus) lightfooti Bridwell, 1919

Dathe, Holger H., 2014, Studies on the systematics and taxonomy of the genus Hylaeus F. (8) Revision of the Afrotropic subgenus Hylaeus (Deranchylaeus) Bridwell (Hymenoptera: Anthophila, Colletidae), Zootaxa 3874 (1), pp. 1-84 : 50-52

Hylaeus (Deranchylaeus) lightfooti Bridwell, 1919

Figures 25 , 45 , 98–101

Hylaeus (Deranchylaeus) lightfooti Bridwell, 1919: 137–138 , 145. 1 ♀ 1 ♂, South Africa: Cape Town. Syntypes USNM Washington, ♂ no. 50738, photos USNM Bee Collection website; male lacks head and metasoma, terminalia dissected but in poor condition, hard to recognize.

Hylaeus lightfooti Bridwell : 1919: Cockerell 1932e: 171; Cockerell 1936e: 6; Cockerell 1942: 2; Eardley & Urban 2010: 31.

Prosopis lightfooti (Bridwell) : Cockerell 1936p: 633.

Hylaeus (Deranchylaeus) lightfooti Bridwell : Snelling 1985: 8.

Hylaeus absonulus Cockerell, 1936e: 2 , 9. ♂. South Africa: Cape Province, George. Typus ♂ AMNH New York, ac.34242.— Cockerell 1942: 2; Eardley & Urban 2010: 26.— Syn. n.

Hylaeus (Deranchylaeus) absonulus Cockerell : Snelling 1985: 8.

Hylaeus reditus Cockerell 1936e: 6 . ♀. South Africa: Natal, National Park; Cape Province, Lady Grey. Typus ♀ AMNH New York, ac. 34187.— Syn. n.— Cockerell 1942: 2, 14–15; Eardley & Urban 2010: 34.

Hylaeus (Deranchylaeus) reditus Cockerell : Snelling 1985: 8.

Diagnosis

This species has striking white pilosity, the propodeum is rounded with weak sculpture and is slightly shining. The male has a black supraclypeal area and the scapi are expanded apically. The female has a glossy impression on the anterior clypeal margin.

Characteristic features

Male. TL 4.4–5.5 (4.98) mm, WL 2.9–3.6 (3.27) mm.

Head. Proportions HL:HW 1.00, UFW:LFW 1.67, outline trapezoid. Scapi black, matt, apically expanded, wider than flagella, SL:SW 1.7; flagella relatively short, yellow below, dark above; mask ivory white to yellow, slightly shining, supraclypeal area black. Clypeus CL:CW 1.75, scattered punctate, anterior margin black; frons and vertex with strong subcontiguous punctation.

Mesosoma. Pilosity pronounced, white, spreading, particularly below, but also on dorsal surfaces. Tegulae with bright spots. Pronotum black, narrow expanded forward, front edge sharp medially, sides and dorsolateral angles rounded. Mesonotum and scutellum silky shining, punctation moderately close. Legs black, bases of tibiae, foretibiae in front and basitarsi bright, tarsi otherwise brown; wings darkened, venation brown. Propodeum rounded, matt, also basally sloped; medial area not delimited by a carina, separated only by a different sculpture, with fine longitudinal ridges; terminal area punctate.

Metasoma spindle-shaped, black. T1 with moderate dense punctation, margin without punctures, T2 more dense and fine punctate; T1 with narrow white lateral fringes. Terminalia ( Fig. 25 ): genital capsule with prolonged and sharpened gonoforcipes, penis valves narrow, S8 characteristic: apical lobi with lace, base expanded, S7 apical lobi broadened, basal lobi with 4 comb bristles.

Female. TL 4.8–6.0 (5.39) mm, WL 3.5–4.1 (3.78) mm.

Head. Proportions HL:HW 0.96, UFW:LFW 1.47, outline trapezoid. Face with short ivory white lines at orbits on level of scapi bases; foveae faciales short. Clypeus CL:CW 1.32, shagreen, slightly shining, punctation moderate, sparse to close, punctures sharp; with apical impression ( Fig. 45 ); frons and vertex stout, with moderate, subcontiguous punctation.

Mesosoma. Pilosity less conspicuous than in male; tegulae with white spots. Pronotum black, narrow expanded forward, anterior margin and dorsolateral angles rounded. Mesonotum and scutellum shagreen, matt, punctation moderate, close to dense. Legs entirely black. Propodeum rounded, as in male finely sculptured, matt.

Metasoma compact, black. T1 silky shining, punctation moderate, dense to subcontiguous, T2 significantly finer punctate, punctation on following terga microscopic; T1 with narrow white lateral fringes, following terga with white widely interrupted marginal bands on depressions.

Distribution

South Africa ( Eardley & Urban 2010); Zimbabwe.

Specimens examined: 23 ♂ 36 ♀ coll. AMG, OLBL, SAMC, SANC, SDEI, USNM.

SOUTH AFRICA. Eastern Cape: East London NE, Kei Mouth; Grahamstown; Grahamstown, Bathurst; Grahamstown, Faraway Farm, 33.19S 26.31E; Grahamstown, G. Bainest; Grahamstown, Hilton; Grahamstown, Strowan; Kubusi State Forest, roadside 9.5 km WNW Stutterheim, 32.33S 27.20E, ca. 1000 m; Lady Grey; Mkhambathi Nature Reserve, 31.2641S 29.9578E.— Free State: Amattam Farm nr. Clarens., 28.32S 28.28E; Golden Gate National Park.— Gauteng: Pretoria, Faerie Glen Koppies, 25.46S 28.17E.— KwaZulu-Natal: Garden Castle, 29.74500S 29.21105E; Greytown 20 km N, 28.58S 30.34E, 1140 m; Giants Castle; Royal Natal National Park.— Mpumalanga: Bergvliet Forest Res. Sabie, 25.05S 30.54E; Lydenbrug 30 km NE, NR Ohrig; Nelspruit 20 km NW; Waterval Boven.— North West: Rustenburg Nature Reserve, 25.40S 27.12E.— Western Cape: Bains Kloof Pass (southern end); Cape Town; Cape Town, above Tokai Forest, Constantiaberge above Donkerboskloof, 460 m; George.

ZIMBABWE. Harare.

Figures

FIGURES 23–25. Male terminalia in species of dregei-group.—23 H. dregei (Strand) (typus).—24 H. haygoodi Bridwell.—25 H. lightfooti Bridwell.

FIGURES 44–45. Impression on anterior part of female clypeus.—44 H. haygoodi Bridwell.—45 H. lightfooti Bridwell. Scale 0.2 mm.

FIGURES 98–101. H. (Deranchylaeus) lightfooti Bridwell: head in frontal view and surface structure of basal terga.—98, 99 Male.—100, 101 Female. Scale 0.5 mm.