Ismarus madagascariensis, Kim, Chang-Jun, Copeland, Robert S. & Notton, David G., 2018

Kim, Chang-Jun, Copeland, Robert S. & Notton, David G., 2018, The family Ismaridae Thomson (Hymenoptera, Diaprioidea): first record for the Afrotropical region with description of fourteen new species, African Invertebrates 59 (2), pp. 127-163 : 144-146

Ismarus madagascariensis sp. n. Figure 8A− C

Diagnosis.

Ismarus madagascariensis sp. n. is quite distinct from other described Ismarus species in scutellum shape. Scutellum coarsely punctate, convex and posterior rim truncate with prominent posterolateral corners is unique characters among Ismarus .

Type material

(1♀). Holotype, 1♀, MADAGASCAR: near Ambilobe, Ankarana, dry deciduous forest in canyon, IX.1986 (MT), S. V. Fowler leg., CJDAF010092 (deposited in DNPC).

Description.

Holotype (Female). Head. Head in dorsal view much wider than long (26:15), slightly wider than width of mesosoma (29:26) (Fig. 8 A–B); POL: 12; LOL: 7; OOL: 8 (Fig. 8B); ocelli large, LOL slightly longer than diameter of lateral ocellus (13:11); 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 few long setae; antenna much shorter than body length (7:11); scape and pedicel with scattered setae; A3-A15 with dense and short setae; antennal segments in following proportions (length:width): 16:6; 7:4; 10:3; 13:3; 8:4; 7:5; 7:5; 7:5; 7:6; 6:6; 6:6; 6:6; 6:6; 6:6; 10:5 (Fig. 8A).

Mesosoma. Pronotum in dorsal view smooth with deep punctures and whitish long setae along the posterior margin; pronotal shoulders angled; lateral pronotum rugose except smooth and concave in the middle; mesoscutum smooth and convex, with long setae along posterior margin; notauli present anteriorly as large pits (Fig. 8C); humeral sulcus deep and long, longer than length of tegula (15:9); scutellum coarsely punctate and distinctly convex, posterior rim truncate with whitish long setae and prominent posterolateral corners (Fig. 8C); anterior scutellar pit large and deep, as long as rest of scutellar disc, strongly punctate at bottom, median keel distinct (Fig. 8C); mesopleuron smooth with deep crenulate line along posterior margin; metapleuron rugose and covered with dense whitish long setae.

Wings. Radial cell completely closed, 1.5 × as long as wide and 0.6 × as long as marginal vein (Fig. 8A).

Legs. Fore and mid legs slender; hind tibiae incrassate posteriorly, its maximum width slightly wider than hind femora (8:7).

Metasoma. Petiole short and expanded (2:3), with strong costae dorsally; tergites smooth, with scattered setigerous punctures; base of second tergite with several short costae basally and median furrow deep basally to shallow apically, extending 0.33 × length of second tergite; sutures between tergites complete and deeply impressed.

Colour. Body black; antennae yellow except for A12−A15 segment brown; legs and tegulae yellowish-brown to brown; wings hyaline, covered with brown setae.

Measurements. Head length 0.45 mm, width 0.79 mm; mesosoma length 0.87 mm, width 0.81 mm; metasoma length 1.20 mm; fore wing length 1.90 mm; body length 2.51 mm.

Male. Unknown.

Distribution.

Madagascar.

Etymology.

This species is named after the country where the holotype was collected.