Leioproctus (Colletellus) velutinellus Michener, 1965

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 : 153-155

Leioproctus (Colletellus) velutinellus Michener, 1965 Figure 31 A–N

Specimens examined.

(24♂, 7♀): Holotype female, Kojarena nr. Geraldton, West Australia, 6 Sep. 1926, Nicholdson, K95546, AM;

Allotype male, Gooseberry Hill (31.9541S; 116.0469E), 07 Oct. 1994, Houston, T.F., on Stylidium , WAM 14417;

Other specimens: 5 males, Gooseberry Hill (31.9541S; 116.0469E), 09 Oct. 1986, Houston, T.F., on Stylidium bulbiferum , WAM 12412-6; 3 males, 1 female, Gooseberry Hill (31.9541S; 116.0469E), 07 Oct. 1994, Houston, T.F., on Stylidium , WAM 14411,14-16; male, Gooseberry Hill (31.9541S; 116.0469E), 07 Oct. 1994, Houston, T.F., WAM 14418; female, Gooseberry Hill (31.9550S; 116.0489E), 15 Oct. 2009, Batley, M., on Stylidium bulbiferum , AM 359774; 3 females, 63 km NW of Perth (32.3536S; 116.3306E), 21 Nov. 1981, Howard, C.A. & Houston, T.F., on Stylidium near divaricatum & bulbiferum , WAM 12417-9; male, Glen Forrest (31.9111S; 116.0992E), 19 Sep. 1976, Postmus, S.M., WAM 12420; male, Garden Island (32.205S; 115.6733E), 12 Nov. 1975, Postmus, S.M., WAM 14419; female, Walyunga National Park (31.7213S; 116.0708E), 17 Oct. 1993, Houston, T.F., on Boronia , WAM 14420; male, Burma Road Nature Reserve (29.0000S; 115.0831E), 15 Sep. 1986, McMillan, R.P., WAM 22322; 11 males, Lesmurdie (32.0125S; 116.0328E), 14 Oct. 2009, Batley, M., on Stylidium bulbiferum , AM 359756 –63,66– 67, 361121.

Diagnosis.

Ocellocular area dull, minutely and very densely roughened, frons dull, minutely roughened, vertex dull, minutely roughened, metapostnotum slightly striate in lateral corners, terga with post gradular depressions, scutum covered with dense short brown pubescence.

Description.

Female WAM14415: body length: 5.9 mm; head width: 2 mm. Relative head measurements: HW 50, ASD 2.9, AOD 8.0, HL 35, IAD 10.0, LFW 29, OAD 13, OOD 10.6, OW 15, UFW 34, HW/HL 1.4, LFW/UFW 0.9. Relative wing measurements: MSR 1.33, FSR 1.08, SFR 0.93.

Structure: terga anteriorly depressed; BTP pointed, long; BTP/tibial length ratio 0.35; inner hind tibial spur ciliate with circa 22 little teeth.

Sculpture: scutum dull, densely punctate; metapostnotum shiny, with dense contiguous depressions, minutely striate in lateral corners; scape dull; T1 lineo-reticulate, T2-3 transverse lineo-reticulate; clypeus shiny, openly punctate, with micro depressions between punctures, ventral margin drawn into thin plate; supraclypeal area without punctures, only micro depressions; labrum smooth; ocellocular area dull, very dense micro roughened; frons dull, micro roughened; vertex dull, micro-roughened.

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

Pubescence: scutum: light brown, dense, short, branched; scutellum: dense, short, branched; metanotum: dense, short, branched; S1-4 with fringes of long branched hairs, S5 with dense fringe of hairs; scape with open medium length blond pubescence.

Description.

Male: body length: 5.4 mm; head width: 1.9 mm. Relative head measurements: HW 50, ASD 2.6, AOD 6.9, HL 36, IAD 11.4, LFW 26, OAD 12, OOD 10.0, OW 18, UFW 36, HW/HL 1.4, LFW/UFW 0.7. Relative wing measurement: MSR 1.39.

Structure: terga anteriorly depressed; BTP pointed; flagellum F1> F2, F1-3 wider than long, F4-11 slightly longer than wide. S7: dorsal apical lobe absent, ventral apical lobe large, branched setae present on dorsal subcentral apical ridge.

Sculpture: scutum dull, densely punctate; metapostnotum shiny, with dense contiguous depressions, slightly striate in lateral corners; scape short, dull; T1 lineo-reticulate, T2-3 transverse lineo-reticulate; clypeus dense fine punctate, large punctures only at margins; supraclypeal area openly to sparsely punctate with underlying dense fine punctures; ocellocular area dull, very dense micro-roughened; frons dull, micro-roughened.

Coloration: terga anteriorly black-brown; terga posterior margins transparent orange; mandibles black with brown tip.

Pubescence: scutum: dense, short, branched; scutellum: dense, short, branched; metanotum: dense, short, branched; scape with long pubescence.

Remarks.

The female of this species is redescribed based on specimen WAM 14415, however comparison with the holotype did not reveal differences. The male of the species is described here for the first time. While Michener (2007) mentioned that the male genitalia and hidden sterna were illustrated by Michener (1965), these images could not be found in the referred publication, which explicitly states that the subgenus is only known in the female.

Flower records.

Boronia ( Rutaceae ), Stylidium bulbiferum ( Stylidiaceae ), Stylidium nr divaricatum ( Stylidiaceae ), Stylidium sp. ( Stylidiaceae ).

Distribution.

Figure 31N.