Phratora daccordii Ge and Wang

Ge, Si-Qin, Yang, Xing-Ke, Wang, Shu-Yong, Li, Wen-Zhu & Cui, Jun-Zhi, 2004, Two New Species of Phratora Chevrolat from China (Coleoptera: Chrysomelidae: Chrysomelinae), The Coleopterists Bulletin 58 (1), pp. 133-137 : 134-135

Phratora daccordii Ge and Wang , new species

( Figs. 1–5 )

Description. Body elongate ( Fig. 1 ). Length: 5.0– 5.5 mm (measured from the apex of the clypeus to the apex of the elytra); width: 2.24–2.28 mm (measured at base of the elytra). Color: Metallic brown or bluish-purple; antennae dark, two basal segments reddish-brown; tarsi brown; underside of body dark-blue, three apical sternites and apical margin of two basal segments of abdomen yellowish-brown; eyes golden yellow. Head: Clypeus with long pubescence and dense punctures, anterior margin rounded, with sparse pubescense; frons concave, with dense punctures; vertex with dense punctures, more dense than those of frons; eyes elliptical; average dorso-ventral eye length ¼ 0.32 mm; average interocular distance (at dorso-mesal margins) ¼ 0.56 mm; apical segment of maxillary palpi longer than third segment, truncate apically. Antennae robust, extending beyond base of pronotum, with dense pubescence throughout whole segments, male longer than female, segment (1–11) length (average of type series) in millimeters 0.20, 0.20, 0.20, 0.20, 0.16, 0.15, 0.16, 0.16, 0.16, 0.20, 0.32.

Pronotum: Average length at middle ¼ 0.11 mm, average width at middle ¼ 1.44 mm; without a marginal bead along base of pronotum, lateral margins slightly rounded, anterior margin with marginal bead along apex of pronotum, with protruding anterior angles; central disc with dense punctures, basal and lateral area with much coarse and more dense punctures, larger than those of clypeus. Scutellum: Shape triangular, rounded at apex, with fine punctures. Elytron: Length ¼ 1.20 mm, width (at middle) ¼ 3.66 mm. Elongated, apex weakly acute; humeral callus prominent, impunctate; surface with six striae near sutural margin regular, almost geminated, interstices with fine punctures; other striae irregular, with much denser punctures, interstices with fine punctures. Epipleuron broadened basely, slighted narrowed posteriorly and impunctate. Hind wing: Reduced, obsolete. Venter: With fine pubescence. Prosternal process smooth and impunctate, shagreened, apically truncate, slightly broadened; procoxal cavities elongate, open; mesosternal process narrow, with coarse and sparse punctures; metasternum with coarse and dense punctures, anterior margin emarginate; abdominal sternites with small shallow punctures. Legs: With sparse and large punctures and prominent pubescence, especially on lateral margin of tibiae and ventral surface of tarsi; femur elongate, tibiae slender, with dense pubescence especially at apex, third segment of tarsi bilobed, claws appendiculate. Median lobe ( Figs. 2–4 ): In lateral view strongly bent, extreme apex reflexed ( Fig. 2 ), in dorsal view with two tooth-shaped projection near apex ( Fig. 3 ), in

Figs. 6–9. Phratora jinchuanensis n. sp. 6) Median lobe of aedeagus, lateral view; 7) median lobe of adgeagus, dorsal view; 8) median lobe of adgeagus, ventral view; 9) female genitalia, spermatheca. Scale bar ¼ 0.75 mm.

ventral view broadened basally, tapered to apex, slightly pointed apically ( Fig. 4 ). Spermatheca ( Fig. 5 ): With receptacle longer than pump. Receptacle with internal side concave and external side convex, tapened and curved apically.

Variation. All males of the type series are similar in size, shape and luster. The female is slightly longer and broader, but not significantly different from the male.

Types. Holotype, male: China, Sichuan, Xiangcheng Chaike, 3,000 m, 21-VI-1989, S. Y. Wang (Deposited in the Zoological Museum , Institute of Zoology , Chinese Academy of Sciences , Beijing, P. R. China, ( IZAS)). 68 paratypes (13 males and 55 females): same data and deposition as holotype.

Etymology. The new species is named for Dr. M. Daccordi of Italy for his work on Chrysomelinae.

Distribution. China: Sichuan Province.

Host Plant. Salicaceae : Salix sp.

Diagnosis. The new species is quite similar to Phratora moha Daccordi , differing primarily in the antennae, the shape of lateral margins of pronotum, median lobe and spermatheca, as follows: the third segment of antennae longer than forth segment; in lateral view median lobe slightly bent, extreme apex slightly reflexed; spermatheca with receptacle subequal to pump; receptacle with internal side not concave.

Figures

Fig. 1. Phratora daccordii n. sp., dorsal habitus, holotype male.

Figs. 2–5. Phratora daccordii n. sp. 2) Median lobe of aedeagus, lateral view; 3) median lobe, of aedeagus, dorsal view; 4) median lobe of aedeagus, ventral view; 5) female genitalia, spermatheca. Scale bar ¼ 0.75 mm.