Tuesday, December 27, 2022

[Arachnida • 2022] Colopsus arkavathi • A New Species and New Synonym in the Genus Colopsus Simon, 1902 (Araneae: Salticidae) from India

 

Colopsus arkavathi Caleb 

in Caleb, Lohit, Abhijith & Packiam, 2022

Abstract
A new jumping spider species, Colopsus arkavathi Caleb sp. n., is described from Karnataka, India. A new combination, C. manu (Caleb, Christudhas, Laltanpuii et Chitra, 2014) comb. n. (ex. Hyllus) is proposed; the latter species name is recognized as a senior synonym of C. cinereus Kanesharatnam et Benjamin, 2021 syn.n. A detailed description, illustrations, and a map showing the records of all theknown Indian Colopsus congeners are provided.

KEY WORDS: Aranei, description, Karnataka, Sri Lanka, taxonomy

General appearance of Colopsus arkavathi sp. n.,
 male (1–3) and female (4–6). 1, 4 — dorsal view; 2, 5 — dorso-lateral view; 3, 6 — front view.

Life history and habitat of Colopsus arkavathi sp. n.
29, 30 — female guarding an egg sac; 31 — egg sac laid in a dried, curled leaf;
32 — egg sac; 33 — first instar spiderlings; 34 — juvenile after consuming a fruit fly;
35 — juvenile exhibiting cannibalism (feeding on its sibling); 36 — subadult specimen;
37, 38 — habitat.

Colopsus arkavathi Caleb sp. n.

DIAGNOSIS. The male of C. arkavathi sp.n. is most similar to that of C. manu (see below), but can be easily distinguished by the v-shaped white marking in the ocular area and three yellowish white clypeal stripes (absent in C. manu); the palpal tibia as long as wide (longer than wide in C. manu); RTA with a broad base, protruding laterally and benting at an obtuse angle with the tip directed apically in ventral view (gently curved, relatively longer, thorn-like in C. manu). The female can be distinguished by the broader, laterally aligned copulatory ducts (cf. Figs 1–3, 15, 16 & 22–24 with Figs 17–21). 

 ETYMOLOGY. The specific epithet is a noun in apposition taken after the River Arkavathi originating in Nandi Hills. The river has been running dry and polluted due to urbanization and industrialization for almost half a century.


John T.D. Caleb, Y.T. Lohit, A.P.C. Abhijith and Soosaimanickam Maria Packiam. 2022. A New Species and New Synonym in the Genus Colopsus Simon, 1902 (Araneae: Salticidae: Plexippina) from India. Arthropoda Selecta. 31(4); 470–476. DOI: 10.15298/arthsel.31.4.07
https://kmkjournals.com/upload/PDF/ArthropodaSelecta/31/31_4_470_476_Caleb_et_al_for_Inet.pdf