Satonius jaechi, Hájek, Jiří, Yoshitomi, Hiroyuki, Fikáček, Martin, Hayashi, Masakazu & Jia, Feng-Long, 2011

Hájek, Jiří, Yoshitomi, Hiroyuki, Fikáček, Martin, Hayashi, Masakazu & Jia, Feng-Long, 2011, Two new species of Satonius Endrödy-Younga from China and notes on the wing polymorphism of S. kurosawai Satô (Coleoptera: Myxophaga: Torridincolidae), Zootaxa 3016, pp. 51-62 : 53-56

Satonius jaechi sp. nov.

( Fig. 2 )

Satonius sp.: Jäch 1998: 51 (note).

Satonius sp. 1: Hájek & Fikáček 2008: 665 (note).

Type locality. China, Fujian province, Wuyi Shan Mts, Da’an, Upper Chongyang river, 27°57'32''N, 117°51'38''E, 444.5 m.

Type material. 63 specimens — Holotype: male ( SYSU): “ CHINA: Fujian, / Wuyishan, Da’An, Upper / Chongyang River, wet / cliff. Elev. 444.5m // 27°57'32''N, / 117°51'38''E / 15.7.2010 / Leg. F.L. Jia [printed]”. Paratypes: 62 specimens, same label data as holotype ( SYSU, NMPC, USNM); ♂: “ CHINA: FUJIAN, Chong’an / Wuyi Shan, 1 km W Wuyi Gong / 250m, 15.– 18.1.1997 / leg. Ji & Wang ( CWBS 240) [printed]” ( NHMW).

Diagnosis. Very small, broad and convex species; body length 1.2–1.4 mm, width 0.8–0.9 mm. Sides of pronotum slightly rounded, narrowly bordered. Lateral margin of elytra visible only in humeral part. We have studied metahoracic wings in 16 specimens, of which 15 are micropterous and only one macropterous.

Male genitalia. Median lobe of aedeagus with apical portion bent dorsad; paramere narrow, with four apical setae, basal portion with wide field of pores on lateral surface ( Fig. 2 ). We consider differences between presently figured specimen and specimen mentioned by Hájek & Fikáček (2008: Fig. 9 ) as an intraspecific variability. Bionomics. All specimens were collected on wet rocks with dense algae mats ( Figs 5–6 ), together with representatives of three genera of the family Hydrophilidae : Oocyclus , Enochrus and Coelostoma .

Distribution. So far known only from two close localities in Wuyi Shan Mts., Fukien province, China ( Fig. 7 ). Etymology. The new species is dedicated to our colleague Manfred A. Jäch (NHMW), a specialist on Hydraenidae and Dryopoidea.

Figures

FIGURE 7. Known distribution of Satonius species.

FIGURES 1 – 2. Aedeagus and details of parameres of Satonius in lateral view. 1 — S. fui sp. nov.; 2 — S. jaechi sp. nov. Scales: a—aedeagus; b—detail of paramere.

FIGURES 8 – 9. Habitus of Satonius kurosawai (Satô). 8 — macropterous form; 9 — micropterous form. Scale bar 0.5 mm.

FIGURES 5 – 6. Habitats of Satonius jaechi sp. nov. at the type locality Wuyi Shan Mts. (Fujian). Photos F. - L. Jia.