Hercostomus, Loew, 1857
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publication ID |
https://doi.org/ 10.11646/zootaxa.5446.2.2 |
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publication LSID |
lsid:zoobank.org:pub:B1B73538-4AD4-4E0B-843F-74411F6E9AB3 |
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DOI |
https://doi.org/10.5281/zenodo.11110127 |
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persistent identifier |
https://treatment.plazi.org/id/03FE4B3B-7B59-FF99-FF03-5560FA7B7A54 |
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treatment provided by |
Plazi |
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scientific name |
Hercostomus |
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Key to male Hercostomus View in CoL sensu lato from mangroves in Southeast Asia
(after Zhang et al. 2008)
1 Wing with grey to brown pterostigma at tip R 1; R 4+5 thickened from basal quarter onwards ( Fig. 13 View FIGURE 13 ).................... 2
- Wing lacking stigma at tip R 1; R 4+5 not thickened............................................................ 3
2 Pterostigma elongate, extending beyond start of thickening of vein R 4+5 ( Fig. 13 View FIGURE 13 ); knee of hind femur darkened above ( Figs 13 View FIGURE 13 , 14 View FIGURE 14 ); aedeagus with small denticle, in more basal position........................... H. lanceolatus Zhang et al., 2008
- Pterostigma shorter, reaching level of thickening of vein R 4+5; knee of hind femur not darkened above; aedeagus with larger denticle in more anteriad position................................................. H. limosus Zhang et al., 2008
3 First flagellomere distinctly elongated, at least 2.0 times as long as wide ( Figs 1 View FIGURE 1 , 10 View FIGURE 10 )............................... 4
- First flagellomere not elongated, at most 1.6 times as long as wide.............................................. 7
4 First flagellomere with blunt tip.......................................... H. obtusus Samoh & Grootaert sp. nov.
- First flagellomere with pointed tip ( Fig. 10 View FIGURE 10 )................................................................ 5
5 First flagellomere 2.3 times as long as wide ( Fig. 4 View FIGURE 4 ); all coxae blackish; femora blackish except tip of fore and mid femora; cercus with at least 3 strong bristles on outer margin......................................................... 6
- First flagellomere 3.0 times as long as wide; fore coxa yellow, mid and hind coxae brown, femora yellow; cercus without strong bristles on outer margin.......................................................... H. meieri Zhang et al., 2008
6 Hind femur with two long ventral bristles at base of hind femur, nearly as long as femur is deep; cercus with only three strong, black squamiform bristles on outer margin..................................... H. brevidigitalis Zhang et al., 2008
- Hind femur without long ventral bristles at base; cercus with seven strong, black squamiform bristles along outer margin.................................................................... H. squamatus Samoh & Grootaert sp. nov.
7 First flagellomere as long as wide ( Fig. 8 View FIGURE 8 )................................................................. 8
- First flagellomere longer than wide: 1.3–1.6 x as long as wide................................................. 9
8 Fore coxae yellow, mid and hind coxae black; cercus triangular; aedeagus with strong subapical tooth............................................................................................ H. tiomanensis Zhang et al., 2007 View in CoL
- All coxae yellow, mid coxae at most pale brownish with black anterior stripe; cercus strongly curved, almost geniculate; aedeagus with long slender tip, with 2 inner denticles.............................. H. brevicornis Zhang et al., 2008 View in CoL
9 Fore tarsomere 1 shortened, concave ventrally with 2 long curved ventral bristles; mid tarsomere 1 concave ventrally, with 1 strong ventral bristle near middle and 5 short ventral bristles basally; cercus large, with short apical tail........................................................................................ H. singaporensis Zhang et al., 2008
- Fore tarsus unmodified ( Fig. 15 View FIGURE 15 ); cercus triangular, without apical tail................... H. plumatus Zhang et al., 2008
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.