Twenty six new species of Leioproctus (Colletellus): Australian Neopasiphaeinae, all but one with two submarginal cells (Hymenoptera, Colletidae, Leioproctus) Author Leijs, Remko Author Dorey, James Author Hogendoorn, Katja text ZooKeys 2018 811 109 168 http://dx.doi.org/10.3897/zookeys.811.28924 journal article http://dx.doi.org/10.3897/zookeys.811.28924 1313-2970-811-109 B49DF845B5D94EBB917DA975C221A4F5 B49DF845B5D94EBB917DA975C221A4F5 Leioproctus (Colletellus) laciniosus Leijs sp. n. Figures 2B, 19 A-M Specimens examined. (5♂, 3♀): Holotype female, Bon Bon Stn ( 30.7789S ; 135.3841E ), 26 Oct. 2010, Leijs, R., on Angianthus brachypappus , SAMA 32-033484, BOLD: AUSBS140-12/RL1673A. Allotype male, same locality data as holotype, SAMA 32-033486; BOLD: AUSBS143-12/RL1673B. Paratypes: female, SAMA 32-033483, BOLD: AUSBS141-12/RL1673C, male, SAMA 32-033485, BOLD: AUSBS142-12/RL1673D, same locality data as holo type ; female, Lake Wilson, 11 Sept 2015, SA, 26.0285S ; 129.6159E , P. Hudson; 3 males, Ooldea ( 30.8915S ; 132.0925E ), 03 Oct. 1968, Key, Upton, Balderson, ANIC 32-111874-6; Diagnosis. First recurrent vein meeting to the first submarginal cross vein, T2-4 with adpressed hair bands on posterior margins, female BTB rounded, inner hind tibial spur pectinate. Description. Female holotype: body length: 5.6 mm; head width: 1.9 mm. Relative head measurements: HW 50, ASD 2.6, AOD 8.3, HL 35, IAD 9.4, LFW 28, OAD 15, OOD 9.1, OW 17, UFW 33, HW/HL 1.4, LFW/UFW 0.8. Relative wing measurements: MSR 1.39, FSR 1.71, SFR 0.79. Structure: terga anteriorly not depressed; BTP rounded; BTP/tibial length ratio 0.22; inner hind tibial spur pectinate with 10 teeth. Sculpture: scutum smooth with sparse punctures; metapostnotum smooth, shiny, horizontal part shorter than vertical; T1 lineo-reticulate, T2-3 transverse lineo-reticulate; scape dull with microsculpture; clypeus shiny, openly punctate; supraclypeal area shiny, some punctures; labrum smooth; ocellocular area smooth, shiny; frons smooth openly punctate. Coloration: terga anteriorly brown-orange, posterior margins transparent white, T2-4 with white adpressed hair bands; scopa white; labrum orange clypeus with orange anterior rim; mandibles orange with black tip; scape brown; flagellum F1-3 black, F4-10 orange/brown below. Pubescence: scutum: dispersed, medium length, branched; scutellum: dispersed, medium length, branched; metanotum: medium length, branched, dense on posterior margin; S2-4 hair bands, long branched. Description. Male allotype: body length: 4.4 mm; headwidth: 1.6 mm. Relative head measurements: HW 50, ASD 2.4, AOD 6.6, HL 37, IAD 9.8, LFW 25, OAD 16, OOD 8.9, OW 17, UFW 33, HW/HL 1.4, LFW/UFW 0.8. Relative wing measurements: MSR 1.54, FSR 1.64, SFR 0.87. Structure: terga anteriorly not depressed; BTP rounded. S7: dorsal apical lobe absent, ventral apical lobe large, branched setae present on apico medial area of ventral apical lobe. Sculpture: scutum smooth with sparse punctures; metapostnotum shiny; T1 lineo-reticulate, T2-3 transverse lineo-reticulate; clypeus shiny, openly punctate; supraclypeal area shiny, openly to closely punctate; labrum; ocellocular area smooth, shiny, almost no punctures; frons smooth openly to sparsely punctate; vertex. coloration: terga anteriorly brown-orange, posterior margins transparent white; mandibles brown at base, orange medially with brown tip; flagellum F1-3 black, F4-11 orange/brown below. Pubescence: scutum: dispersed, medium length, branched; scutellum: dispersed, medium length, branched; metanotum: dispersed, medium length, branched; S2-4 with fringes of short hairs; scape shiny with medium length branched white hairs. Remarks. Four examined specimens have been DNA barcoded, accessible through the following links: http ://www.boldsystems.org/index.php/Public_RecordView?processid=AUSBS140-12 http://www.boldsystems.org/index.php/Public_RecordView?processid=AUSBS141-12 http://www.boldsystems.org/index.php/Public_RecordView?processid=AUSBS142-12 http://www.boldsystems.org/index.php/Public_RecordView?processid=AUSBS143-12 Flower records. Angianthus brachypappus ( Asteraceae ). Distribution. Figure 19F. Figure 19. Leioproctus (Colletellus) laciniosus Leijs, sp. n. ♀ holotype and ♂ allotype. Scale bar: 0.1 mm (K, M). Etymology. The specific epithet refers to fringe of white hairs on the posterior T2-4.