Nymphius stylifer kadleci, Bezděk, 2008

Bezděk, Jan, 2008, New species and subspecies of Nymphius (Coleoptera: Chrysomelidae: Galerucinae) from Iran and Turkey, Acta Entomologica Musei Nationalis Pragae 48 (1), pp. 79-93 : 83-85

Nymphius stylifer kadleci ssp. nov.

( Figs. 8 , 16 , 19-20 )

Type locality. Turkey, Muş province, Muş Ovasi.

Type material. HOLOTYPE: ♁, ‘TR vill. Muş 18.6.86 / Muş Ovasi 1520 m / Kadlec + Voříšek leg. [w, p] // Nymphius / stylifer Wse [h] / Voříšek det. 2001 [w, p]’ ( NMPC). PARATYPES: 1 ♁ 14 ♀♀, ‘TR vill. Muş 18.6.86 / Muş Ovasi 1520 m / Kadlec + Voříšek leg. [w, p]’ (1 PT in NMPC, 2 PT in JBBC, 12 PT in JVJC). The specimens are provided with additional printed red labels: ‘ HOLOTYPUS [or PARATYPUS], / Nymphius stylifer / ssp. kadleci ssp.nov., / J. Bezděk det 2008’.

Description. Body length: males 4.35-4.75 mm (holotype 4.35 mm); females 4.65- 5.75 mm.

Male. Body slender, flattened, parallel, glabrous. Body metallic blue-green. Mouthparths, genae, and anterior margin of clypeus yellow. Antennomeres 1-3 yellow, antennomeres 4-6 gradually darkened, antennomeres 7-11 black. Legs yellow, last two tarsomeres infuscate. Abdomen bluish brown to bluish black.

Head as wide as anterior part of pronotum and 2.05 times as wide as the interocular space. Labrum transverse, at each lateral side covered with several setigerous pores bearing pale setae, anterior margin straight. Anterior part of head semiopaque, finely microsculptured, sparsely covered with small punctures and long pale setae. Frontal tubercles large, slightly elevated, subtriangular, with anterior edges separated by nasal keel, lustrous. Both tubercles separated by deep furrow; another deep furrow separating posterior margin of each tubercle from frons. Frons and vertex with fine median impressed line. Vertex semiopaque, microsculptured, with indistinct wrinkles.Antennae slender, 0.90 times as long as body, length ratios of antennomeres 1-11 equal to 12-6-11-16-16-15-15-15-14-14-16.

Pronotum nearly lustrous, glabrous, tranverse, 1.35 times as broad as long, widest in anterior third, narrowed anteriad and posteriad. Surface densely covered with very fine punctures. Lateral margin rounded at maximal width, straight and convergent posteriad, anterior and posterior margins straight.All margins distinctly bordered.Anterior angles nearly rectangular, posterior angles obtusely angulate, each angle with distinct tooth bearing long pale seta.

Scutellum subtriangular with widely rounded apex, glabrous, impunctate, lustrous.

Elytra parallel, lustrous, glabrous. Humeral calli well developed. Lateral side of each elytron with indistinct obtuse rib beginning posteriad of humeral callus and disappearing before elytral apex. Elytral surface covered with small and very dense confluent punctures. Epipleura distinct, gradually tapering, disappearing behind elytral midlength. Macropterous. Elytra 0.73 times as long as body and 1.83 times as long as wide.

Legs slender, densely covered with short pale hairs. Protarsomere 1 slightly enlarged, as long as two following tarsomeres combined, length ratios of protarsomeres 1-4 equal to 13-8-5-10. Metatarsomere 1 as long as two following tarsomeres combined, length ratios of metatarsomeres 1-4 equal to 16-10-6-11. Claws with distinct basal tooth.

Ventral surface semiopaque, finely punctate and covered with microsculpture and pale hairs. Abdomen modified ( Fig. 8 ): ventrites 1 and 2 simple. Ventrite 3 widely prolonged posteriad to tapered process, with shortly divergently bifurcate apex, posterior margin with wide shallow incision. Ventrite 4 prolonged into two narrow parallel appendages, with apices slightly bent outwards. Ventrite 5 without appendages, simply trilobed, incisions very deep.

