Hylaeus (Deranchylaeus) promontorii Meade-Waldo. Scale 1923
Creators: name: Dathe, Holger H.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Colletidae
Hylaeus
Hylaeus promontorii

description: Hylaeus (Deranchylaeus) promontorii Meade-Waldo, 1923
Figures 12, 37, 124–127
Prosopis longula Friese 1913a: 583. 1 ♂, Rhodesia [Zimbabwe]: Bulawayo. Typus ♂ MNHU Berlin.— Friese 1913b: 574; Alfken 1914: 192; Friese 1916: 425; Cockerell 1920: 306; Rasmussen & Ascher 2008: 66.
Hylaeus (Deranchylaeus) longulus (Friese): Bridwell 1919: 138, 146–147; Snelling 1985: 8 (as longula).
Hylaeus promontorii Meade-Waldo, 1923: nomen novum for Prosopis longula Friese, 1913 not Prosopis longula Pérez, 1903.— Eardley & Urban 2010: 34.
Hylaeus (Deranchylaeus) promontorii Meade-Waldo: Snelling 1985: 8.
Hylaeus rhodognathus Cockerell, 1936e: 4, 7–8. ♂, Belgian Congo [DR Congo]: S of Bukavu. Typus ♂ AMNH New York, ac. 34242.— Syn. n.— Cockerell 1942: 2; Eardley & Urban 2010: 34.
Hylaeus (Deranchylaeus) rhodognathus Cockerell: Snelling 1985: 8.
Diagnosis
This is one of the smallest Deranchylaeus species (together with H. xanthostoma and H. venustus). The fine sculpture and shield-like shape of the propodeum are diagnostic. The mask of the male and the mouth parts are pale yellow. It belongs to the curvicarinatus-group.
Characteristic features
Male. TL 3.4–4.8 (4.17) mm, WL 2.4–3.3 (2.86) mm.
Head. Proportions HL:HW 0.98, UFW:LFW 1.69, shape prolonged trapezoid. Scapi short cylindrical, apically with a light spot, SL:SW 1.7; flagella long, mostly pale yellow. Mask light yellow, complete, side patches reaching up to antenna bases, lower (or upper) half of supraclypeal area yellow. Clypeus CL:CW 1.49, slightly shining. Frons and vertex with moderate, close punctation, punctures shallow. Labrum and mandibles white.
Mesosoma. Pronotum with two yellow lines, calli and tegulae pale. Pronotum narrow; anterior margin lamellate, sharp toward corners, posterolateral angles blunt. Mesonotum and scutellum with moderate, close punctation. Legs black, except basis and top of tibiae, tarsi; wings hyalin, venation brown. Propodeum edged, terminal area sharp around, shield-like sublime, angles between terminal area and lateral area pointed, medial area with few longitudinal wrinkles.
Metasoma narrow spindle-shaped, black. Sculpture fine shagreen, silky shining, punctation of T1 minute, scattered, still recognizable. Terminalia (Fig. 12): genital capsule regularly oval in outline, S8 apically blunt, S7 basal lobi with 5 setae, of curvicarinatus type.
Female. TL 4.5–5.0 (4.81) mm, WL 2.8–3.8 (3.39) mm.
Head. Proportions HL:HW 0.98, UFW:LFW 1.49, outline nearly circular. Face with short bright lines near foveae. Clypeus CL:CW 1.43, sculpture Fig. 37.
Mesosoma. Coloration entirely black. Pronotum little expanded forward, edged in front, dorsolateral angles blunt. Mesonotum and scutellum slightly shining; mesopleurae only shallowly punctate, matt; propodeal terminal area with surrounding margin, ridge between lateral and terminal area not always very clear, otherwise as in male.
Metasoma slender spindle-shaped, black. T1 with narrow white bands on depressions broadly interrupted; sculpture otherwise as in male.
Distribution
South Africa, Zimbabwe (Eardley & Urban 2010); Democratic Republic of the Congo, Nigeria, Kenya, Mozambique.
Specimens examined: 149 ♂, 3 ♀ coll. AMG, MNHU, AMNH, OLBL, SANC, TMSA.
DEMOCRATIC REPUBLIC OF THE CONGO. S of Bukavu.
KENYA. Malindi 15 km S, 03.18S 40.00E; Sagala env.; Voi env., Tsavo.
MOZAMBIQUE. Manicata, Chimoio 70 km SE.
SOUTH AFRICA. Eastern Cape: Addo 20 km NE, 33.24S 25.56E, 400 m. — KwaZulu-Natal: Maputaland, eManguzi SW; Tembe Elephant Park, env. Jozini.
ZIMBABWE. Bulawayo; Masvingo 80 km E, Nyika.
Remarks
The male is rather abundant, however only a few females are hitherto known.
description: Published as part of 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), pp. 1-84 in Zootaxa 3874 (1) on pages 63-64, DOI: 10.11646/zootaxa.3874.1.1, http://zenodo.org/record/4948240