Kerria maduraiensis Ahmad & Ramamurthy

Ahmad, Ayashaa, Sharma, K. K., Vidyarthi, A. S. & Ramani, R., 2013, Three new species of Kerria (Hemiptera: Sternorrhyncha: Coccoidea: Tachardiidae), a redesciption of K. yunnanensis Ou & Hong, and a revised key to species of Kerria, Zootaxa 3620 (4), pp. 518-532 : 523-526

publication ID

https://doi.org/ 10.11646/zootaxa.3620.4.2

publication LSID

lsid:zoobank.org:pub:4A92CEC7-AD49-465A-B6D8-A7FD067BCBF8

DOI

https://doi.org/10.5281/zenodo.6145044

persistent identifier

https://treatment.plazi.org/id/FF5687EC-FF8B-FF9C-FF39-0E566F07FD8E

treatment provided by

Plazi

scientific name

Kerria maduraiensis Ahmad & Ramamurthy
status

sp. nov.

Kerria maduraiensis Ahmad & Ramamurthy sp. nov.

( Figs 2, 5 View FIGURES 1 – 6 , 25–40 View FIGURES 25 – 33 View FIGURES 34 – 40 )

Holotype: India: Tamil Nadu, Madurai, 09.viii.2011, coll. K. K. Sharma, Albizia saman (Fabaceae) , 1 slide (1 adƤ) (NPC). Paratypes: Data same as holotype, 2 slides (6 adƤ) (NPC); 1 slide (4 adƤ) (IINRG-R); 1 slide (3 adƤ) (ANIC) and 1 slide (3 adƤ) (BME).

Adult female

Unmounted material ( Figs 2, 5 View FIGURES 1 – 6 ). Lac test dark brown. Tests occur in aggregations; live mature females globular and crimson. Unmounted cleaned female shown in Figure 5 View FIGURES 1 – 6 .

Mounted material ( Figs 25–40 View FIGURES 25 – 33 View FIGURES 34 – 40 ). Body globular, 1.22–3.96 mm long, 1.04–2.57 mm wide at apex, 1.24–3.55 mm wide at middle and 0.75–2.02 mm wide at base (n=10).

Dorsum: Brachia sessile, club-shaped and slightly sclerotized, 270–630 µm long and 250–450 µm wide. Brachial plate circular, diameter 225–285 µm; brachial crater shallow, central, sub-circular, 140–190 µm wide, with a defined rim, dimples small, obscure, 5 or 6 in number. Anterior spiracle 275–335 µm long and 150–210 µm wide, 85–400 µm away from brachial crater. Ratio of distance of anterior spiracles from crater rim to width of brachial plate 1:0.34–1.60. Ratio of length of anterior spiracle to width of brachial plate 1:1.02–1.42. Dorsal spine well developed 260–380 µm long and 90–125 µm wide at base; pedicel small, slender, slightly sclerotized, 100–180 µm long; spine 125–205 µm long and slightly sclerotized with 2 or 3 spinosities at its base. Ratio of length of pedicel to spine 1:0.57–1.40. Ratio of total length of dorsal spine to width of brachial plate 1:1.04–1.55. Anal tubercle elongated, well developed; pre-anal plate membranous, 170–700 µm long, 270–550 µm wide; supraanal plate heavily sclerotized, hispid near apex, 190–570 µm long, 220–400 µm wide, ratio of length of supra-anal plate to width of plate 1:0.66–1.43. Ratio of length of supra-anal plate to length of brachia 1:0.61–0.94. Anal fringe plates short, fringe maximum length 45–90 µm. Anal ring 6 sectored with 10 setae. Dorsal duct clusters present as a row of ducts on both sides between dorsal spine and base of anal tubercle, each cluster with 8–15 tubular ducts along with dorsal setae and a few spermatoid ducts.

Venter: Antennae 35–55 µm long, 3 segmented, segmentation obscure, apical segment slightly pointed, with 4 long fleshy and 2 short hairy setae. Clypeolabral shield 280–320 µm long, 130–180 µm wide. Labium 2 segmented. Pre-oral lobes elongated, membranous, present along sides of the clypeolabral shield. Post-oral lobes each 140–220 µm long, membranous, dome-shaped. Legs present and vestigial, represented by a small onesegmented leg with rudimentary claws. Posterior spiracles, each 75–90 µm long, smaller than anterior spiracles, without any sclerotized plate; with 40–56 spiracular pores present along one side of spiracle. Marginal duct clusters distinct, 6 in number, each cluster arranged in a convoluted line consisting of 39–42 ducts without any surrounding sclerotization. Perivulvar pore clusters: 8 or 9 on each side of anal tubercle, irregular in shape, each pore with 5–11 loculi. Ventral duct clusters irregular in shape; totalling 3 pairs: first pair anterior to mouthparts, second pair anterolateral to mouthparts and third pair postero-lateral to posterior spiracle. Star pores: 2–7 present near mouthparts.

Comments. Kerria maduraiensis is similar to Kerria fici fici (Green) in having: (i) a hispid supra-anal plate, (ii) a short brachia, (iii) a long dorsal spine with a short pedicel, and (iv) long antennae. However, it differs in having (character states for K. fici fici in brackets): (i) a larger body, 1.22–3.96 mm long (1.08–1.6 mm long); (ii) the supra-anal plate elongated (abbreviated); (iii) 5 or 6 dimples on the brachial plate (4 or 5); (iv) distance between the anterior spiracle and brachial plate 85–400 µm (17–86 µm); (v) anterior spiracle large 275–335 µm (155–241 µm); and (vi) antennal apex with 4 long and 2 short setae (2 long and 2 short setae).

Kerria maduraiensis also resembles Kerria fici jhansiensis ( Misra) in having: (i) sessile brachia and (ii) dorsal spine nearly twice the diameter of the brachial crater, but the new species differs in having (character states for K. jhansiensis in brackets): (i) 5 or 6 dimples on the brachial plate (6–8); (ii) 8 or 9 perivulvar pore clusters on each side at the base of the anal tubercle (10); (iii) each marginal duct cluster with 39–42 ducts (more than 45), and (iv) antennae 3 segmented (2 segmented).

Etymology. This species is named after its locality of collection, i.e., Madurai.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Kerriidae

Genus

Kerria

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