Shape of aedeagus as in Fig. 16 .

Female. Depression in middle of last ventrite brownish. Head 0.95 times as wide as anterior part of pronotum and 1.84 times as wide as interocular space. Antennae 0.70 times as long as the body, length ratios of antennomeres 1-11 equal to 15-6-12-15-15-15-15-15-14-14-18. Pronotum 1.43 times as broad as long. Elytra 0.75 times as long as body and 1.86 times as long as wide. Protarsomere 1 0.80 times as long as two following tarsomeres combined, length ratios of protarsomeres 1-4 equal to 13-10-6-9. Metatarsomere 1 0.90 times as long as two following tarsomeres combined, length ratios of metatarsomeres 1-4 equal to 16-10- 5-12. Last ventrite with median depression, wide and shallow in anterior part and narrow and deeper in posterior part ( Fig. 19 ). Lateral convergent sides of last ventrite moderately rounded, with wide and shallow emargination near midlength. Pygidium subtriangular, with apex rounded.

Differential diagnosis. Males of Nymphius stylifer kadleci ssp. nov. differ from N. stylifer stylifer and N. stylifer ogloblini in the structure of the abdominal appendages ( Figs. 6-8 ). In N. s. stylifer and N. s. ogloblini , ventrite 3 forms two long posterior processes separated by a very deep incision, but the incision in N. s. kadleci ssp. nov. is very shallow and the processes therefore form only very short divergent furca. The long processes of ventrite 4 are distinctly divergent in N. s. stylifer and N. s. ogloblini (and claviform in N. s. ogloblini ), but parallel with apices slightly bent outwards in N. s. kadleci ssp. nov. The aedeagus of N. s. kadleci ssp. nov. is similar to that of N. s. stylifer and N. s. ogloblini but the apical part is more rounded in lateral view ( Figs. 14-16 ).

Females of all three subspecies can be separated by the shape of the pygidium and the last ventrite. The apex of the pygidium is sharply pointed in N. s. ogloblini and rounded in N. s. stylifer and N. s. kadleci ssp. nov. The depression on the last ventrite is shallow and parallel in N. s. ogloblini and N. s. stylifer but wide and shallow in the anterior part and narrow and deeper in the posterior part of ventrite in N. s. kadleci ssp. nov.

Etymology. Dedicated to one of the collectors of the type series, Stanislav Kadlec (Litvínov, Czech Republic), a specialist in the Cerambycidae .

Distribution. Eastern Turkey, Muş province.

Figures

Figs. 5-8. Male abdomen (a – ventral view; b – lateral view). 5 – Nymphius pravei (Jacobson, 1899); 6 – N. stylifer stylifer (Weise, 1899); 7 – N. stylifer ogloblini (Bogachev, 1947); 8 – N. stylifer kadleci ssp. nov. Scale: 2 mm for Figs. 7-8; Figs. 5-6 redrawn from FOGATO (1981).

Figs. 9-16. Aedeagus (a – dorsal view; b – lateral view). 9 – Nymphius ensifer (Guillebeau, 1891); 10 – N. forcipifer (Weise, 1900); 11 – N. gianassoi sp. nov.; 12 – N. lydius (Weise, 1886); 13 – N. pravei (Jacobson, 1899); 14 – N. stylifer stylifer (Weise, 1899); 15 – N. stylifer ogloblini (Bogachev, 1947); 16 – N. stylifer kadleci ssp. nov. Scale: 1 mm for Figs. 11, 14-16; Figs. 9-10, 12-13 redrawn from FOGATO (1981).

Figs. 17-20. 17-18 – Nymphius gianassoi sp. nov. (female). 17 – last ventrite; 18 – pygidium. 19-20 – N. stylifer kadleci ssp. nov. (female). 19 – last ventrite; 20 – pygidium. Scale: 1 mm.