Agelopsis traxlerorum Bezděk, 2020

Bezděk, Jan, 2020, Revision of Agelopsis (Coleoptera: Chrysomelidae: Galerucinae), Zootaxa 4731 (2), pp. 223-248 : 240-246

Agelopsis traxlerorum Bezděk , sp. nov.

( Figs 18 , 27 , 31 , 46 )

urn:lsid:zoobank.org:act:FA29F476-4154-468A-AE7E-4656B69B54D9

Type locality. China, Yunnan, Daju , 50 km N of Lijiang.

Type. Holotype: ♂ ( NMPC), “China-Yunnan / Daju (50 km N of / Lijiang ) Jendek lgt. [w, h]”. The holotype is provided with one additional printed red label: “ HOLOTYPUS, / Agelopsis / traxlerorum sp. nov., / J. Bezděk det., 2019”.

Description. Measurements. Male: 7.1 mm (holotype). Dorsal side elongate oval, moderately convex, glabrous. Head and pronotum metallic bluish-black, scutellum black, elytra metallic dark greenish-purpureous, ventral side, several basal antennomeres and legs black with slight metallic tint.

Male (holotype, Fig. 46 ). Labrum transverse, with straight anterior margin and rounded anterior angles, with two groups of four pores lateraly bearing long seta. Anterior part of head with straight anterior margin, surface with transverse elevated keel sinuate in middle, posteriorly produced to short proces forming nasal keel, covered with several punctures bearing seta. Interantennal space as wide as transverse diameter of antennal socket. Interocular space wide, 3.42 time as wide as transverse diameter of eye. Frontal tubercles transverse trapezoidal, elevated, smooth, lustours, separated by thin furrow. Vertex separated from frontal tubercles by deep impressed line, surface impunctate, covered with very fine microsculpture, glabrous.Antennae slender, 0.76 times as long body, length ratio of antennomeres equals 11-5-8-13-12-11-11-11-10-10-13.

Pronotum transverse, 1.63 times as wide as long, lustrous, glabrous, widest in anterior third, sparsely covered with fine punctures and very fine microsculpture. Surface moderately convex with distinct transverse impression at posterior third. Anterior margin shallowly concave, lateral margins rounded, slightly convergent and straight posteriorly, posterior margin nearly straight, sinuate in middle. Anterior margin with very fine almost indistinct border, lateral margins with wider border, posterior margin with distinct narrow border. Anterior angles distinctly swollen, obliquely pronounced, posterior angles obtusangulate, pointed, all angles with setigerous pores bearing long pale seta. Scutellum short and wide, subtriangular, with very widely rounded apex, impunctate, glabrous.

Elytra 1.46 times as long as wide (measured at humeral calli) and 0.57 times as long as body, slightly divergent posteriorly, widest at posterior third. Surface covered with small dense confused punctures. Humeral calli well developed. Epipleura relatively narrow, smooth, glabrous, lustrous, gradually narrowed towards elytral apex. Macropterous.

Abdomen: last abdominal ventrite with two V-shaped sharp incisions, median lobe with parallel lateral margins, middle of venrite with distinct subcircular impression.

Metatrochanter enlarged forming flat, oblique, wedge-shaped process. Tarsi: protarsomere I and II triangular, I slightly wider than II, length ratio of protarsomeres equals 9-7-4-10, of metatarsomeres equals 12-9-4-10.

Aedeagus ( Fig. 27 ) with triangular apex and laterally extended subapical part. Ventral side with long impressed furrow, oval anteriorly, narrower and parallel posteriorly, posteriorly surrounded by elevated margins.

Female unknown.

Differential diagnosis. Agelopsis traxlerorum sp. nov. shares modified male metatrochanters with A. spinipes and A. metallicus . Metatrochanters of A. traxlerorum sp. nov. are wedge-shaped, without distinct tooth ( Fig. 31 ) while metatrochanters of A. spinipes and A. metallicus form distinct tooth ( Figs 28–30 ). All three species differ also in the structure of aedeagus ( Figs 22 , 23, 27 ).

Distribution. China: Yunnan.

Etymology. Dedicated to all the members of Traxler family (Wien, Austria): Tereza, Erwin, Magdalena, Benjamin, Dominik, and Jakob.

Figures

FIGURES 15–18. Habitus of Agelopsis. 15—A. tibetanus (male, 6.5 mm); 16—A. konstantinovi sp. nov. (holotype, male, 4.4 mm); 17—A. malaisei sp. nov. (holotype, male, 6.3 mm); 18—A. traxlerorum sp. nov. (holotype, male, 7.1 mm).

FIGURES 23–27. Aedeagus in dorsal, lateral and ventral views. 23—Agelopsis spinipes; 24—A. tibetanus; 25—A. konstanti- novi sp. nov.; 26—A. malaisei sp. nov.; 27—A. traxlerorum sp. nov. Not to scale.

FIGURES 28–31. Left male metatrochanter. 28—A. metallicus (paratype); 29—A. spinipes (male from Sichuan); 30—A. spinipes (male from Gansui); 31—A. traxlerorum sp. nov. (holotype). Not to scale.

FIGURES 38–46. Abdomen in ventral and lateral views. 38—Agelopsis aeneoviridis; 39—A. metallicus (paratype); 40—A. spinipes; 41—A. tibetanus; 42, 44—A. konstantinovi sp. nov. (paratype); 43, 45—A. malaisei sp. nov. (paratype); 46—A. traxlerorum sp. nov. (holotype). Not to scale.

FIGURES 19–22. Aedeagus in dorsal, lateral and ventral views. 19—Agelopsis aeneoviridis; 20—A. belousovi; 21—A. caeruleus; 22—A. metallicus. Not to scale.