Arthrolytus keltoni Doğanlar 2018, nov.sp.
Creators: name: Doğanlar, Mikdat
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Arthrolytus
Arthrolytus keltoni

description: Arthrolytus keltoni nov.sp. (Figs 1o, 3o)
T y p e m a t e r i a l s: Holotype ♀, USA: North Carolina, Highland, 27.viii. 1957, Leg. L. A. Kelton, deposited in the CNC.
E t y m o l o g y: The name is derived from the name of Dr. P.C. Kelton who collected the holotype.
D i a g n o s i s: ♀: Malar space 0.36x length of an eye; Antenna with combined length of pedicel plus flagellum 2.52x as long as scape; anelli plus F1 1.63x as long as pedicellus; F1 2.25x as long as width; F2-F4 distincly longer than width; F5-F6 quadrate, club 1.3x as long as F1. Forewing with costal cell of fore wing 8.4 times as long as broad; submarginal vein 1.32x as long as marginal vein; and marginal vein 1.2x stigmal vein; post marginal vein 1.12x as long as marginal vein 1.46x as long as stigmal vein. Propodeum with lateral carina complete, transverse costula present midway between base and apex of propodeum; surface of propodeum anterior to this costula sculptured, surface posterior to costula with some carinae; strong median carina present. Body black, metasoma without black spot, 0.33 longer than mesosoma.
D e s c r i p t i o n: The diagnostic characters of this species are given above and need not be repeated here. Some additional characters are the following:
♀: Length 3.5 mm. Body black, Metasoma without black spot; Body black, antennal scape pale, flagellum brown; pedicel and legs beyond coxae yellow, F1 and club testaceous; Fore wing shaded behind marginal vein; forewing with black spot. Fore wing shaded behind marginal vein.
Head in dorsal view 2.1 times as broad as long; with clypeal margin slightly forwarded, minute, closely set slightly irregular rugae converging on anterior mouth opening; Right mandible with 4 teeth, left mandible with 3 teeth; POL 1.5x OOL; Antenna inserted low, slightly above level of ventral edge of eyes; Antenna (Fig. 1o) with combined length of pedicel plus flagellum (116) as long as 1.12x width of head; Relative measurement of antenna: scape 46:7; pedicel 13:6; second anellus twice as long as first anellus; F1 18:8; F2 13:9; F3-F4 12:10; F5-F6 10:10; club 21:12. Linear sensillae on F1 1+ 3 in 2 rows; F2-F3 2+ 3 in 2 rows; F4 3+ 4 in 2 rows; F5-F6 4+ 5 in 2 rows, C1-C2 5+ 6 in 2 rows, C3 5 in a row.
Mesosoma 1.4x as long as width; 0.82x as wide as head; scutellum 1.15x as long as width; 1.87x as long as propodeum. Forewing (Fig. 3o) with Relativ measurements of m: pm: st= 60: 67: 46.
Metasoma slightly wider than mesosoma; gastral terga 1-2 completely bare dorsally, 3- 5 th terga with a few setae near lateral margins, 6 th and 7 th with moderately dense, dorsal bristles.
♂: Unknown.
C o m p a r a t i v e n o t e s: Arthrolytus keltoni nov.sp. is similar to Arthrolytus maculipennis (WALKER 1835) in having antenna inserted low, slightly above level of ventral edge of eyes; malar space hardly one third length of an eye; forewing with black spot; F1 2.2x as long as width. But it differs from A. maculipennis in having forewing with costal cell of fore wing 8.4 times as long as broad; antenna with anelli plus F1 1.63x as long as pedicellus; F2-F4 distincly longer than width; F5-F6 quadrate, club 1.3x as long as F1 (in A. maculipennis forewing with costal cell of fore wing 10.5-11 times as long as broad; sometimes relatively longer; antenna with anelli plus F1 2.4x as long as pedicellus; F2 slightly longer than width; F3 quadrate; F4 slightly, F5-F6 distinctly transverse. club 0.88x as long as F1).
D i s t r i b u t i o n: USA: North Carolina, highland.
description: Published as part of Doğanlar, Mikdat, 2018, World species of Arthrolytus (Hymenoptera Pteromalidae, Pteromalinae), with description of new species, pp. 255-289 in Linzer biologische Beiträge 50 (1) on pages 282-283, DOI: 10.5281/zenodo.3985426