Calvia explanata Poorani

POORANI, J., 2023, An illustrated guide to lady beetles (Coleoptera: Coccinellidae) of the Indian Subcontinent. Part 1. Tribe Coccinellini, Zootaxa 5332 (1), pp. 1-307 : 54-57

Calvia explanata Poorani

( Figs 34 , 35 )

Calvia explanata Poorani, 2014 (Holotype male, NBAIR; Type locality: Sikkim).

Diagnosis. Form broad oval to circular, dorsum glabrous, convex.Adult beetle lemon green when alive ( Fig. 34c–f ), dead specimens pale yellow ( Fig. 35a–c ); similar to C. albida in having a yellowish-white mottled pattern on a greenish or lemon-yellow background, but can be distinguished by its distinctly broader, almost circular body outline with explanate elytral margins. Abdominal postcoxal line very short, incomplete ( Fig. 35d ). Male genitalia ( Fig. 35e–h ) and spermatheca ( Fig. 35i ) as illustrated.

Immature stages. Pupa ( Fig. 34a, b ) with yellow and green pattern as illustrated; teneral adult with weak whitish mottled pattern ( Fig. 34c, d ), mature adult ( Fig. 34e, f ) lime green with small creamy whitish elytral spots and a narrow, reddish pink sutural stripe.

Distribution. India (Manipur, Sikkim, Tripura, West Bengal); Nepal.

Prey / Associated habitat. Collected on Alnus sp. in association with aphids (label data); Taoia indica (Ghosh & Raychaudhuri) .

Note. This species resembles C. albida in coloration and the mottled elytral pattern but has a much broader, almost circular outline with distinctly explanate elytra and the genitalia also are distinct. See Poorani (2014) for detailed description and illustrations.

Figures

FIGURE 34. Calvia explanata Poorani, life stages: a, b. pupa; c, d. teneral adult; e, f. mature adult.

FIGURE 35. Calvia explanata Poorani: a. adult, dorsal view; b. adult, frontal view; c. adult, lateral view; d. abdominal postcoxal line; e–h. male genitalia: e. tegmen, lateral view; f. tegmen, ventral view; g. penis; h. penis apex; i. female genitalia.