Amaurodera species, FAUVEL, 1905
publication ID |
https://doi.org/ 10.21248/contrib.entomol.66.1.13-111 |
DOI |
https://doi.org/10.5281/zenodo.5879108 |
persistent identifier |
https://treatment.plazi.org/id/766F7C36-FFF5-FFAE-FF68-7036DD17FB2B |
treatment provided by |
Felipe |
scientific name |
Amaurodera species |
status |
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3.8.3. Key to the named Amaurodera species of Thailand
1. Body usually of dark coloration: forebody black; abdomen usually blackish, sometimes with tergite III slightly paler, rarely with reddish tergites III–IV; antennae with at least antennomeres III–VI usually blackish-brown to blackish, rarely paler. Head and pronotum without sexual dimorphism. ♂: median lobe of aedeagus as in ASSING (2003: figures 14–15 View Figs 1–26 ). ♀: proximal portion of spermathecal capsule conspicuously dilated ( ASSING 2003: figure 16 View Figs 1–26 ). Very variable and widespread species. ............................................................................................... kraepelini FAUVEL View in CoL
– Body usually of paler coloration: forebody mostly reddish to reddish-brown; abdomen with at least tergite III (sometimes except for the infuscate posterior margins) pale-reddish; antennae yellowish to brown. Head with or without sexual dimorphism. ♂: median lobe of aedeagus of different shape. ♀: proximal portion of spermathecal capsule not strongly dilated. .............................................................................................................................................. 2
2. Pronotum with numerous moderately long and more or less erect setae in antero-lateral portion. ♂: median lobe of aedeagus with very broad (ventral view) and strongly sinuate (lateral view) ventral process (YAN & LI 2015: figures 5B–C View Figs 1–26 ); apical lobe of paramere conspicuously long, more than half as long as basal portion of paramere. ♀: spermathecal capsula somewhat truncate proximally. ............................................................... yunnanensis PACE View in CoL
– Pronotum only with few long and erect setae anteriorly. Primary sexual characters different; apical lobe of paramere shorter than basal portion of paramere. ........................................................................................................................... 3
3. Head with sexual dimorphism, in male rather extensively impressed in median portion (e.g., Fig. 145 View Figs 144–159 ), without such an impression in female. Mostly smaller species; pronotum only in one species> 0.88 mm long. Abdominal tergites III and IV usually pale-reddish (rarely darker), usually not infuscate at posterior margins. Ventral process of aedeagus slender, more or less parallel-sided or subapically even dilated in ventral view. Spermatheca with distinctly delated distal portion and with large apical cuticular invagination. ........................................................... 4
– Head without sexual dimorphism, impressed neither in male nor in female. Larger species; pronotum at least 0.88 mm long. Abdominal tergites III and IV mostly with more or less distinctly infuscate posterior margins. Ventral process of aedeagus basally broad, lateral margins converging apicad in ventral view. Spermatheca with weakly dilated distal portion and with small apical cuticular invagination. ............................................................... 8
4. Elytra with distinct microreticulation visible at a magnification of 40–50 x ( Fig. 129 View Figs 119–143 ). Ventral process of aedeagus ventro-medially with a pair of lateral angular projections ( Figs 391, 393–394 View Figs 379–395 ). ....................... reticulata View in CoL spec. nov.
– Elytra with indistinct traces of microreticulation visible only at high magnification (100 x). Ventral process of aedeagus of different shape. ............................................................................................................................................... 5
5. Smaller species, pronotum 0.70–0.80 mm long. ............................................................................................................. 6
– Larger species, pronotum 0.81–0.94 mm long. ............................................................................................................... 7
6. Legs uniformly yellowish. Median lobe of aedeagus smaller, <0.6 mm long ( Figs 389–390 View Figs 379–395 ). Spermatheca as in Fig. 395 View Figs 379–395 . ..................................................................................................................................................... gilvios View in CoL spec. nov.
– At least meso- and metafemora usually more or less distinctly infuscate apically. Median lobe of aedeagus larger,> 0.7 mm long, ventral process distinctly angled in the middle in lateral view ( Figs 396–397 View Figs 396–419 ). Spermatheca as in Figs 398–399 View Figs 396–419 . .......................................................................................................................................... dentata View in CoL spec. nov.
7. Smaller species; length of pronotum 0.81–0.87 mm. Eyes usually larger, approximately 0.7 times as long as distance from posterior margin of eye to posterior constriction of head ( Fig. 144 View Figs 144–159 ). Ventral process of aedeagus smoothly sinuate in lateral view ( Figs 405–409 View Figs 396–419 ). Spermatheca as in Fig. 410 View Figs 396–419 . .............................................. thailandensis PACE View in CoL
– Larger species; length of pronotum 0.88–0.94 mm. Eyes smaller, approximately half as long as distance from posterior margin of eye to posterior constriction of head. Ventral process of aedeagus more or less distinctly angular in lateral view ( Figs 400–402 View Figs 396–419 ). Spermatheca as in Figs 403–404 View Figs 396–419 . ................................................ parvoculata View in CoL spec. nov.
8. Ventral process of aedeagus strongly bulging in lateral view; crista apicalis larger ( Figs 411–412 View Figs 396–419 ). Spermatheca smaller and with shorter proximal portion ( Figs 413–414 View Figs 396–419 . .............................................................. fasciata View in CoL spec. nov.
– Ventral process of aedeagus weakly to moderately bulging in lateral view; crista apicalis smaller ( Figs 415–418 View Figs 396–419 ). Spermatheca larger and with longer proximal portion ( Fig. 419 View Figs 396–419 ). ........................................................ meorum PACE View in CoL
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Aleocharinae |
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Lomechusini |
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