Cyanopenthe hirtiscutellara, Ji, Qiaoqiao & Ren, Guodong, 2019

Ji, Qiaoqiao & Ren, Guodong, 2019, Two new species of the genus Cyanopenthe Nikitsky, 1998 (Coleoptera, Tetratomidae) from southwest China, ZooKeys 874, pp. 19-30 : 25-29

Cyanopenthe hirtiscutellara sp. nov. Figs 17-23

Type material.

Holotype: ♀ (MHBU) ( Fig. 17 ), with the following labels: "2009.VI.2 // 云南独龙江钦郎当 // 1500 m 朱笑愚” translated into English as "2.VI.2009 // Qinlangdang Village, Drungjiang Township, Gongshan County, Yunnan // Elev. 1500 m, Xiaoyu Zhu leg".

Diagnosis.

This species is closely related to C. granulata sp. nov. and C. metallica (Champion, 1916), but can be distinguished by the following characters (based on female): dorsal side of body blue-violet; pronotum densely granulate, except coarsely punctured in anterior half of disc; scutellum yellow; lateral margins of paraproct of ovipositor nearly straight, proctiger almost as long as gonocoxites, gonostylus with long setae.

Description.

Dorsal side of body blue-violet, antennae, femora, tibiae and ventral side of body dark blue, some individuals with sternum and abdomen blue. Scutellum yellow, around scutellum with distinct dark-blue metallic sheen on elytra. Body with dense and black erect pubescence, dorsally and ventrally. Scutellum with dense and decumbent yellow pubescence.

Female. Head small, length 1.0 mm, width 1.6 mm, densely and finely punctured, dorsal surface with narrowly, longitudinal median depression. Eyes lateral, large and protruding, ratio of eye diameter to interocular space 1.0: 2.0. Maxillary palpomere II elongate-triangular, III suborbiculate, IV obliquely rounded at apex, sides subparallel, surface of extend part somewhat rough and dull, no shining. Antennae ( Fig. 20 ) length 4.0 mm, antennomere I cylindrical, II suborbiculate, III strongly elongate and somewhat clavate, IV–VI clavate; projection of VII about 1.3 times length of the antennomere, VIII 1.7 times longer than width, IX and X 1.6 times longer than width; apices of projections rounded, 1.2 times longer than width; ratio of antennomere lengths as follows: 3.0: 2.0: 7.0: 3.3: 3.3: 2.6: 3.4: 3.3: 3.8: 4.0: 4.4.

Pronotum ( Fig. 18 ) transverse, length 1.3 mm, width 2.8 mm, 1.7 times as wide as head. Disc weakly convex, flattened laterally with a pair of large impressions extending from base to approximately 1/3 length of pronotum. Surface densely granulate, except coarsely punctured in anterior half of disc. Anterior margin slightly sinuate, poste rior margin sinuate; lateral margins widest at anterior angles and narrowing posteriorly. Anterior angles rounded, posterior angles rectangular. Prosternal process strongly broadened posteriorly and somewhat roundly truncate apically, slightly exceeding posterior margin of prothoracic coxae. Scutellum ( Fig. 18 ) large, triangular, 1.1 times as wide as long; surface densely and finely punctured.

Elytra broadly oval, length 7.4 mm, width 5.0 mm, much wider than pronotum. Disc convex, depressed from middle to humeri along lateral margins. Surface with tiny punctures and irregular large punctures.

Abdomen ( Fig. 19 ) oval, linearly narrowed posteriorly, apex rounded. Surface densely and finely punctured. Ventrites with irregular grooves laterally.

Legs slender and long. Length of metafemora 2.7 mm, metatibiae 2.6 mm.

Ovipositor ( Figs 21-23 ) flattened, length 1.7 mm, paraproct 1.4 times as long as wide, lateral margins straight; proctiger almost as long as gonocoxites, proctiger semicircular in dorsal view, tapered posteriorly in ventral view; gonostylus with long setae.

Distribution.

China: Yunnan.

Etymology.

This species is named from the Latin hirtus and scutella, in reference to the dense decumbent pubescence on the scutellum.

Figures

Figures 17 - 23. Cyanopenthe hirtiscutellara sp. nov. 17 Habitus of Cyanopenthe hirtiscutellara sp. nov. 18 pronotum and scutellum 19 abdominal ventrite V 20 antennae 21 - 23 ovipositor dorsal, ventral and lateral view.