Agrilus dali Jendek

Jendek, Eduard & Grebennikov, Vasily V., 2009, Revision of the Agrilus cyanescens species-group (Coleoptera: Buprestidae) with description of three new species from the east Palaearctic region, Zootaxa 2139, pp. 43-60 : 54

publication ID	https://doi.org/ 10.5281/zenodo.274997
DOI	https://doi.org/10.5281/zenodo.6224720
persistent identifier	https://treatment.plazi.org/id/CE492159-C97F-0445-64D2-FDA6FAABF805
treatment provided by	Plazi
scientific name	Agrilus dali Jendek
status	sp. nov.

Treatment

Agrilus dali Jendek View in CoL sp. n.

( Figs. 6 View FIGURES 1 – 8 , 15 View FIGURES 9 – 17 , 22 View FIGURES 18 – 24 , 30, 39)

Type specimens. Holotype 3, ( EJCB): “ China CW, Yunnan prov., Dali , 19–21.v.1993 R. Červenka leg.”. Paratypes (22 3, 14 Ƥ): 11 3, 7 Ƥ ( EJCB), same data as holotype; 2 3 ( EJCB): “ China - Yunnan, 28.5.– 9.6. 1994, Dali , lgt. E. Kučera”; 2 Ƥ ( EJCB): “ China, Yunnan Dali 1–7.vi.1994 leg. B.Šiška & T. Spevár”; 1 3 ( EJCB): “ China N–Yunnan Yulongshan Mts. 2500–2800 m Ganhaizi / Lijiang road lgt. D. Král 24–26/7'90”; 4 3, 2 Ƥ ( EJCB): “Yunnan 2600–3100 m, 25.38N 100.09E Cangshan Mts. 5–6/6 Vít Kubáň leg. 1993”; 2 3 ( EJCB): “ China,Yunnan, 22.V.–2.VI., 100 km W of Kunming, 1993, Diaolin Nat. Reservation, E. Jendek & O. Šauša leg.”; 1 3 ( EJCB): “China-Yunnan, Ningjing Shan, Wei-Shi, 2200 m, 12– 13.6.2006, Vladimír Major leg.”; 1 Ƥ ( EJCB): “ China, W Sichuan, Ganzi Tibetian Auton. Pref., Daxue Shan, river valley, 15 km S Kangding, 2800 m, 29.56 N, 101.58E, 26.6.1999, leg. A. Pütz”; 1 Ƥ ( EJCB): “ China, Sichuan pr., Liziping 28.vi.–3.vii.1991, R. Dunda leg.”; 1 Ƥ ( EJCB): “Sichuan, VII. 1992, Gonggashan Mts., Hailougou vall., Sauer leg.”. 1 3 ( MNHN): “ Siao –Lou–Lou–Chan, Chasseurs Thibétains 1896”;

Type locality: China CW, Yunnan province, Dali [25°41'N, 100°09'E]”.

Description of the holotype. Medium sized, greenish-blue, brightly lustrous. Head distinctly narrower than pronotum at widest point. Eyes markedly convex, distinctly projecting beyond head outline. Frons and vertex with obvious median longitudinal impression ( Fig 22 View FIGURES 18 – 24 ). Pronotum markedly convex, widest at anterior third, sides clearly arcuate, slightly emarginate before obtuse hind angles, anterior lobe weak, subtriangular; pronotal disc with small, well-defined semi-foveolate depression antero-laterally, prehumerus absent; marginal and submarginal carinae markedly convergent, submarginal carina is vestigial just before merging point with marginal one at hind angles. Scutellum with transverse carina interrupted medially. Elytral apices widely separately arcuate.

Prosternal lobe (Fig. 30) robust, markedly protrusive outward, deeply arcuately emarginate with sharply pointed sides; prosternal process (Fig. 30) finely, sinuately enlarged between coxae, feebly impressed on disc, sides with blunt angles; metacoxae sharply protruding outward (antero-ventral view) ( Fig. 39 View FIGURES 33 – 41. A ); basal ventrite deeply, subtriangularly impressed between metacoxae.

Aedeagus with median lobe distinctly pointed at apex and with edentate sides ( Fig. 15 View FIGURES 9 – 17 ). Metatarsi distinctly shorter than metatibiae; tarsomere 1 subequal in length to following two tarsomeres combined.

Sexual dimorphism. Females are larger and more robust; eyes smaller and less convex; prosternal lobe narrower, with margin only shallowly emarginate, sides of emargination arcuate, not spinate; metacoxae flat, not protruding; basal ventrite without impression between metacoxae; last ventrite less arcuate at apex.

Variability. The specimens studied differ in the depth of the emargination of the prosternal lobe, the form of the prosternal process (from parallel to slightly arcuately enlarged), the depth and extent of the anterolateral pronotal impressions in some females, the degree of obliteration of the prehumerus which is sometimes indicated as a gibbosity, the depth of the impression of the basal ventrite and the emargination of the apex of the last ventrite in males.

Measurements. Holotype: 5.8 mm, Paratypes 5.1–7.9 mm.

Differential diagnosis. This species is distinctive by the bluish-green, brightly lustrous color; by the markedly convex pronotum with obviously arcuate sides; by the deep semi-foveolate depression situated antero-laterally on each side of pronotal disc and by the form of median lobe of aedeagus ( Fig. 15 View FIGURES 9 – 17 ).