Valid Names Results

Kerria canalis Rajgopal, 2021 (Tachardiidae (= Kerriidae): Kerria)

Nomenclatural History

• Kerria canalis Rajgopal 2021: 61. Type data: INDIA: Tamil Nadu, opposite to Madurai,Corporation Eco Park, Madurai (9°56’09”N 78°08’18”E), on Samanea saman, 11/16/2018, by A. Mohanasundaram. Holotype, female, Type depository: Bengaluru (Bangalore): National Bureau of Agricultural Insect Resources, Bangalore, Karnataka, India; New Delhi: Division of Entomology, National Pusa Collections, Indian Agricultural Research Institute, India; Ranchi: Lac Production Division, ICAR- IINRG, Ranchi, India; accepted valid name Notes: Paratypes: total 15 adult ♀♀, all same data as holotype Illustr.

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• RajgopMoSh2021: pp.65-66 ( Adult (F) ) [species of Kerria]

Remarks

• Systematics: Kerria canalis. differs from other described species of Kerria by having a long, rough, sclerotised trailing canellar band leading from each anterior spiracle towards the venter of the head, sometimes reaching to the mouthparts. This sclerotised band is present even in young, pre-reproductive stage, adult females.Kerria canalis is similar to Kerria dubeyi in having: (i) marginal duct clusters each surrounded by sclerotisation; (ii) anal tubercle hispid near apex, the supra-anal plate wider than long or subequal; (iii) posterior spiracle borne on a sclerotised plate; (iv) antennal apex with 3 long fleshy setae and 2 short setae; (v) star pores usually present near the mouthparts; and (vi) perivulvar pore clusters numbering 5 to 8 but not more. However, K. canalisdiffers from K. dubeyi in having (character states for K. dubeyi given in parentheses): (i) brachia elevated, cylindrical, sclerotised (brachia sessile, club-shaped and only slightly sclerotised); (ii) brachial plate circular, diameter 190‒230 μm (circular, diameter 315–365 μm), (iii) anterior spiracle 280‒390 μm away from brachial crater (0–160 μm away from brachial crater); (iv) long, rough, sclerotised trailing canellar band present below each anterior spiracle, leading towards head and sometimes reaching to mouthparts (sclerotised trailing canellar band absent), and (v) dorsal spine 160‒200 μm long (60–145 μm), pedicel 130‒190 μm long (75–150 μm), with 2 or 3 spinosites at its base (1 or 2 spinosites). K. canalis is not very similar to K. maduraiensis , but they share the same host and type locality.
• Structure: Lac tests dark crimson red, occurring in aggregations; live mature female inside each test globular and dark crimson. Slide-mounted material: body large, globular, 3.12 – 4.01 (4.00) mm long, without the length of anal tubercle (3.7 to 5.05 mm, including length of anal tubercle); 2.62‒3.25 (3.12) mm wide at apex (near mouthparts), 3.50‒4.00 (3.90) mm wide at middle and 2.65‒3.12 (3.07) mm wide at base (near dorsal spine). (Rajgopal, et al., 2021)
• General Remarks: Detailed description, illustration and photograph in Rajgopal, et al., 2021.

Illustrations

Citations