Ismarus tripotini Kim & Lee, 2018

Kim, Chang-Jun, Notton, David G., Ødegaard, Frode & Lee, Jong-Wook, 2018, Review of the Palaearctic species of Ismaridae Thomson, 1858 (Hymenoptera: Diaprioidea), European Journal of Taxonomy 417, pp. 1-38 : 31-32

Ismarus tripotini Kim & Lee sp. nov.

urn:lsid:zoobank.org:act:CF814A3F-632E-4BF1-8FF1-9573697B770B

Fig. 7

Diagnosis

With its small radial cell and darkened trochanter, Ismarus tripotini sp. nov. is similar to I. nigritrochanter Liu, Chen & Xu, 2011 from the Oriental region, but the main difference between these two is the antennal proportions and posterior scutellar rim shape: antennal flagellomeres are distinctly longer than wide in I. nigritrochanter and slightly longer or quadrate in I. tripotini sp. nov.; posterior scutellar rim rounded in I. nigritrochanter and truncate in I. tripotini sp. nov.

Etymology

The species is named tripotini after Pierre Tripotin, who collected the specimen which is now the holotype.

Type material (1 ♀)

Holotype

SOUTH KOREA: ♀, Gangwon Province, Chuncheon-si, Nam-myeon, Udong-ri, 26 Jun. ̅ 30 Jul. 2006, MT at forest edge, P. Tripotin leg. ( CNCI).

Description

Female (holotype)

HEAD. Head in dorsal view much wider than long (54: 32), slightly wider than width of mesosoma (54: 44); POL: 11; LOL: 5; OOL: 11 ( Fig. 7C ); ocelli large, LOL slightly longer than diameter of lateral ocellus (5: 4); vertex behind ocelli nearly flat in lateral view; eye large and without setae; inner orbits, frons and temple with few sparse setae; above antennal sockets, face and cheek with numerous long setae; antenna much shorter than body length (7: 10); scape and pedicel with scattered setae; A3–A15 with dense and short setae; antennal segments in following proportions (length: width): 18: 6; 9: 5; 12: 4; 12: 5; 10: 5; 9: 6; 8:6; 8: 6; 8: 6; 7: 6; 7: 6; 7: 6; 7: 6; 7: 6; 12: 6 ( Fig. 7A ).

MESOSOMA. Pronotum in dorsal view smooth with whitish long setae along the posterior margin; pronotal shoulders angled; upper part of lateral pronotum predominantly smooth and concave in the middle except upper margin with coarsely punctate, lower part of lateral pronotum punctate-rugose; mesoscutum smooth and convex; notauli present anteriorly, oblique long and pit-like, crenulate inside ( Fig. 7D ); humeral sulcus deep, longer than length of tegula (3: 2); scutellum smooth and slightly convex, posterior rim truncate ( Fig. 7D ); anterior scutellar pit large and deep, shorter than remaining scutellar disc, median keel present, weakly crenulate at bottom ( Fig. 7D ); mesopleuron predominantly smooth with deep crenulate line along posterior margin; metapleuron rugose and covered with dense long setae.

WINGS. Fore wing with costal, subcostal, basal, marginal, postmarginal, radial and stigmal veins tubular; medial vein pigmented; radial cell closed, 0.65 × as long as marginal vein and 2.2 × its height ( Fig. 7A ).

LEGS. Fore and mid legs slender; hind tibiae abruptly swollen ( Fig. 7B ).

METASOMA. Petiole short and expanded (13: 17), with irregular longitudinal carinae; tergites completely smooth, with scattered setigerous punctures; base of second tergite with several short costae basally and short and shallow median furrow, extending 0.25 × length of second tergite; sutures between tergites complete and deeply impressed.

COLOUR. Body black; antennae dark brown except A7̅A15 yellowish brown; legs yellow except all coxae and trochanters dark brown; tegulae dark brown; wings hyaline, covered with brown setae.

MEASUREMENTS. Head length 0.38 mm, width 0.68 mm; mesosoma length 0.91 mm, width 0.55 mm; metasoma length 1.13 mm; fore wing length 2.02 mm; total body length 2.42 mm.

Male

Unknown.

Host

Unknown.

Distribution

South Korea.

Figures

Fig. 7. Ismarus tripotini Kim & Lee sp. nov., holotype, ♀. A. Habitus in lateral view. B. Hind tibia. C. Head in dorsal view. D. Mesosoma in dorsal view.