Itara, Walker, 1869

He, Zhixin & Ma, Libin, 2021, Crickets of the subfamily Itarinae Shiraki, 1930 (Orthoptera: Gryllidae) from China with description of a new species and distribution and critical notes on other species, Zootaxa 4942 (3), pp. 382-408 : 384

Key to species of Itara from China (based on adult males)

1. Body colored dark, epiphallic dorsum bearing a row of denticles medially ( Figs. 9A , D-F; 10A, B, E-G)................ 2

-- Body colored yellowish brown, epiphallic dorsum without denticles............................................. 3

2. Fore femur completely colored dark ( Figs. 10A ).................................... I. (N.) nocturna Gorochov, 1988

-- Fore femur partly colored dark ( Fig. 9A ).......................................... I. (N.) sonabilis Gorochov, 1996

3. Ectoparamere strongly protruding beyond epiphallic apex, with a large lateral lobe................................. 4

-- Ectoparamere not extending to epiphallic apex, lateral lobe of ectoparamere extremely small and not covering its inner part ( Figs. 11 C-E)............................................................ I. (G.) denudata Ma & Zhang, 2015

4. Whole pronotal disc colored dark brown except blade-shape pattern ( Figs. 4A, B )................................................................................................................ I. (I.) aperta Gorochov, 1996

-- Part of pronotal disc colored dark brown except blade-shape pattern............................................. 5

5. Median ocellus much smaller than lateral ocelli (about 1/3 of lateral ocelli).................. I. (I.) minor Chopard, 1925

-- Median ocellus little smaller than lateral ocelli.............................................................. 6

6. Anal plate apical part is about 1/2 width of the basal ( Fig. 5D ).................................................. 7

-- Anal plate apical part is about 2/3 width of the basal ( Fig. 6D ).................................................. 9

7. Lateral lobes of pronotum nearly 1/2 portions colored dark........................... I. (I.) communis Gorochov, 1997

-- Lateral lobes of pronotum almost entirely colored dark....................................................... 8

8. Lateral edges of epiphallus constricted distally and bearing inward curved apex; lateral lobes of ectoparamere are small ( Fig. 8F )..................................................................................... I. (I.) acri sp. n.

-- Lateral edges of epiphallus invariable distally and bearing upward curved apex; lateral lobes of ectoparamere are large ( Fig. 4F )...................................................................... I. (I.) vietnamensis Gorochov, 1985

9. Epiphallic apex upward curved, possessing denticles at bottom ( Fig. 6F )............ I. (I.) basidentata Ma & Zhang, 2015

-- Epiphallic apex somewhat expanded, bearing two large denticles ( Fig. 7F ).............. I. (I.) dicrana Ma & Zhang, 2015

Figures

FIGURE 4. I. (I.) aperta. A. Habitus photograph of male. B. Habitus photographs of female. C. Metanotal gland. D. Anal plate. E–G. Male genitalia. E. Dorsal view. F. Lateral view. G. Ventral view. Scale bar: 1 cm.

FIGURE 5. I. (I.) communis. A. Habitus photograph of male. B. Habitus photograph of female. C. Metanotal gland. D. Anal plate. E–G. Male genitalia. E. Dorsal view. F. Lateral view. G. Ventral view. Scale bar: 1 cm.

FIGURE 6. I. (I.) basidentata. A. Habitus photograph of male. B. Habitus photograph of female. C. Metanotal gland. D. Anal plate. E–G. Male genitalia. E. Dorsal view. F. Lateral view. G. Ventral view. Scale bar: 1 cm.

FIGURE 7. I. (I.) dicrana. A. Habitus photograph of male. B. Habitus photograph of female. C. Metanotal gland. D. Anal plate. E–G. Male genitalia. E. Dorsal view. F. Lateral view. G. Ventral view. Scale bar: 1 cm.

FIGURE 8. I. (I.) acri sp. n. A. Habitus photograph of male. B. Habitus photograph of female. C. Metanotal gland. D. Anal plate. E–G. Male genitalia. E. Dorsal view. F. Lateral view. G. Ventral view. Scale bar: 1 cm.

FIGURE 9. I. (N.) sonabilis. A. Male. B. Metanotal gland. C. Anal plate. D–F. Male genitalia. D. Dorsal view. E. Lateral view. F. Ventral view. Scale bar: 1 cm.

FIGURE 10. I. (N.) nocturna. A. Habitus photograph of male. B. Habitus photograph of female. C. Metanotal gland. D. Anal plate. E–G. Male genitalia. E. Dorsal view. F. Lateral view. G. Ventral view. Scale bar: 1 cm.

FIGURE 11. I. (G.) denudata. A. Habitus photograph of male. B. Metanotal gland. C-E. Male genitalia. C. Dorsal view. D. Lateral view. E. Ventral view. Scale bar: 1 cm.