A taxonomic review of the genus Parancistrocerus Bequaert (Hymenoptera: Vespidae: Eumeninae) from the Indian subcontinent with the description of three new species
Creators: name: P. Girish Kumar
name: J. M. Carpenter
name: P. M. Sureshan
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy

description: <b>Genus <i>Parancistrocerus</i> Bequaert</b> <i>Parancistrocerus</i> Bequaert, 1925: 64, subgenus of <i>Ancistrocerus</i> Wesmael. Type species: <i>Odynerus fulvipes</i> de Saussure, 1855 [= <i>O</i>. <i>“flavipes</i> Fabricius” <i>sensu</i> de Saussure, 1852, <i>non Vespa flavipes</i> Fabricius, 1775], by original designation. <b>Diagnosis:</b> T2 smooth basally, forming acarinarium beneath apex of T1 that is often full of mites (often concealed, tergum should be bent backwards to expose acarinarium); anterior face of pronotum with two close set, deeply impressed fovea, which may be approximated; propodeum with submarginal carina produced into pointed lamella apically and valvula enlarged and free posteriorly from submarginal carina; metanotum without tubercles; forewing with second submarginal cell not petiolate; metasoma sessile. <b>Distribution:</b> Nearctic, Neotropical, Oriental and Palaearctic regions. <b>Key to species and subspecies of</b> <b> <i>Parancistrocerus</i> Bequaert from the Indian</b> <b>subcontinent</b> (Modified from Giordani Soika, 1994) 1. T2 with apical margin prolonged in middle (see Fig. 1 of Giordani Soika, 1972: 102 and Fig. 41 of Giordani Soika, 1994: 163)……………………………………...2 - T2 with apical margin normal, not prolonged in middle (Figs. 6, 12, 18, 27, 33 &amp; 39)…………………………………6 2. Superior carina of the propodeum well developed and distinct, especially at the top, where they clearly separate the horizontal dorsal face of the propodeum from the posterior face…… <i>P. capocacciai</i> <b>Giordani Soika</b> - Superior carina of propodeum not developed as above and irregular,no clear separation of dorsal and posterior surfaces of the propodeum………………………..3 3. Female unknown. Male: distance between clypeal teeth much shorter than basal width of clypeus, area between clypeal teeth more closely emarginate at apex; antennae with 11th article short, not longer than wide; apical antennal article very long, its apex reaches far beyond base of 11th article…………………….. <b> <i>P. irritatus</i> Giordani Soika</b> - Male: distance between clypeal teeth slightly less than basal width of clypeus, area between clypeal teeth broadly emarginate at apex; antennae with 11th article long, about 1.50x as long as wide; apical antennal article short, its apex reaches to or slightly beyond base of 11th article……………………... <b> <i>P. incorruptus</i> Giordani Soika</b> ………………………... 4 4. T1 mostly red-ferruginous………………5 - T1 not red-ferruginous…………...ssp. <b> <i>kalimpongensis</i> Giordani Soika</b> 5. Propodeum mostly red-ferruginous; T2 without apical yellow band…………...ssp. <b> <i>incorruptus</i> Giordani Soika</b> - Propodeum black; T2 with apical yellow band………………………………….ssp. <b> <i>demens</i> Giordani Soika</b> 6. T2 strongly reflexed at apex…………… ………...... <b> <i>P. assamensis</i> (Meade-Waldo)</b> - T2 not reflexed at apex………………….7 7. S2 strongly and sharply lowered at base then widely and almost entirely depressed………………………………...8 - S2 convex at base, very weakly depressed after……………………………………...9 8. Anterior face of T1 without median vertical carina on its upper half; clypeus of female more widely and deeply emarginate at apex…………... <b> <i>P. rhipheus</i> (Cameron)</b> - Anterior face of T1 with median vertical carina on its upper half (Fig. 11); clypeus of female more narrowly and less deeply emarginate at apex (Fig. 8)......................... …………….. <b> <i>P. holzschuhi</i> Gusenleitner</b> 9. Vertical anterior face of T1 about as long as, or even longer than dorsal horizontal face……………………………………..10 - Vertical anterior face of T1 distinctly shorter than dorsal horizontal face……..11 10. Width between apical teeth of clypeus equal to width between antennal sockets; upper carina of propodeum lamellate; punctures on T1 and T2 denser; markings on pronotum, mesopleuron, metanotum, T1, T2 and S2 ferruginous………… <b> <i>P. feai</i> Giordani Soika</b> - Width between apical teeth of clypeus less than width between antennal sockets (Fig. 29); upper carina of propodeum not lamellate (Fig. 32); punctures on T1 and T2 fine, superficial; markings on pronotum, mesopleuron, metanotum, T1, T2 and S2 yellow……………... <b> <i>P. turensis</i> Girish Kumar &amp; Carpenter sp. n.</b> 11. Dorsal face of propodeum absent mesally, not forming horizontal area behind midline of metanotum (Figs. 16 &amp; 38)………….12 - Dorsal face of propodeum forming horizontal area behind midline of metanotum (Figs. 5 &amp; 26)……………...13 12. T2 with almost regular apical yellow band, about 2 irregular rows of punctures at median area of yellow band; punctures on T2 larger than that of alternative species; T1 with narrow apical yellow band, about 2-3 irregular rows of punctures at yellow band; clypeus of female black with broad yellow band at base and apex…………….. ………………. <b> <i>P. vicinus</i> Giordani Soika</b> - T2 with wavy apical yellow band, about 4- 5 irregular rows of punctures at median area of yellow band; punctures on T2 smaller than that of alternative species; T1 with broad apical yellow band, about 4-6 irregular rows of punctures at yellow band; clypeus of female yellow except a brownish black spot at middle………….... …………….. <b> <i>P. jaferpaloti</i> Girish Kumar &amp; Carpenter sp. n.</b> 13. Occipital carina complete (Fig. 4); interspaces between punctures on mesopleuron and posterior portion of mesoscutum not carinate; body punctures less strong than that of alternative species; in female, cephalic fovea with a single deep pit………….. <b> <i>P. androcles androcles</i> (Meade-Waldo)</b> - Occipital carina not complete, evanescing at vertex (Fig. 25); interspaces between punctures on mesopleuron and posterior portion of mesoscutum carinate; body punctures stronger than that of alternative species; in female, cephalic fovea with two closely set pits………... <b> <i>P. loharbandensis</i> Girish Kumar &amp; Carpenter sp. n.</b>
description: Published as part of <i>P. Girish Kumar, J. M. Carpenter &amp; P. M. Sureshan, 2016, A taxonomic review of the genus Parancistrocerus Bequaert (Hymenoptera: Vespidae: Eumeninae) from the Indian subcontinent with the description of three new species, pp. 36-156 in Halteres 7 (1)</i> on pages 137-138, DOI: 10.5281/zenodo.192283
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