Labidostomis (Labidostomis) kantneri Warchałowski, 2004

Bezděk, Jan, 2018, Revision of Labidostomis (Coleoptera: Chrysomelidae: Cryptocephalinae: Clytrini) with large united elytral spot from Iran and adjacent countries, Zootaxa 4457 (4), pp. 501-519: 505-507

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Labidostomis (Labidostomis) kantneri Warchałowski, 2004


Labidostomis (Labidostomis) kantneri Warchałowski, 2004 

( Figs 2 View Figure , 8 View Figure , 14 View Figure , 20 View Figure , 30–31 View Figure )

Labidostomis kantneri Warchałowski, 2004: 558  (original description); Regalin & Medvedev 2010: 571 (catalogue); Warchałowski 2010: 80 (key).

Type locality. “ Iran Fars Prov., Zagros mts. , 4 km S. Dasht-E-Arzhan, 29°34’N 51°56’E ”.GoogleMaps 

Types examined. Paratypes: 3 ♂♂, “Iran, 21.–22.iv.2000 / Fars Prov., Zagros Mts. / 4 km S Dasht-e-Arzhan / (29°34´N, 51°56´E), 2000 m [w, p] // Iran 2000 Czech Biological / Expedition / J. Hájek & M. Mikát lgt. [w, p] // Labidostomis  / kantneri  mihi / det. A. Warchalowski [w, p] // Paratypus [r, p]” (JBCB); 3 ♂♂ 5 ♀♀, “S IRAN, prov. Fars / 11 km W Dašt-e-Aržan / (W Širaaz) 1.V.2002 / lgt. S. Kadlec [w, p] // coll. F. Kantner / Lipí—CZ [w, p] // Labidostomis  / kantneri  mihi / det. A. Warchalowski [w, p] // Paratypus [r, p]” (NMPC); 1 ♂ 1 ♀, “S IRAN, prov. Fars / 11 km W Dašt-e-Aržan / (W Širaaz) 1.V.2002 / lgt. S. Kadlec [w, p] // Labidostomis  / kantneri  mihi / det. A. Warchalowski [w, p] // Paratypus [r, p] // České Budějovice / coll. F. Kantner / Czech Republic [w, p]” (NMPC).

Additional material examined. 8 specimens — IRAN: Fars prov.: 15 km S of Dasht Arjan , 2261 m, 2.– 6. v.2016, 2 ♂♂ 2 ♀♀, M. Obořil leg. ( BMNH)  ; 7 km SW of Dasht Arjan , 29°38´10.5´´N 51°55´01´´E, 2100 m, 5. v.2016, 1 ♀, D. Frank leg. ( DFCP); Dash-e Arzhan, oak nature reserve, 29°34´02´´N 51°56´44´´E, 2100–2300 m, 28. iv.2010, 1 ♂, A. Skale leg. ( FFCJ); Dasht-e Arzhan, oak nature reserve, 29°34´02´´N 51°56´44´´E, 2100–2300 m, 29. iv.2010, 1 ♀, A. Weigel leg. ( NMEGAbout NMEG)GoogleMaps  ; 15 km E of Dasht Arjan , 29°33´23.44´´N 51°56´45.47´´E, 2195–2213 m, 27.–29. v.2015, 1 ♂, M. Obořil leg. ( JBCB).GoogleMaps 

Diagnostic characters. Body length: ♂♂ 6.0–6.5 mm; ♀♀ 4.6–6.2 mm.

Colouration. Labrum yellow. Elytra with small black humeral spot and large united discal spot with anterior margin oblique and slightly concave, anterior tip not reaching scutellum ( Figs 30–31 View Figure ).

Head ( Fig. 14 View Figure ) with large frontal impression covered with large punctures and horizontal wrinkles. Anterior clypeal processes very large, robust, with inner margins angulated and with apical tips shortly rounded, clypeal margin between processes pointed in middle. Mandibles moderately wide, with sharp dorsal keel. Only inner slopes of mandibles visible in dorsal view.

Aedeagus ( Fig. 2 View Figure ) with apical part triangular with straight margins and obtuse tip. Dorsal median impression with thin median keel, lateral sides parallel, convergent posteriorly. Apex of aedeagus with inward triangular crooked folds. Operculum semicircular. Non-everted anterior sclerite visible as long thin median process. Ventrally with two elongate impressions and wide obtuse median keel.

Everted aedeagus ( Fig. 20 View Figure ). Ejaculatory guide formed by two ear-like plates.

Spermatheca ( Fig. 8 View Figure ). Vasculum widely round, apical part slightly narrower than basal part, moderately convergent with round apex, basal part distinctly wider. Bulbus subtubular. Ductus spermathecae ca three times as long as vasculum, coiled in whole lenght.

Distribution. Iran (Fars province, known only from the vicinity of Dasht-e Arjan).

Differential diagnosis. Labidostomis kantneri  is characterised by long and wide clypeal processes contrary to shorter and narrower ones in L. shirazica  ( Figs 14, 17 View Figure ). Ventral side of aedeagus with elongate shallow impressions in L. kantneri  while with smaller impressions in L. shirazica  ( Figs 2, 5 View Figure ). The ejaculatory guide is of same shape as in both L. kantneri  and L. shirazica  ( Figs 20 View Figure , 24 View Figure ). The females of L. kantneri  have slightly longer ductus spermathecae with ca 20 small simple coils while ductus of L. shirazica  is shorter and straight without any coils ( Figs 8, 11 View Figure ).

Comments. Because the structure of ejaculatory guide in both L. kantneri  and L. shirazica  is almost the same, I cannot exclude that L. kantneri  is only local form of L. shirazica  . The known localities of both taxa ( Fig. 43 View Figure ) show that L. kantneri  occurs in a very small area around Dasht-e Arjan (Fars prov.) close to the large distributional area of L. shirazica  . However, there are additional constant characters to differ both taxa like the shapes of clypeal processes or of ductus spermathecae. More specimens to study are necessary to definitely resolve the status of both taxa. At the moment I treat both of them as separate species.
















Labidostomis (Labidostomis) kantneri Warchałowski, 2004

Bezděk, Jan 2018


Labidostomis kantneri Warchałowski, 2004 : 558

Warchałowski, 2004 : 558 Regalin & Medvedev 2010 : 571 Warchałowski 2010 : 80