Hylaeus (Deranchylaeus) nottoni, Dathe, 2014

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 : 55

Hylaeus (Deranchylaeus) nottoni sp. n.

Figures 108–109

Diagnosis

This is one of the larger species with strong to moderate punctation and matt integument. It is similar to H. rugipunctus , but with the T2 distinctly more finely punctate than T1. The broad parts of tergal depressions have fine punctation only. The male is not known.

Description

Female. TL 5.6–6.6 (6.22) mm, WL 4.0–4.6 (4.39) mm.

Head. Proportions HL:HW 0.94, UFW:LFW 1.64, outline transversely rounded. Face with two, sometimes abridged, yellowish stripes on lower areas near orbits; foveae long, shiny. Clypeus black, CL:CW 1.19, shagreen, with distinct punctation, matt; upper part of supraclypeal area nearly circular, flat, with less elevated carinae. Frons and vertex with moderate to strong, dense punctation.

Mesosoma. Pronotum with yellowish band, bright spots on tegulae. Pronotum expanded forward, anterior margin edged, dorsolateral angles blunt. Mesonotum and scutellum matt, with moderate, dense punctation. Legs black; wings darkened, venation brown. Propodeum rounded, sloping from base; medial area roughly wrinkled, not marginate, delimited only by change in structure; lateral areas distinctly punctate; terminal area finely wrinkled, with sharp lateral edges only below.

Metasoma compact, coloration black. T1 finely shagreen, shining; punctation moderate, dense, partially running, towards the margin becoming finer up to minute; T2 distinctly finer punctate than T1, slightly shining; T1 with white lateral fringes, depressions of following terga with narrow felt band. Fringe of last sternum bright.

Type material: 9 ♀

Holotypus: ♀ SOUTH AFRICA. Eastern Cape: Katberg, 11.– 18.02.1933, R.E. Turner lg. (series no.7).—In coll. NHM London.

Paratypes: SOUTH AFRICA. Eastern Cape: Katberg 4000 ft. (ca. 1200 m), 14.– 26.11.1932, 1♀, R.E. Turner lg. (series no.7), Brit. Mus. 1932-577, paratypus of H. simulans Cockerell, 1942 . Grahamstown, 11.11.1958, 1♀, C. Jacot-Guillarmod, coll. AMG; 15.10.1953, 1♀, 03.12.1952, 1♀, E. McC.Callan lg., coll. AMG; 15.11.1964, 1♀, 04.12.1964, 1♀, D.J. Brothers lg. coll. AMG. Grahamstown, Botanical Gardens, 33.19S 26.31E, 23.12.1981, 1♀, P.G. Hawkes & P.M.C. Croeser lg., coll SAMC [SAM-HYM B014792]. Port Brown, 06.08.1918, 1♀, Miss Warton lg.—In coll. AMG, NHML, SANC, SDEI.

Derivatio nominis

This new species is dedicated Mr David G. Notton, Senior Curator of The Natural History Museum London.

Remarks

When Cockerell (1942: 14) described Hylaeus simulans as a new species from R.E. Turner’s "Series 7", he designated Mossel Bay (Cape Province, South Africa) as the type locality, but mentioning also an additional location, Katberg (Cape Province). The type series of H. simulans Ckll. is preserved in the London collection and consists of the holotype, type specimen no. 17.a.1404, and four paratypes which all originate from Mossel Bay, and there is one female paratypus from Katberg.

Recently D. Notton located in the NHML collection another female from Katberg, collected by R.E. Turner and obviously belonging to that Series 7, but without a name label. The two available females from Katberg, one of them a paratypus of H. simulans , are obviously specimens of an undescribed species. They differ from the H. simulans type series primarily by their round face and the fine punctation of T2. Although the tergite punctation varies among specimens of H. simulans [now H. rugipunctus (Alfken) ], the difference to the new species is substantial. Moreover it is striking that H. simulans was captured in March and April at sea level, while the new species was found in November at an altitude of 4000 feet (ca. 1200 m).

Figures

FIGURES 108–109. H. (Deranchylaeus) nottoni sp. n., female (typus): 108 head in frontal view, 109 surface structure of basal terga. Scale 0.5 mm.