Holarctias species

Makhov, Ilya, 2023, Geometridae (Lepidoptera) of the Baikal region: identification keys and annotated catalogue with notes to DNA barcoding. Part 2. Archiearinae, Geometrinae, Sterrhinae, Zootaxa 5294 (1), pp. 1-120 : 21

Key to Holarctias species of the Baikal region

1. Forewing with postmedial line not bent inward at costal margin; hindwing postmedial line without prominent inward curve between veins M1–M3 ( Fig. 22D ). In male genitalia ( Figs. 42D–42F ) socii large, near triangular; processes of juxta short, and not reaching middle of fibulae; aedeagus stout, with strong cornutus and without free hook-like process on apex. In female genitalia ( Fig. 51D ) ostium bursae comparatively narrow; antrum not twisted, widened laterally at middle.......................................................................................... H. rufinaria (Staudinger, 1861)

- Forewing with postmedial line bent inward at costal margin; hindwing postmedial line with prominent inward curve between veins M1–M3 ( Fig. 23A ). In male genitalia ( Figs. 42G–42I ) socii shorter than in H. rufinaria , lobe-like, with ventral short pointed spine; processes of juxta long and wide, reaching to 3/4 of length of fibula; aedeagus narrow, with long coecum, distally with long groove-like process. In female genitalia ( Fig. 51E ) ostium bursae wider than in H. rufinaria ; antrum broad, open, twisted, anteriorly sharply narrowed into funnel-like shape, widening again after constriction.................................................................................................. H. rufinularia ( Staudinger, 1901)

Figures

FIGURE 22. Adults of Siberian Sterrhinae. A—Idaea aversata; B—I. straminata; C—I. descitaria; D—Holarctias rufinaria.

FIGURE 23. Adults of Siberian Sterrhinae. A—Holarctias rufinularia; B—Scopula agutsaensis; C—S. immorata; D—S. corrivalaria.

FIGURE 42. Male genitalia of Siberian Sterrhinae. A–C—Idaea descitaria; D–F—Holarctias rufinaria; G–I—H. rufinularia; J–L—Scopula agutsaensis; M–O—S. immorata. A, E, I, L, N—genital segment, ventral view; B—ditto, valvae shifted; C, D, H, K, O—phallos; G, F, J, M—sternite A8. Scale bar—1 mm.

FIGURE 51. Female genitalia of Siberian Sterrhinae. A—Idaea straminata; B—I. dimidiata; C—I. descitaria; D—Holarctias rufinaria; E—H. rufinularia; F—Scopula agutsaensis; G—S. immorata. Scale bar—1 mm.