Notoxus sodalis, Kejval, 2011

Kejval, Zbyněk, 2011, Taxonomic revision of the Oriental species of Notoxus (Coleoptera: Anthicidae), Acta Entomologica Musei Nationalis Pragae 51 (2), pp. 627-673 : 659-660

Notoxus sodalis sp. nov.

( Figs. 37–39 )

Type locality. Laos, Udomxay Province, Pak Beng, 19°53′37′′N, 101°07′51′′E, 450 m a.s.l.

Type material. HOLOTYPE: J, ‘ LAOS: S-UDOMXAI Prov. PAK BENG, 450 m N 19°53′37′′, E 101°07′51′′ 18–27.v.2001 JIŘÍ KOLIBÁČ leg.’ ( NHMB) . PARATYPES: 3 JJ, same data as holotype ( NHMB, ZKDC) ; 1 J, ‘ Laos, Oudom Xay prov. , MUANG PAKBENG env. 4.-8.v.2003 O. Šafránek lgt.’ ( ZKDC) ; 1 J, ‘ LAOS central, Saisombun zone PHOU KHAO KHOUAY Nat. Park TAD LEUK 18°23′N, 103°04′E 15.–21.V.2001, alt. 150–200 m E. Jendek & O. Šauša leg.’ ( ZKDC) .

Additional material examined. LAOS: UDOMXAY PROVINCE: 6 ♀♀, Pak Beng, 19°53′37′′N, 101°07′51′′E, 450 m, 18.–27.v.2001, J. Kolibáč leg. ( NHMB, ZKDC).

Description. Male (holotype). Body length 3.3 mm. Identical with N. suturalifer in most external and male characters (see below), differing only by detailed morphology of sternum VII ( Fig. 37 ) and aedeagus ( Figs. 38, 39 ).

Female (see Remarks). Externally differing from male by simply rounded elytral apices. Variation. Body length (J ♀) 3.1–3.3 mm.

Differential diagnosis. Notoxus sodalis sp. nov. is undoubtedly very close to N. suturalifer , as suggested by the similarity of the male characters. It differs from the latter species as follows: postero-lateral sides of male sternum VII simple (lacking distinct submarginal edges; cf. Figs. 37 versus 40), parameres of aedeagus with rather rounded apex and slight subapical lateral denticle in dorsal view, wider in basal half and rather rounded (not produced) at place of dorsal narrowing in lateral view (cf. Figs. 38, 39 versus 42, 43).

Etymology. From the Latin sodalis (companion, associate); named in reference to the overall similarity with the sympatric Notoxus suturalifer . Noun in apposition.

Distribution. Laos.

Remarks. The specimens of N. sodalis sp. nov. were collected in Pak Beng together with numerous specimens of N. suturalifer (see above).As I failed to find any substantial differences between females taken at this locality (including shape of styli), only males of N. sodalis sp. nov. were included in the type series. The six females listed above under additional material are tentatively associated with this species by their smaller size, and more extensive dark markings of the elytra.

Figures

Figs. 35–39. 35 – Notoxus safraneki sp. nov., aedeagus. 36 – N. sinensis Pic, 1907 (Xishan), aedeagus. 37–39 – N. sodalis sp. nov.: 37 – sternum VII; 38 – aedeagus in dorsal view; 39 – the same, lateral view. Scale (0.5 mm): A – Fig. 37; B – Figs. 38, 39; C – Figs. 35, 36.