Lomechusa

Chen, Yong-Jie & Zhou, Hong-Zhang, 2007, Taxonomy of the myrmecophilous genus Lomechusa (Coleoptera: Staphylinidae: Aleocharinae: Lomechusini) from China, Zootaxa 1606, pp. 29-39: 31

publication ID

http://doi.org/ 10.5281/zenodo.178798

publication LSID

lsid:zoobank.org:pub:1FA8F686-EE68-4C9B-AF02-7A91888D3495

persistent identifier

http://treatment.plazi.org/id/65637775-FFA7-E91A-FF38-B19DFA0DFD97

treatment provided by

Plazi

scientific name

Lomechusa
status

 

Key to Chinese species of Lomechusa 

1 Antennomeres 4–10 moniliform (as in Fig. 1View FIGURE 1 g) .......................................................................................... 2

- Antennomeres 4–10 with truncate or oblique apex (as in Figs. 2View FIGURE 2 f, 3g)....................................................... 4

2 Lateral depressions of pronotum almost absent, disk of pronotum with sparse golden erect soft hairs........ ........................................................................................................................ L. parva  Chen & Zhou, n. sp.

- Lateral depressions of pronotum obvious, disk of pronotum without hairs ................................................ 3

3 Eyes with some short setae between facets, last antennomere almost as long as antennomeres 8–10 combined, the apical part of aedeagus in lateral view curved ( Fig. 4View FIGURE 4 c), spermatheca with a small loop in the middle ( Fig. 5View FIGURE 5 d) ........................................................................................... L  . elegans Chen & Zhou, n. sp.

- Eyes without setae between facets, last antennomere distinctly shorter than antennomeres 8–10 combined, the apical part of aedeagus in lateral view straight (Fig. 65 in Hlaváč 2005), spermatheca somewhat Wshaped (Fig. 64 in Hlaváč 2005) ................................................................................ L. barbarae  (Schilow)

4 Pronotum ( Fig. 2View FIGURE 2 b in this paper; Plate 2 C in Hlaváč 2005) strongly widened posteriorly, its anterior margin <0.85 times as wide as posterior margin, posterior pronotal angles protruding and acute ................... 5

- Pronotum (Fig. 3 f in this paper; Plate 4 in Hlaváč 2005) only slightly widened posteriorly, lateral margins parallel or slightly emarginated medially, anterior margin of pronotum> 0.9 times as wide as posterior margin, posterior pronotal angles rounded and obtuse ................................................................................ 6

5 Anterior margin of pronotum emarginated (Plate 2 C in Hlaváč 2005), antennomere 8 truncated at the apex, head with temple straight, the apical part of spermatheca almost folded together (Fig. 24 in Hlaváč 2005) ............................................................................................................................. L. kishimotoi  Hlaváč

- Anterior margin of pronotum straight ( Fig. 2View FIGURE 2 b), antennomere 8 oblique at the apex ( Fig. 2View FIGURE 2 f), head with temple constricted, the apical part of spermatheca curved ( Fig. 2View FIGURE 2 c) ..... L  . brevicornis Chen & Zhou, n. sp.

6 Antennomere 1 as long as last antennomere, all antennomeres without a row of stout setae at the apex, eye diameter observed from above distinctly shorter than temple length, the apical part of aedeagus in lateral view with some punctures (Fig. 61 in Hlaváč 2005) ................................................. L  . yunnanensis Hlaváč

- Antennomere 1 slightly shorter than last antennomere (Fig. 3g), each antennomere with a row of stout setae at the apex (Fig. 3g), eye diameter longer than temple length, the apical part of aedeagus in lateral view devoid of punctures (Fig. 3 c) .......................................................... L  . seticornis Chen & Zhou, n. sp..