Parastenostola nigroantennata

Lin, Meiying, Li, Wenzhu & Yang, Xingke, 2008, Taxonomic review of three saperdine genera, Mandibularia Pic, Mimocagosima Breuning and Parastenostola Breuning (Coleoptera: Cerambycidae: Lamiinae: Saperdini), Zootaxa 1773, pp. 1-17 : 15-16

Parastenostola nigroantennata subsp. taiwanensis Lin et Yang, subsp. nov.

( Figs. 30–33 )

Description. Male: length: 15.0 mm, humeral width: 4.3 mm. Female: length: 13.0– 15.3 mm, humeral width: 4.0– 4.5 mm. Antennomere ratio: male: 16 4 25 22 16 15 13 12 11 10 12; female: 16 3 23 18 14 12 11 10 9 8 9. It is similar to P. nigroantennata from Guangxi, except the small difference pointed in ìdiagnosisî. Male genitalia ( Fig. 32 ): Tegmen about 3.3 mm; lateral lobes short, each about 0.37 mm long and 0.15 mm wide, with setae at the apex and around of dorsal surface, with two small lobes furnished with short and fine hairs at the ventral base; roof very short; ringed part elbowed in the widest portion, converging; basal piece slightly bifurcated distally; median lobe with median struts slightly curved, a little longer than tegmen (38:33); the former distinctly shorter than the latter; dorsal plate longer than ventral plate; the ventral edge of median orifice weakly projected; median foramen extremely elongated; internal sac moderately long, with four long and thin rods and a small crescent armature at the basal of rods, the hairlike rods about 4.5 mm, much longer than tegmen or median lobes with median struts. Ejaculatory duct single. Female genitalia ( Fig. 33 ): Setae of sternite 7–8 short, hardly extending beyond apex. Spermatheca distinctly curved, dividing more than 8 different parts, the last part in the apex expanded, the other parts nearly the same size, about 1.6 mm long for a 15.3 mm adult. Tignum short, slightly longer than 1/3 of abdomen. Tignum 2.0 mm for an adult with a 5.0 mm abdomen in ventral view.

Diagnosis. This subspecies can be differentiated from the nominal P. nigroantennata from Mainland China by: the color of pubescence on mesepisternum, gray in nigroantennata while yellow in taiwanensis; black macula of prothorax distinctly narrower apically and not reaching basal margin in nigroantennata while reaching basal margin in taiwanensis; femora and tibiae black in nigroantennata while brown in taiwanensis; lateral lobes of tegmen moderately long in nigroantennata , 0.5 mm for 3.3 mm tegmen, while shorter in taiwanensis, less than 0.4 mm for 3.3 mm tegmen.

Etymology. Named after the collection site of ìTaiwanî.

Type specimens examined. Holotype: male, Taiwan, Yilan county, Qilan, 2004. V.5, coll. Renfu Liu ( IZAS). Paratype: 1 female, Taiwan, Taoyuan county, Zhongbaling, 2004. VII.6, coll. Yifu Li ( CWIC).

Other specimens. 1 female, Taiwan, Xinzhu county, Baoshan Shuiku, 1993. V.29, coll. Changqing Chen (deposited in personal collection of Changqing Chen, only examined by photo). 1 specimen, Taiwan, Miaoli county, Dahu, confirmed by Mr. Yulong Lin, the author didn’t examine the specimen. Distribution. China: Taiwan.

Figures

FIGURES 30 – 31. Parastenostola nigroantennata subsp. taiwanensis Lin et Yang subsp. nov. 30. male, holotype, from Taiwan. a. dorsal view. b. lateral view. c. ventral view. 32. female, paratype, from Taiwan, dorsal view.

FIGURES 32 – 33. Genitalia of Parastenostola nigroantennata subsp. taiwanensis Lin et Yang subsp. nov. 32. male genitalia. a. dorsal view. b. lateral view. c. ventral view. 33. female genitalia, dorsal view, background green.