Geometra euryagyia ( Prout, 1922 )

Han, H-X., Galsworthy, A. C. & Xue, D-Y., 2009, A survey of the genus Geometra Linnaeus (Lepidoptera, Geometridae, Geometrinae), Journal of Natural History 43 (13 - 14), pp. 885-922 : 902-903

Geometra euryagyia ( Prout, 1922) ( Figure 1E )

Hipparchus euryagyia Prout, 1922 , Bull Hill Mus Witley 1(2):252; ibidem (1924): pl. 25, fig. 11. Holotype ♀, [ China]: Yunnan, Tali. (BMNH)

Geometra euryagyia: ICZN, 1957 , Opin Decl ICZN 15(Opinion 450):254.

Description

Antennae in male bipectinate, filiform at end, the longest ramus about 1.5 times diameter of flagellum. Frons with basal half white, upper half pale brown. Vertex pale brown. Thorax and abdomen pale whitish green. Hind tibia with hair-pencil and short terminal extension.

Wing pattern. Length of forewing „ 23–26 mm; ♀ 25–29 mm. Wings pale bluish green, veins white. Outer margin of both wings smooth, slightly incurved under apex of forewing and protruding at M 3 on hindwing. Differing from all other members of the genus in having antemedial line of forewing, postmedial and submarginal lines of both wings of about the same intensity: in all cases, distinct, white and wide, almost straight; hindwing with postmedial line oblique towards anal angle and quite close to submarginal line near anal angle; antemedial line with outer side and postmedial line with inner side edged with dark green. Discal spot on forewing white, dash-like, invisible on hindwing. Fringes white. Underside similar to upperside.

Male genitalia ( Figures 2E , 3E ). Uncus a shallow arc. Socii developed, long, slightly sclerotized. Gnathos sclerotized, with median process rod-like, broad, strongly sclerotized at end. Valva simple, broad basally and narrow apically, apex blunt and rounded; sacculus not extended distinctly, less than one-half of valva in length. Pointed projection at apex appears as a small sclerotized ridge. Transtilla a pair of large membranous processes. Saccus protruding, rounded. Coremata present. Aedeagus stout, posterior half sclerotized, gradually narrowing towards posterior end, blunt.

Segment 8 ( Figure 5E ) with tergite moderately protruding, posterior margin curved; sternite membranous, with a pair of small processes.

Female genitalia ( Figure 4E ). Ovipositor broad. Sclerotized and wrinkled area present around ostium. Ductus bursae very short, sclerotized, with V-shaped antrum. Corpus bursae with posterior one-third narrow and wrinkled, other parts rounded; signum a tiny sclerite.

Materials examined

IZCAS: 1 „, Shaanxi: Liuba Miaotaizi , 1470 m, 1 July 1999, coll. He Tongli; 1 „ 3♀ , Shaanxi: Ningshan Huoditang , 21 July to 3 August 1979, coll. Han Yinheng ; 1 „ 1♀, Shaanxi: Ningshan Huoditang , 1580 m, 26 July 1998, coll. Yao Jian and Yuan Decheng; 1 „ , Gansu: Kangxian Qinghelinchang , 1450–1650 m, 15 July 1998, coll. Wang Hongjian ; 2 „, Gansu: Kangxian Qinghelinchang , 1400 m, 7 July 1999, coll. Yao Jin ; 1♀, Gansu: Kangxian Yangbalinchang , 1000 m, 11 July 1999, coll. Zhu Chaodong.

BMNH: 1♀, holotype, Yunnan, Tali, 67.20, ex. Coll. Ed. Brabant. 1920, Joicey Bequest, B.M. 1934-120 ( Hipparchus euryagyia Prout ♀ type; red ‘‘type H.T.’’ label; labelled ‘‘ glaucaria Ménétr’’ as mentioned in original description) .

ZFMK: 1♀, Tsekou, ex. Obth .

ZSM: 1♀, He Nan, Bao tiao Man, 500 m, July 2000 .

CAU: 1 „, Henan: Songxian Baiyunshan , 15 July 1996; 1 „ , Henan: Luanchuan Longyuwan , 9 July 1996 .

Distribution

China (Henan, Shaanxi, Gansu, Yunnan) .

Figures

Figure 1. Adults of Geometra. (A) G. papilionaria, „; (B) G. symaria, „; (C) G. albovenaria, „; (D) G. valida, „; (E) G. euryagyia, „; (F) G. dieckmanni, „; (G) G. sponsaria, „; (H) G. ussuriensis, „; (I) G. neovalida sp. nov. „, holotype; (J) G. flavifrontaria, „; (K) G. purissima, „, holotype; (L) G. smaragdus, „; (M) G. fragilis, „, syntype; (N) G. sinoisaria, „, syntype; (O) G. burmensis sp. nov., „, holotype; (P) G. glaucaria, „; (Q) G. rana, „; (R) G. sigaria, „, syntype. Scale bar 10 mm.

Figure 2. Male genitalia of Geometra. (A) G. papilionaria; (B) G. symaria; (C) G. albovenaria; (D) G. valida; (E) G. euryagyia; (F) G. dieckmanni; (G) G. sponsaria; (H) G. ussuriensis; (I) G.

Figure 3. Aedeagus of Geometra. (A) G. papilionaria; (B) G. symaria; (C) G. albovenaria; (D) G. valida; (E) G. euryagyia; (F) G. dieckmanni; (G) G. sponsaria; (H) G. ussuriensis; (I) G. neovalida sp. nov.; (J) G. flavifrontaria; (K) G. purissima; (L) G. smaragdus; (M) G. fragilis; (N) G. sinoisaria; (O) G. burmensis sp. nov.; (P) G. glaucaria; (Q) G. rana; (R) G. sigaria. Scale bar 1 mm.

Figure 4. Female genitalia of Geometra. (A) G. papilionaria; (B) G. symaria; (C) G. albovenaria; (D) G. valida; (E) G. euryagyia; (F) G. dieckmanni; (G) G. sponsaria; (H) G. ussuriensis; (I) G. neovalida sp. nov.; (J) G. flavifrontaria; (K) G. purissima; (L) G. smaragdus; (M) G. fragilis; (N) G. sinoisaria; (O) G. glaucaria; (P) G. rana. Scale bar 1mm.

Figure 5. Segment 8 of Geometra. (A) G. papilionaria; (B) G. symaria; (C) G. albovenaria; (D) G. valida; (E) G. euryagyia; (F) G. dieckmanni; (G) G. sponsaria; (H) G. ussuriensis; (I) G. neovalida sp. nov.; (J) G. flavifrontaria; (K) G. purissima; (L) G. smaragdus; (M) G. fragilis; (N) G. sinoisaria; (O) G. burmensis sp. nov.; (P) G. glaucaria; (Q) G. rana; (R) G. sigaria.