Homalotylus noyesi Krishnachaitanya and Manickavasagam, 2016

Tirunagaru, Krishnachaitanya, Sagadai, Manickavasagam & Kumar, Abhinav, 2016, Five new species of Homalotylus Mayr (Hymenoptera: Encyrtidae) - from India with a key to Indian species, Journal of Natural History 50, pp. 2369-2387 : 2384-2386

publication ID

https://doi.org/ 10.1080/00222933.2016.1193650

DOI

https://doi.org/10.5281/zenodo.4328603

persistent identifier

https://treatment.plazi.org/id/E56087D3-4B2F-FFD8-FF14-FF76FB3B444F

treatment provided by

Carolina

scientific name

Homalotylus noyesi Krishnachaitanya and Manickavasagam
status

sp. nov.

Homalotylus noyesi Krishnachaitanya and Manickavasagam , sp. nov.

( Figure 6 View Figure 6 )

Female

Holotype. Length, 1.51 mm. Body orange yellow to brown (Figure (6a)). Head with frontovertex and scrobal cavity metallic yellow, between ocellar triangle dusky brown, ocelli transparent; eye with silvery white setae. Antenna with radicle, scape and pedicel yellow to light brown, F1 – F4 dorsally brown, ventrally light brown, F5 – F6 and clava white. Mesosoma, dorsal view of mesosoma shiny brownish yellow; pronotum medially light brown, laterally metallic yellow, mid lobe of mesocutum light brown, lateral lobes yellow with silvery white setae; tegula in basal half white, apical half light brown; scutellum yellow with dark brown setae; propodeum medially yellowish brown, laterally light brown; mesopleuron yellowish with a descending brown band. Fore wing basally infuscate, followed by hyaline area till middle 1/3, with a brown band in middle 1/3, apical 1/3 lightly infuscate; hind wing hyaline. Legs with all coxae and trochanters white; fore and middle femur white, dorsally brown; fore tibia yellow, mid tibia dorsoventrally white, laterally brown, hind tibia ventrally dark brown, dorsally white; fore tarsi yellow, middle and hind tarsus white. Metasoma dorsally brown, laterally and ventrally yellowish brown with base whitish; hypopygium yellowish brown, ovipositor sheath yellow.

Head in frontal view broader than high (39:36); eye in frontal view 1.2× as high as wide; frontovertex with scattered polygonal reticulate sculpture, interantennal prominence, antennal scrobes with imbricate sculpture; mandible with 3 acute teeth. Antenna (Figure (6b)) with scape slender, 7× as long as wide; pedicel 2.25× as long as wide; funicle length and width gradually increasing, F1 1.1× as long as wide and F2 – F6 quadrate; clava obliquely truncate, 2.7× as long as wide. Measurements: head height: width, 36:39; eye height:width, 17:14; frontovertex width 11; POL 3; OOL 0; OCL 2.5; AOL 3.5; scape length:width, 28:4; pedicel length:width, 9:4; funicle length:width, F1, 4:3.5; F2, 4:4; F3,4:4; F4,4.5:4.5; F5, 4.5:4.5; F6, 4.5:4.7; clava length:width, 16:6.

Mesosoma 1.4× as long as wide; mesoscutum 1.6× as wide as long; scutellum 1× as long as wide; pronotum and mesoscutum with imbricate, axillae and scutellum with punctate-reticulate sculpture. Fore wing (Figure (6c)) 2.8× as long as wide; costal cell 14.7× as long as wide; marginal vein slightly longer than wide; stigmal vein 1.5× as long as postmarginal vein. Mid tibia 2.6× as long as mid tibial spur; mid basitarsus with 14 pegs and as long as mid tibial spur; mid tibial spur serrate. Measurements: mesosoma length:width, 40:29; mesoscutum length:width, 18:29; scutellum length:width, 23:22; forewing length:width, 101:36; costal cell length: width, 44:3; marginal vein length:width, 3.5:2.5; postmarginal vein length, 5, stigmal vein length, 7.5; mid tibia length, 42; mid basitarsus length, 16; mid tibial spur length, 16.

Metasoma with posterior margin of T 1 – T 3 convex; T 4 posterior margin slightly convex; T 5 with posterior margin more or less straight and T 6 concave; syntergum medially, broadly V− shaped; T 2 – T 6 each with an anterior, median incision. Hypopygium extending to apex of gaster; ovipositor (Figure (6d)) exserted, 1.5 × as long as mid tibia. Measurements: metasoma length 53; exserted ovipositor length, 20; ovipositor length, 64.

Material examined

Holotype, 1 f# (on slide under 4 cover slips) labelled ‘ INDIA: Bihar, Banka, Bounsi (N25.14° E86.56°), 08.i.2014, YPT, Abhinav Kumar ’ ( EDAU, Registration No. Enc /010/2015). GoogleMaps

Host

Unknown.

Male

Unknown.

Comments

This species is similar to H. varicolorus in having the ovipositor exserted, scape 7× as long as broad and F1 – F4 light brown, and F6 and clava white, but differs in the following characters: ovipositor 1.5× as long as mid tibia; pedicel 2.25× as long as wide; fore wing 2.8× as long as wide; clava length 2.7× as long as wide; head frontally 0.9× as long as wide; stigmal vein 1.5× as long as postmarginal vein (ovipositor 2.2× as long as mid tibia; pedicel 2.75× as long as wide; fore wing 3× as long as wide; clava 3.3× as long as wide; head frontally 1× as long as wide; stigmal vein 1.8× as long as post marginal vein in H. varicolorus ).

Etymology

This species is named after the encyrtid specialist Dr. John. S. Noyes of the NHM, London.

T

Tavera, Department of Geology and Geophysics

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Encyrtidae

Genus

Homalotylus

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