Labidostomis (Labidostomis) shirazica Lopatin, 1979

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 : 511

Labidostomis (Labidostomis) shirazica Lopatin, 1979 , status restored

( Figs 5 , 11 , 17 , 24 , 38–40 )

Labidostomis shirazicus Lopatin, 1979: 586 (original description); Rapilly 1984b: 216; Warchałowski 2004: 557 (as synonym of luristanica ); Regalin & Medvedev 2010: 571 (catalogue, as synonym of luristanica ); Warchałowski 2010: 82 (as synonym of luristanica ).

Type locality. “S. Iran, about 150 km northwest of Shiraz, Gank-Tir ” [Isfahan prov., Tank-e Tir ].

Types examined. Holotype: ♂, “Süd—IRAN, 11.5.1974 / ca. 150 km nordwestlich / SHIRAZ, Tank—Tir / leg. Holzschuh & Ressl [w, p] // Holotypus [r, p] // Labidostomis / shirazicus sp. / n. [h] / det. I. Lopatin [w, p]” ( ZMAS).

Additional material examined. 144 specimens — IRAN: Fars prov.: 1 km W of Sangar , 2093 m, 4.– 5.v.2016 , 68 ♂♂ 44 ♀♀, M. Obořil leg. (BMNH, 4 ♂♂ 4 ♀♀ in JBCB); Zagros Mts., 13 km S of Yasuj , 30°32´50´´N 51°36´24´´E, 2100 m, 4. v.2016, 1 ♂, D. Frank leg. ( DFCP) ; 27 km E of Yasuj , 2650 m, 16. vi.1973, 1 ♀, Exp. Nat. Mus. Praha leg. ( NMPC) ; Qalat vill. env., 29°48´13´´N 52°19´11´´E, 2000–2150 m, 28. iv.2010, 1 ♂ 1 ♀, A. Weigel leg. ( NMEG) ; Qalat vill. env., 29°48´13´´N 52°19´11´´E, 2000–2150 m, 28. iv.2010, 1 ♂, A. Skale leg. ( FFCJ) ; Qalat vill. env., 29°48´13´´N 52°19´11´´E, 2000–2150 m, 28. iv.2010, 2 ♀♀, D. Frenzel leg. ( FFCJ) ; 13 km S of Tang-e-Sorkh , 30°29´25.78´´N 51°39´26.64´´E, 2144 m, 30. v.2015, 3 ♂♂ 2 ♀♀, M. Obořil leg. ( JBCB) ; Fasa area, 20 km W of Estabhan , 2200 m, 9.–11. v.2007, 2 ♂♂ 4 ♀♀, A. Klimenko leg. ( PRCS) . Isfahan prov.: 40 km SE of Aligudarz, Novghan , 35°17´N 50°05´E, 2254 m, 30. v.2009, 1 ♂ 2 ♀♀, J. Voříšel leg. ( JVCJ) . Kohgiluyeh and Boyer-Ahmad prov.: 3 km N of Sisakht , 31°9´22´´N 51°23´21´´E, 2700 m, 10.–12. v.1998, 1 ♂ 1 ♀, Gy. Fábián & K. Székely leg. ( HNHM) ; Sisakht, Dena Mt., Kuh-Gol valley , 30°84´N 51°53´E, 2498 m, 27. v.2009, 1 ♂ 1 ♀, J. Voříšek leg. ( JVCJ) ; 10 km SE of Sepidar , 5.–6. v.2007, 6 ♂♂ 1 ♀, A. Klimenko leg. ( PRCS) .

Diagnostic characters. Body length: ♂♂ 5.0–6.2 mm; ♀♀ 4.4–5.4 mm.

Colouration. Labrum yellow, sometimes with small brownish spot in middle. Elytra with small humeral spots, large discal spot with anterior margin oblique and not reaching apex of scutellum, lateral margin straight and parallel with elytral margin, posterior margin slightly rounded. Size of discal spot variable, in some specimens distinctly smaller ( Figs 38–40 ).

