Urytalpa
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publication ID |
https://doi.org/ 10.11646/zootaxa.2160.1.2 |
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persistent identifier |
https://treatment.plazi.org/id/D75E2A4D-8117-FFDF-FF01-FB53FA1C6737 |
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treatment provided by |
Felipe |
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scientific name |
Urytalpa |
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Key to males of Urytalpa View in CoL View at ENA
The key is partly compiled from different partial keys by Zaitzev (1994), Uesugi (2004) and Bechev & Koç (2008), but we put more focus on the male terminalia. Hence, we exclude Urytalpa maritima from the key since its terminalia has not been illustrated and the holotype has lost its abdomen (see Bechev & Koç 2008).
1. Tergite IX prolonged caudally into large, broad lateral lobes, strongly setose on medial side (cf. Fig. 8A View FIGURE 8 ); aedeagal apparatus not more than twice as long as segment IX ................................................................................................. 2
- Tergite IX smaller, at most with narrow and less setose, digitate projections (cf. Fig. 5C View FIGURE 5 ) or retracted, incurved lobes; aedeagal apparatus of variable length .......................................................................................................................... 3
2. Thin, slender species with long antenna ( Fig. 2D View FIGURE 2 ), second flagellomere more than 2.5 times longer than broad ........ ...................................................................................................................................................... Urytalpa macrocera View in CoL
- Less slender species, second flagellomere at most twice as long as broad ................................................................... ................................................................................................................ Urytalpa attenuata Zaitzev & Menzel, 1996 View in CoL
3. Gonocoxites completely separated ventromedially by a membranous area (cf. Fig. 7A View FIGURE 7 ) .......................................... 4
- Gonocoxites connected by a narrow, sclerotized strip (H-shaped, cf. Fig. 10A View FIGURE 10 ) or solidly fused medially (wide subrectangular, cf. Fig. 9A View FIGURE 9 ) .............................................................................................................................................. 8
4. Large, L-shaped projection separately situated laterally between tergite IX and gonocoxites ( Uesugi 2004: figs 1A–D) .................................................................................................................. Urytalpa crassicauda Uesugi, 2004 View in CoL
- Without such separately situated, L-shaped projection ............................................................................................... 5
5. Mouthparts slightly elongated (cf. Uesugi 2004: fig. 4F); gonocoxites without digitate process .............................. 6
- Mouthparts not elongated; gonocoxites apicolaterally with digitate process (cf. Fig. 7A View FIGURE 7 ) ........................................ 7
6. Anterior margin of tergite IX deeply emarginated, making tergite IX medially connected by a narrow strip only ( Chandler 1994: fig. 19) ...................................................................................... Urytalpa nussbaumi Chandler, 1994 View in CoL
- Tergite IX only shallowly emarginated anteriorly and broadly connected medially ( Uesugi 2004: fig. 4B) ................ ........................................................................................................................................................... Urytalpa yoshidai View in CoL
7. Apical process from gonocoxite long, club-shaped and gently incurved in ventral view ( Fig. 7A View FIGURE 7 ); tergite IX concave, with deeply u-shaped posterior edge ( Fig. 7B View FIGURE 7 ); gonostylus with plain digitate projection apically ( Fig. 7D View FIGURE 7 ) .............. .................................................................................................................................................. Urytalpa galdes View in CoL , sp. n.
- Apical process from gonocoxite shorter, parallel sided and straight in ventral view; tergite IX convex, without deeply u-shaped posterior edge; gonostylus with characteristic hoe-shaped projection subapically ( Bechev & Koç 2008: figs 16–19) ............................................................................................................................ Urytalpa chandleri View in CoL
8. Gonostylus small (cf. Fig. 6D View FIGURE 6 ), shorter than sternite IX and usually retracted into gonocoxites (cf. Fig. 6A View FIGURE 6 ); gonocoxites fused, H-shaped by narrow bridge medially; aedeagal apparatus more than twice as long as segment IX (cf. Fig. 5A View FIGURE 5 ) ....................................................................................................................................................................... 9
- Gonostylus larger (cf. Fig. 9D View FIGURE 9 ), longer than sternite IX and exposed and distinctly bifurcated in lateral view (cf. Fig. 9C View FIGURE 9 ); gonocoxites fused, wide subrectangular with broad bridge medially; aedeagal apparatus less than twice as long as segment IX (cf. Fig. 9A View FIGURE 9 ) ....................................................................................................................................... 13
9. Abdomen distinctly petiolated and laterally compressed ( Fig. 2A View FIGURE 2 ) due to a huge vertically oriented aedeagal plate internally ( Fig. 6C View FIGURE 6 ) .................................................................................................................................................... 10
- Abdomen subcircular in cross section, not distinctly petiolated nor laterally compressed; internal aedeagal plate long, but more narrow ............................................................................................................................................... 11
10. Head dark, thorax with dark brown thoracic stripes ......................................................................... Urytalpa dorsalis View in CoL
- Head and thorax yellow ......................................................................... Urytalpa corniculata ( Ostroverkhova, 1979)
11. Gonocoxites with mesially directed, incurved projection ventrad of the gonostylus, projection with row of 5–6 strong setae ventrally ( Fig. 10A View FIGURE 10 ); tergite IX without projections .................................................... Urytalpa trivittata View in CoL
- Gonocoxites without such projection ventrad of the gonostylus, projection situated laterad of the gonostylus and slightly diverging ....................................................................................................................................................... 12
12 Tergite IX with broad, incurved projection curving mesially under proctiger and cerci; gonostylus small, digitate ( Uesugi 2004: figs 2A–F) .......................................................................................................... Urytalpa sapporoensis
- Tergite IX with narrow, digitate, straight projection apically ( Figs 5B–C View FIGURE 5 ); gonostylus larger, with brush of strong setae on basal projection ( Fig. 5D View FIGURE 5 ) ..................................................................................................... Urytalpa atriceps
13 Gonocoxal bridge constricted medially making apical margin between base of gonostyles widely u-shaped ( Fig. 9A View FIGURE 9 ) .............................................................................................................................................................. Urytalpa nigrita View in CoL
- Gonocoxal bridge not constricted medially, apical margin between base of gonostyles straight ( Chandler 1995: fig. 1) ................................................................................................................................................... Urytalpa rhapsodica View in CoL
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