Leioproctus (Colletellus) bidentatus Leijs

Leijs, Remko, Dorey, James & Hogendoorn, Katja, 2018, Twenty six new species of Leioproctus (Colletellus): Australian Neopasiphaeinae, all but one with two submarginal cells (Hymenoptera, Colletidae, Leioproctus), ZooKeys 811, pp. 109-168 : 129-130

Leioproctus (Colletellus) bidentatus Leijs sp. n. Figure 13 A–N

Specimens examined.

(8♂, 9♀): Holotype female, Gooseberry Hill (31.9541S; 116.0469E), 07 Oct. 1994, Houston, T.F., on Verticordia acerosa , WAM 14412.

Allotype male, Cockleshell Gully (30.15S; 115.10E), 23 Sep. 1998, Houston, T.F., on Stylidium , WAM 20312.

Paratypes: 2 males, Cockleshell Gully (30.15S; 115.10E), 23 Sep. 1998, Houston, T.F., on Stylidium , WAM 20311, WAM 20313; male, Peak Charles National Park (32.8833S; 121.1608E), 18 Oct. 1985, Houston, T.F., on Thryptomene ?, WAM 12400; male, Gooseberry Hill (31.9541S; 116.0469E), 07 Oct. 1994, Houston, T.F., on Verticordia acerosa , WAM 14413; female, Arrowsmith River (29.6166S; 115.2881E), 03 Oct. 1997, Houston, T.F., on Thysanotus , WAM 19107; male, Mcdermid Rock (32.0222S 120.7339E), 27 Sep 1978, Houston, T.F., et al., on Leptospermum erubescens , WAM 19114; male, female, Lesmurdie (32.1300S; 116.0328E), 14 Oct. 2009, Batley, M., on Stylidium bulbiferum , AM 359765, 359755; 2 females, Yallingup (33.6938S; 115.0358E), 20 Oct. 1983, Stoutamire, W.P., on Agrostocrinum , WAM 12381-2; 2 males, 3 females, Boorabbin Rock (31.2036S; 120.2856E), 04 Oct 1981, Houston, T.F., on Baeckea , WAM 12394-7, WAM 14421; male, Boorabbin Rock (31.2036S; 120.2856E), 04 Oct. 1981, Houston, T.F., on Thryptomene australis , WAM 12398; female, Eneabba (29.8213S; 115.2692E), 04 Oct. 1985, McMillan, R.P., on Thryptomene , WAM 12399.

Diagnosis.

Clypeus of female with two small teeth at ventral margin, ocellocular area and clypeus smooth with open punctation, metapostnotum dull micro-alveolate. Male terga anteriorly strongly depressed, S7 ventral apical lobe large, branched setae present on dorsal subcentral apical ridge.

Description.

Female holotype: 6.6 mm; head width: 2.3 mm. Relative head measurements: HW 50, ASD 2.7, AOD 8.6, HL 35, IAD 10.5, LFW 29, OAD 14, OOD 10.6, OW 15, UFW 36, HW/HL 1.4, LFW/UFW 0.8. Relative wing measurement: MSR 1.26.

Structure: terga anteriorly little depressed; BTP pointed, long; BTP/tibial length ratio 0.33; inner hind tibial spur ciliate with circa 18 little teeth.

Sculpture: scutum smooth openly punctate; metapostnotum microalveolate, striate in lateral corners; T1 lineo-reticulate, T2-3 transverse lineo-reticulate; clypeus shiny, openly punctate, smooth between punctures, ventral margin drawn in thin plate with two teeth; supraclypeal area smooth, shiny; labrum smooth; ocellocular area smooth openly punctate; frons densely punctate; vertex roughened with punctures; scape dullish openly coarsely punctate.

Coloration: terga anteriorly dark, posterior margins transparent orange; scopa brown; mandibles black with brown tip; flagellum F1-3 black, F4-10 orange/brown below.

Pubescence: scutum: medium length, open; scutellum: medium length, open; metanotum: medium length, open; sterna 1-5 with fringes of long simple hairs, S5 not dense; scape with medium length grey pubescence.

Description.

Male allotype: body length: 5.8 mm; head width: 2.1 mm. Relative head measurements: HW 50, ASD 2.4, AOD 6.1, HL 36, IAD 10.2, LFW 26, OAD 15, OOD 11.9, OW 15, UFW 36, HW/HL 1.4, LFW/UFW 0.7. Relative wing measurements: MSR 1.26, FSR 1.08, SFR 0.69.

Structure: terga anteriorly strongly depressed; BTP pointed; flagellum F4-11 slightly longer than wide. S7: dorsal apical lobe absent, ventral apical lobe large, branched setae present on dorsal subcentral apical ridge; scape short.

Sculpture: scutum smooth openly punctate; metapostnotum dull, alveolate and striate in lateral corners; T1 lineo-reticulate, T2-3 transverse lineo-reticulate; clypeus shiny, openly punctate with smooth interspaces; supraclypeal area smooth, shiny; ocellocular area shiny, with open to sparse punctures; frons shiny, densely punctate; scape dull.

Coloration: terga anteriorly orange, posterior margins transparent orange; mandibles black with brown tip; flagellum black; scape black.

Pubescence: scutum: medium length, open; scutellum: medium length, open; metanotum: medium length, open; scape with long pubescence.

Flower records.

Agrostocrinum sp. ( Hemerocallidaceae ), Baeckea sp. ( Myrtacea ), Leptospermum erubescens ( Myrtacea ), Stylidium bulbiferum , Stylidium sp. ( Stylidiaceae ), Thryptomene australis ( Myrtacea ), Thysanotus sp. ( Asparagaceae ), Verticordia acerosa ( Myrtacea ).

Distribution.

Figure 13J.

Etymology.

The specific epithet refers to the two teeth on the ventral margin of the clypeus.