Head ( Fig. 17 ) with large frontal impression covered with large punctures. Anterior clypeal processes narrow, slightly convergent, outer margins oblique and concave, apical tips rounded, clypeal margin between processes straight. Mandibles moderately wide and rounded, with sharp dorsal keel. Only inner slopes of mandibles visible in dorsal view.

Aedeagus ( Fig. 5 ) with apical part triangular with straight margins and obtuse tip. Dorsal median impression with thin median keel, lateral sides convergent. Apex of aedeagus without inward triangular crooked folds. Operculum trapezoidal with slightly rounded anterior margin. Non-everted anterior sclerite visible as triangular base and long thin median process. Ventral side with two drop-shaped elongate impressions subapically.

Everted aedeagus ( Fig. 24 ). Ejaculatory guide formed by two ear-like plates. Lateral sclerites transverse, narrow. Anterior sclerite large, forming two concave plates connected in basal suture.

Spermatheca ( Fig. 11 ). Vasculum widely round, apex subtriangular, basal part slightly wider. Bulbus small, subtubular. Ductus spermathecae twice as long as vasculum, straight, without any coils.

Differential diagnosis. In the shape of male clypeal processes, L. shirazica is very similar to L. luristanica and L. regalini sp. nov., however the inner sides of processes in L. shirazica are convergent while in other species parallel (cf. Figs 16–18 ). Males of these species differ also in the structure of internal sclerites of aedeagus ( Figs. 22–25 ). The females of L. shirazica have shorter straight ductus spermathecae without any coils, while the ductus spermathecae in females of L. luristanica and L. regalini sp. nov. is longer and always coiled (cf. Figs. 10–12 ).

Labidostomis kantneri has the same shape of ejaculatory guide as L. shirazica ( Figs 20 , 24 ). Both species differ in the shape of male clypeal processes which are extremely enlarged in L. kantneri (see Figs 14, 17 ). The females of L. kantneri have slightly longer ductus spermathecae with ca 20 small simple coils ( Fig. 8 ).

Distribution. Iran: Fars, Kohgiluyeh and Boyer-Ahmad (present study), Isfahan ( Lopatin 1979, present study), Hormozgan, Kerman ( Rapilly 1984b).

Comments. The specimens of L. shirazica from Luristan province ( Warchałowski 1985) refer to L. luristanica based on the drawing of spermatheca.

Figures

FIGURES 1–6. Aedeagus in dorsal, lateral and ventral views (as—anterior sclerite, op—operculum, di—dorsal impression). 1—Labidostomis elegans; 2—L. kantneri; 3—L. limbata; 4—L. luristanica; 5—L. shirazica; 6—L. regalini sp. nov. Scale bar: 0.5 mm.

FIGURES 7–12. Spermatheca. 7—Labidostomis elegans; 8—L. kantneri; 9—L. limbata; 10—L. luristanica; 11—L. shirazica; 12—L. regalini sp. nov. Scale bar: 0.5 mm.

FIGURES 13–18. Male mandibles and clypeal processes. 13—Labidostomis elegans; 14—L. kantneri; 15—L. limbata; 16— L. luristanica; 17—L. shirazica; 18—L. regalini sp. nov. Scale bar: 0.5 mm.

FIGURES 22–25. Aedeagus with everted internal sac and ejaculatory guide in different views. 22—Labidostomis luristanica; 23—L. luristanica (specimen from Zanjan prov.); 24—L. shirazica; 25—L. regalini sp. nov. Not to scale.

FIGURES 38–42. Habitus. 38—Labidostomis shirazica (male, 5.1 mm); 39—L. shirazica (female, 5.2 mm); 40—L. shirazica (holotype, male, 5.5 mm); 41—L. regalini sp. nov. (paratype, male, 6.1 mm); 42—L. regalini sp. nov. (paratype, female, 5.4 mm).

FIGURES 19–21. Aedeagus with everted internal sac and ejaculatory guide in different views (eg—ejaculatory guide, lslateral sclerites, as—anterior sclerite). 19—Labidostomis elegans; 20—L. kantneri; 21—L. limbata. Not to scale.