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) aberrans Leijs sp. n. Figures 2C, 5 A-O Specimens examined. (1♂, 1♀): Female holotype: Bon Bon Stn ( 30.7789S ; 135.3841E ), 27 Oct. 2010, Leijs, R., on Angianthus brachypappus , SAMA 32-033494, BOLD: AUSBS124-12/RL1629A. Male allotype: Bon Bon Stn ( 30.7789S ; 135.3841E ), 27 Oct. 2010, Leijs, R., on Angianthus brachypappus , SAMA 32-033495, BOLD: AUSBS125-12/RL1629B. Diagnosis. Three submarginal cells, distinct posterior hair bands on T2-4. Description. Holotype, female, body length: 6.2 mm; head width: 2 mm. Relative head measurements: HW 50, ASD 2.7, AOD 8.5, HL 36, IAD 9.4, LFW 29, OAD 15, OOD 9.7, OW 17, UFW 35, HW/HL 1.4, LFW/UFW 0.8. Relative wing measurements: MSR 1.56, FSR 1.76, SFR 0.83. Structure: terga not depressed anteriorly; BTP rounded; BTP/tibial length ratio 0.2; inner hind tibial spur pectinate with 8 strong teeth. Sculpture: scutum smooth with sparse punctures; metapostnotum smooth, shiny, horizontal part as long as vertical; T1 lineo-reticulate, T2-3 transverse lineo-reticulate; clypeus shiny, openly punctate, orange anterior rim; supraclypeal area shiny, closely punctate; labrum smooth orange-brown; ocellocular area smooth, shiny; frons smooth openly to sparsely punctate; scape shiny, almost no punctures. Coloration: terga anterior brown-orange, posterior margins transparent white, T2-4 with white adpressed hair bands; scopa white; mandibles orange with brown tip; scape black, flagellum F1-3 black, F4-10 orange-brown below. Pubescence: scutum: dispersed, short, branched; scutellum: dispersed, short, branched; metanotum: dispersed, short, branched; T2-4 with hair bands, long, branched. Description. Allotype male, body length: 5.2 mm; head width: 1.8 mm. Relative head measurements: HW 50, ASD 3.5, AOD 7.6, HL 38, IAD 9.4, LFW 27, OAD 14, OOD 9.4, OW 19, UFW 36, HW/HL 1.3, LFW/UFW 0.8. Relative wing measurements: MSR 1.61, FSR 1.76, SFR 0.83. Structure: terga not depressed anteriorly; BTP rounded; flagellum F1-3 black, F4-10 brown below, shorter than wide; S7: dorsal apical lobe small, ventral apical lobe large, branched setae present on dorsal subcentral apical ridge and apical lobe of ventral apical lobe. Sculpture: scutum smooth with sparse punctures; metapostnotum smooth, shiny, horizontal part little shorter than vertical; T1 lineo-reticulate, T2-3 transverse lineo-reticulate; clypeus shiny, openly punctate, anterior rim orange; supraclypeal area shiny, closely punctate; ocellocular area smooth, shiny, almost no punctures; frons smooth openly to sparsely punctate. Coloration: terga anteriorly brown-orange; mandibles brown at base, orange medially with brown tip. Pubescence: scutum: dispersed, short, branched; scutellum: dispersed, short, branched; metanotum: dispersed, short, branched; S5 with dense hair band, short, branched, S2-4 erect and open hair band; scape black, shiny, almost no punctures. Remarks. Both examined specimens have been DNA barcoded, accessible through the following links: http://www.boldsystems.org/index.php/Public_RecordView?processid=AUSBS124-12 http://www.boldsystems.org/index.php/Public_RecordView?processid=AUSBS125-12 Flower records. Angianthus brachypappus ( Asteraceae ). Distribution . Figure 5O. Figure 5. Leioproctus (Colletellus) aberrans Leijs, sp. n. ♀ holotype and ♂ allotype. Scale bar: 0.1 mm (L, M, N). Etymology. The specific epithet ' aberrans ' refers to abnormal wing venation: this species has three submarginal cells instead of two (Fig. 2).