Psyra breviprotrusa Liu, Xue & Han

Liu, Zulian, Xue, Dayong, Wang, Wenkai & Han, Hongxiang, 2013, A review of Psyra Walker, 1860 (Lepidoptera, Geometridae, Ennominae) from China, with description of one new species, Zootaxa 3682 (3), pp. 459-474 : 472

Psyra breviprotrusa Liu, Xue & Han sp. nov.

Figs 23 , 38 , 51

Description. Head. Antenna filiform in male, dorsal side yellowish white, tapering. Frons rounded, slightly protruding, yellowish white. Labial palpus short and stout, slightly extending beyond frons, ventral surface of segment 1 and 2 dark brown, segment 3 greyish white. Vertex greyish white. Thorax. Patagium, tegula and dorsal side of thorax yellowish white. Metathorax with a pair of black spots. Hind tibia in male dilated, with hair-pencil. Forewing length: 3 20–22 mm. Wings grey, tinged with light rufous, hindwing paler. Forewing with outer margin weakly protruding, antemedial line brown, diffuse, slightly protruding, a small black spot present at lower margin of cell and 2A; medial line brown, diffuse and broad, slightly protruding; postmedial line a row of tiny dots on veins, nearly straight, close to medial line under cell; submarginal line greyish white, with two small black triangular patches outside between M1 and M3, another black patch present between vein CuA2 and inner margin, elongated and excavated at vein 2A; terminal line appearing as a series of small black dots between veins; fringes grey; discal spot a small faint black dot. Hindwing with basal area whitish with grey speckles, medial line present as brown band, nearly straight. Underside dull grey, streaks on upperside discernible. Male genitalia. Uncus gradually tapering, spinose. Gnathos very broad, tongue-like. Valva tapering, with basal part broad and tip pointed. Costal basal lobe very short, terminal part tapering and bent proximally. Saccus rounded, not protruding. Juxta a large sclerite, with a blunt triangular median dorsal process. Aedeagus short and stout, cornutus a long, moderately broad spine at posterior end of vesica. Female genitalia. Unknown.

Material examined. Holotype, 3, CHINA: Gansu ( IZCAS): Yongdeng, Tulugou, 2280 m, 2–4.IV.1992, coll. Xue Dayong (slide no. 1987). Paratypes: 13, same data as holotype; 13, Tianshui, Dongcha Linchang, Taohuaping, 990 m, 15–19.IV.2005, Wang Xuejian.

Diagnosis. The wing pattern of P. breviprotrusa is very close to that of P. bluethgeni ( Fig. 24 ) in the presence of similar transverse lines and an elongate black patch near the inner margin on the forewing: this patch terminates at vein CuA 2 in P. breviprotrusa but often extends above vein CuA 2 in P. bluethgeni (below CuA 2 in the type). In addition, there are two black triangular patches outside the cell in P. breviprotrusa (four in another paratype) but three in P. bluethgeni . The outer margin of the forewing is less angled on M3 end. In the male genitalia, the uncus is much slenderer, the costal basal lobe is much shorter, and the valva is longer and broader than that of P. bluethgeni ( Fig. 39 ); P. breviprotrusa lacks the protrusion on the base of the costa, which is present in P. bluethgeni . The aedeagus of P. breviprotrusa lacks bundles of spines as does that of P. bluethgeni ( Fig. 52 ), but the cornutus is much shorter.

Etymology. This species name refers to the short costal basal lobe of the male genitalia.

Distribution. China (Gansu).

Figures

FIGURES 1 – 24. Adults of Psyra. 1 – 2. P. angulifera. 1, male (holotype, BMNH); 2, male, from Sichuan (IZCAS); 3 – 5. P. boarmiata. 3, male (holotype? of P. boarmiata boarmiata, MNHU); 4, ditto, female, from Jilin (IZCAS); 5, male (holotype of P. boarmiata subcuneata, BMNH); 6 – 8. P. cuneata. 6, male (holotype of P. cuneata cuneata, BMNH); 7, male, from Yunnan (IZCAS); 8, female (P. cuneata matsumurai, BMNH); 9 – 11. P. szetschwana stat. nov. 9, male (syntype of P. cuneata szetschwana, ZFMK); 10, male (syntype of P. cuneata lidjangica, ZFMK); 11, male, from Yunnan (IZCAS); 12 – 13. P. dsagara stat. nov. 12, male (lectotype, ZFMK); 13, male, from Hunan (IZCAS); 14, P. conferta, male (holotype, BMNH); 15, P. moderata, male (holotype, BMNH); 16, P. gracilis, male, from Yunnan (IZCAS); 17, P. similaria, male (syntype, BMNH); 18 – 19. P. spurcataria. 18, male (lectotype, BMNH); 19, male, from Yunnan (IZCAS); 20, P. rufolinearia, female (holotype, BMNH); 21 – 22. P. falcipennis. 21, male, from Hubei (IZCAS); 22, female, from Fujian (IZCAS); 23, P. breviprotrusa sp. nov., male (holotype, IZCAS); 24, P. bluethgeni, male (syntype, MNHU). Scale bar = 1 cm.

FIGURES 33 – 39. Male genitalia of Psyra. 33, P. moderata (holotype, BMNH slide no. 16391); 34, P. gracilis; 35, P. similaria (from Dr. Yazaki); 36, P. s p u rc a t a r i a; 37, P. falcipennis; 38, P. breviprotrusa (holotype); 39, P. bluethgeni (BMNH, Inoue slide no. 8325). Scale bar = 1 mm.

FIGURES 40 – 52. Aedeagus of Psyra. 40, P. angulifera; 41, P. boarmiata boarmiata; 42, P. cuneata cuneata; 43, P. szetschwana; 44, P. dsagara; 45, P. c o n f e r t a (paratype, BMNH, Inoue slide no. 6040); 46, P. m o de ra t a (holotype, BMNH slide no. 16391); 47, P. gracilis; 48, P. similaria (from Dr. Yazaki); 49, P. spurcataria; 50, P. falcipennis; 51, P. breviprotrusa (holotype); 52, P. bluethgeni (BMNH, Inoue slide no. 8325). Scale bar = 1 mm.