New faunistic record of two species of genus Calvia (Coleoptera: Coccinellidae: Coccinellini) from India and Myanmar

Calvia sichuanica Kovář (Coleoptera: Coccinellidae: Coccinellini) is reported for the first time from India and Myanmar, previously known only from China. Also, Calvia explanata Poorani, from Sikkim and Darjeeling, is newly reported from Manipur, state of India.

The genus Calvia Mulsant, 1846 (Coleoptera: Coccinellidae: Coccinellini) is distributed in the Palaearctic and Oriental regions, comprises more than 20 species of them, 14 species are known from India (Iablokoff-Khnzorian 1982;Booth 1997;Kuznetsov 1997;Poorani 2002;Poorani 2014). Booth (1997) reviewed the genus and provided the habitus and illustrations of male and female genitalia of the Indian species except for C. quindecimguttata (Fabricius, 1777). The most recent species described from Himalayan Region is C. explanata Poorani, 2014. Additional significant illustrations of habitus, male and female genitalia are provided in Iablokoff-Khnzorian (1982), Ren et al. (2009), andYu (2010). Kovář (2007: 71) in Catalogue of Palearctic Coleoptera proposed Calvia sichuanica as a replacement name for the C. sicardi Mader, 1930, as the original name, Agrabia sicardi Nunenmacher, 1912was preoccupied. Ren et al. (2009 provided the habitus and male genitalia of C. sicardi Mader, 1930 and reported the species only from China, overlooking the replaced name, C. sichuanica Kovář, 2007. While working on a collection of Coccinellidae in National Zoological Collection of Zoological Survey of India, Kolkata (NZSI), the specimens of C. sichuanica Kovář, 2007 and a recently described species, C. explanata Poorani, 2014 were found. The purpose of the paper is to report C. sichuanica Kovář, 2007 for the first time from India and Myanmar along with the supported illustrations of male and female habitus. Calvia explanata Poorani, 2014, described from Sikkim and Darjeeling is also newly reported from Manipur state. Most of the species of the genus are restricted to the Himalayan region with only two species C. andrewesi (Weise, 1908), and C. sykesii (Crotch, 1874) extended their distribution towards penninsular India.
The materials for the present study are housed in the National Zoological Collection of Zoological Survey of India, Kolkata (NZSI). Male genitalia were dissected, cleaned in 10% KOH solution, and fixed in glycerol gelatin slides prior to the study. The specimens were examined using a Nikon SMZ25 stereo microscope, and the photographs were taken using DS-Ri2 camera with NIS Elements BR 5.10.00 imaging software. Images were improved using Adobe Photoshop CS5. Morphological terminology used in the description of adults follows Ślipiński (2007), Ślipiński & Tomaszewska (2010) and Lawrence et al. (2011).
The following abbreviations are used for various measurements of the body parts given in the descriptions of the species: TL-total body length, from apical margin of clypeus to apex of elytra PL-pronotal length, from the middle of anterior margin to margin of basal foramen PW-pronotal width at widest part EL-elytral length along suture, including scutellum EW-elytral width across both elytra at widest part. NZSI-National Zoological Collection of Zoological Survey of India, Kolkata Measurements. TL: 6.80-7.20 mm; TW: 6.20-6.70 mm; TL/TW: 1.07-1.10; PL/ PW: 0.33-0.37; EL/EW: 1.76-1.78. Body. Dorsum golden-yellowish except for transparent lateral margins of pronotum and elytra; ventral side brown. Dorsum oval, convex; just before mid-elytra broadest; elytra longer than wide; glabrous dorsally. Head. Clypeal margin truncate between lateral projections; eyes prominent, inner ocular margins distinct anteriorly.  Distribution. (Fig. 2). India: Manipur (this paper). Elsewhere: China (Ren et al. 2009) and Myanmar (this paper).
Remarks. This species is recorded for the first time from India (Manipur) and Myanmar, previously known from China. In external appearance, C. sichuanica  Kovář, 2007. closely resembles C. vulnerata (Hope, 1831), but the structure of male and female genitalia resembles with that of C. championorum Booth, 1997. In C. vulnerata, elytron usually has 6 either yellow or black spots and with or without a pale outer ring. In contrast, in C. sichuanica, elytron has 5 golden yellow, with a pale yellow outer ring. In C. championorum, the parameres are equal in length of penis guide, penis swollen at apical one-third portion, and spermatheca much slender and broader near the base, whereas in, C. sichuanica, the parameres are slightly longer than penis guide, penis narrow and twisted to a thread-like structure and spermatheca entirely slender and comparatively less curved.
Both the species of Calvia Mulsant, 1846; C. sichuanica Kovář, 2007 andC. explanata Poorani, 2014 were recorded from Palearctic regions. This new distributional addition confirms that these species are not restricted to that region and has extended their range to Indo-Malayan region as well (Figs 2, 3).