Hylaeus (Deranchylaeus) curvicarinatus ( Cameron, 1905 )

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 : 34-35

Hylaeus (Deranchylaeus) curvicarinatus ( Cameron, 1905)

Figures 9 , 66–69

Prosopis curvicarinata Cameron, 1905: 234–235 . ♂, South Africa: Cape Colony, Pearston. 3 ♂ syntypes NHM London, no. 17.a.24 as lectotypus designated here.— Cameron 1906: 324–325; Friese 1909: 110, 112, 115; Friese 1911: 128, 132–133.

Hylaeus curvicarinatus (Cameron) : Cockerell 1932e: 172; Cockerell 1936e: 1–2, 7–9; Cockerell 1942: 2, 4, 9, 13.

Hylaeus (Deranchylaeus) curvicarinatus (Cameron) : Bridwell 1919: 136, 138, 141; Snelling 1985: 6, 8.

Prosopis flaviscutum Alfken, 1914: 193–194 . 2 ♀ 7 ♂. S-Afrika [ South Africa]: Kapland, Willowmore. 3 ♂ 1 ♀ syntypes MNHU Berlin, ♂ with labels "Willowmore 20.2.04 H. Brauns ","TYPUS", head lacking, terminalia prepared by HHD, as lectotypus designated here; paralectotypes 2 ♂ 1 ♀ same locality.— Syn. n.— Friese 1916: 426.

Hylaeus (Deranchylaeus) flaviscutum (Alfken) : Bridwell 1919: 143; Snelling 1985: 8.

Hylaeus flaviscutum (Alfken) : Cockerell 1932e: 171; Eardley & Urban 2010: 29.

Hylaeus graaffi Cockerell, 1936e: 2–3 . ♂, South Africa: Kapland, Graaff-Reinet. Typus ♂ AMNH New York ac.34187; genitalized by Snelling, sternum 7 lacking.— Syn. n. Cockerell 1942: 2; Eardley & Urban 2010: 30.

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

Hylaeus vau Cockerell, 1936e: 9 . ♂, South Africa: Mossel Bay. Typus ♂ NHM London, no. 17.a.1401. Synonymized by Cockerell 1942: 2, 4.

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

Diagnosis

This is a small species with strong punctation. The anterior margin of the pronotum is sharply lamellate. The male has a yellow-white mask that is complete, the scapi are slender and undifferentiated. The female has small commashaped spots at the orbits.

Characteristic features

Male. TL 4.0–5.0 (4.47) mm, WL 3.0–3.5 (3.12) mm.

Head. Proportions HL:HW 0.99, UFW:LFW 1.82; outline rounded trapezoid; scapi black, conical, not expanded, as wide as flagella, SL:SW 1.9; flagella long, yellow, above dark; mask ivory to pale yellow, complete. Clypeus CL:CW 1.47, slightly shining, with few punctures, front edge black. Supraclypeal area with only upper part black; frons and vertex with strong subcontiguous punctation. Labrum and mandibles black.

Mesosoma black, only tegulae with white spots. Pronotum black, narrowly expanded forward, midst with sharp anterior edge, dorsolateral angles obtuse, posterior margin with white felt fringe. Mesonotum and scutellum shining, punctation strong to coarse, subcontiguous to dense, legs black, only foretibiae in front bright striped. Propodeum angular, shining, medial area delimited by a fine carina, terminal area only below sharply edged.

Metasoma black. T1 smooth and shiny, punctation strong subcontiguous to dense, punctures finer than on mesonotum, T2 with small punctures, punctation of following terga disappeares increasingly in transverse rugose sculpture, white lateral fringes only at T1, indistinct. Terminalia ( Fig. 9 ): genital capsule compact, gonoforcipes apically bluntly rounded, shape characteristic for this species; proximal lobi of S7 with 3 or 4 comb bristles.

Female. TL 4.2–5.4 (5.03) mm, WL 3.2–3.8 (3.60) mm.

Head. Proportions HL:HW 1.00, UFW:LFW 1.61; shape rounded trapezoid. Face with white comma-shaped patches at orbits below foveae; foveae faciales long. Clypeus CL:CW 1.31, punctation moderately sparse to close, shallow; frons and vertex with punctures arranged in wrinkled stripes.

Mesosoma. Tegulae with bright spots. Pronotum as in male. Mesonotum and scutellum with coarse, subcontiguous punctation, slightly shining. Legs black, only foretibiae in front with pale stripe. Propodeum rounded, otherwise as in male; medial area limited by carina, terminal area sharply edged only below, medial furrow of propodeum shallow.

Metasoma compact spindle-shaped, black. Sculpture of terga similar to male; T1 with narrow lateral fringes, white terminal bands on depressions of T2.

Distribution

South Africa.

Specimens examined: 65 ♂, 59 ♀ coll. AMG, MNHU, NHML, OLBL, SAMC, SANC, TMSA, USNM.

SOUTH AFRICA. Eastern Cape: Algoa Bay; W of Bavianskloof, 33.33S 24.00E; Belmont Valley, Grahamstown; Bo Kouga, Uniondale Distr.; Boskey Dell, Grahamstown; Clifton, Grahamstown; February Farm, 40.2 km W Kirkwood, 33.33S 25.03E [♂ stylopized]; Fort Beaufort, "Umdala"; Graaff-Reinet; Grahamstown; Grahamstown, Boskey Dell; Hilton, Grahamstown; Jansenville 25 km N, 32.49S 24.44E, 600 m; Jeffreys Bay; Papiesfontein, Gamtoos Mth.; Pearston; Willowmore.— Free State: 3 km NW of Bethulie, 30.28.02S 25.57.35E, 1383 m.— Northern Cape, Hester Malan Nature Reserve, Springbok 16 km E.— Western Cape: Barrydale; Calitzdorp 3 km SE, 33.33S 21.42E; Elsenburg; Kango Mtn Resort, 33.31S 22.21E; Karoo National Park, Beaufort West, 32.20S 22.30E; Klaarstroom, Prince Albert; Ladismith; Laingsburg 60 km S, 33.29S 20.57E; Matjiesfontein; Mossel Bay; Oudtshoorn, Zebra; Uniondale S, Alfreds Pass, 33.49S 23.11E, 300 m; Vogelfontein P. Albert Div.

Remarks

The species appears to be relatively common, but its identity was also often misunderstood. In the collection and database of AMG this species is referred to as " Hylaeus (Deranchylaeus) sp. B" ( Gess & Gess 2014).

Figures

FIGURES 8–11. Male terminalia in species of curvicarinatus-group, subgroup (1).—8 H. alfkeni (Friese).—9 H. curvicarinatus (Cameron).—10 H. gessianus sp. n. (typus).—11 H. leucolippus (Friese) (typus). Scale 0.5 mm.

FIGURES 66–69. H. (Deranchylaeus) curvicarinatus (Cameron): head in frontal view and surface structure of basal terga.—66, 67 Male.—68, 69 Female. Scale 0.5 mm.