Letana pyrifera Bey-Bienko, 1956

Nagar, Rajendra & Swaminathan, R., 2015, Occurrence of a new species of Letana (Orthoptera: Tettigoniidae: Phaneropterinae) in India, Zootaxa 4044 (3), pp. 429-445 : 435-443

Letana pyrifera Bey-Bienko, 1956

(Fig. 12, 19, 23, 29, Plate II)

Material examined. (8 ♂ Specimens) India: Rajasthan; Maharashtra; 27.x.2012, Coll. Rajendra Nagar (Rajasmand); 26.ix2012, Coll. Jhabar Mal; 31.x.2014, Coll. Rajendra Nagar (Banswara); 6.x.2013, Coll. Rajendra Nagar (Chikaldhara) (2); 30.x.2006, Coll. G. S. Chundawat (RCA, Udaipur); 12.vii.2013, Coll. Rajendra Nagar (Anand).

Description. Male: medium sized parapterous, green species with slightly maculated tegmina; pronotum slightly inflate; stridulatory field length 2.20 mm and width 1.55mm; hind wing 6–7mm longer than tegmina; stridulatory file small, anterior margins to posterior margins slightly curved with comparatively large pegs in posterior half with about 145 teeth; 9th tergite rather weakly projecting behind, apex broadly rounded; supra-anal plate shallowly grooved in the middle, apex with semi-circular incision between the sub-truncate medial part and the protruding apico-lateral angle; cerci slightly arcuate with a baso-internal bump, internal margins with a black marked dilation from basal fourth to apex; subgenital plate lateral lobes with apical part widening apically, apex obliquely sub-truncate; phallus sclerite small, elongate, connected with phallus by membrane.

PLATE III. L. infurcata male 1–9: 1. Dorsal view of head with pronotum; 2. Left tegnima; 3. Ventral view of stridulatory file on left tegmina; 4. Dorsal view of ninth tergite; 5. Apex view of cerci; 6. Ventral view of subgenitalia plate; 7. Left cerci; 8. Lateral view of genitalia; 9. Phallus sclerite. L rubescens female; 10–15: 10. Dorsal view of head with pronotum; 11. Lateral view of pronotum; 12. Right tegmina; 13. Lateral view of ovipositor; 14. Lateral view of cerci; 15. Ventral view of subgenitalia plate.

PLATE IV. L. atomifera male 1–8: 1. Dorsal view of stridulatory file; 2. Mirror on right tegmina; 3. Ventral view of stridulatory file on left tegmina; 4. Lateral view of genitalia; 5. Left cerci; 6. Ventral view of subgenitalia plate; 7. Dorsal view of phallus sclerite; 8. Lateral view of phallus sclerite. female 9–12: 9. Lateral view of ovipositor; 10. Dorsal view of supra anal plate; 11. Ventral view of subgenitalia plate; 12. Lateral view of cerci. L. inflata female 13–15: 13. Lateral view of ovipositor; 14. Ventral view of subgenitalia plate; 15. Lateral view of cerci.

PLATE V. L. bulbosa male 1–9: 1. Dorsal view of stridulatory file; 2. Mirror on right tegmina; 3. Ventral view of stridulatory file on left tegmina; 4. Dorsal view of ninth tergite; 5. Ventral view of subgenitalia plate; 6. Right cerci; 7. Lateral view of genitalia; 8. Dorsal view of phallus sclerite; 9. Lateral view of phallus sclerite. Female 10–14: 10. female habitus; 11. Lateral view of ovipositor; 12. Dorsal view of supra anal plate; 13. Ventral view of subgenitalia plate; 14. Lateral view of cerci.

PLATE VI. L. rufonatata male 1–7: 1. Ventral view of stridulatory file; 2. Dorsal view of stridulatory file; 3. Right cerci; 4. Ninth tergite; 5. Ventral view of subgenitalia plate; 7. Dorsal view of phallus sclerite. Female 8–9: 8. Lateral view of ovipositor; 9. Ventral view of subgenitalia plate.