Leucospis insularis Kirby, 1900

Janšta, Petr, 2012, Description of male of Leucospis insularis (Hymenoptera: Chalcidoidea: Leucospidae) with new records and check-list of Chalcidoidea of Socotra Island, Acta Entomologica Musei Nationalis Pragae 52, pp. 517-523 : 518-520

Leucospis insularis Kirby, 1900

( Figs. 1–5 )

Leucospis insularis Kirby, 1900: 13 (original description). Leucospis insularis : SCHMID- EGGER (2010): 324 (key to Leucospis species from Arabian Peninsula).

Type material. HOLOTYPE: ♀ ( BMNH), ‘ Sokotra : Jena-agahan (1200 ft, 12. I. [18]99)’ [not studied]. Material examined. SOCOTRA ISLAND: Hadiboh env., N 12°65′02′′ E 54°02′04′′, ca. 10–100 m, 21.xi.–12.xii.2003, P. Kabátek leg., Yemen – Soqotra 2003 expedition, Jan Farkač, Petr Kabátek & David Král, 1 J ( CUPC).

Description of male. Body length 5.9 mm. Head black, antenna including scape and pedicel, base of mandibles and maxillolabial complex rusty red; tooth on mandibles, pedicel, anellus, F3–F7 and clava partly black ( Figs. 1–3 ). Pronotum rusty red with transverse yellow line in middle; nearly whole mesonotum, dorsellum, propleuron and mesopleuron black; tegulae, prepectus, extreme side of lateral lobe of mesoscutum, acropleuron, metapleuron, frenal area of scutellum, distal part of dorsellum and propodeum rusty red; on scutelum yellow transverse line between black and rusty red part of scutellum. All legs rusty red except yellow mesotibiae, dorsoapical part of metacoxae, basoventral part of metafemora and black teeth on metafemora ( Figs. 1, 5 ). Abdomen almost completely rusty red, Gt3 behind its basal half with yellow transverse line interrupted in middle. Wings slightly infumate but hyaline on disc; wing venation and setae brown with hardly infumate region of disc below wing venation ( Figs. 1, 4 ).

Head dense but finely punctured, meso- and metasoma with coarse punctuation, pubescens of body very long, thin and white. Head 1.05 times as broad as mesosoma and about 2.24 times as broad as long. Temples converging, about 0.19 times of length of head. Head 1.24 times as broad as high, mouth 3.06 times as wide as malar space, latter 0.28 times of length of eye. Eyes with distinct setae (clearly visible using 20–30x magnification), 1.67 times as long as wide. Ocelli large: POL: OOL 2.45, OOL: OD 1.57. Posterior margin of middle ocellus reaches imaginary line joining lateral ocelli. Scrobal depression deep and distinctly transversely rugose on whole surface, outer margins of scrobal depression margined by sharp carina. Interantennal process well developed, reaching 1/3 of scape. Lower margin of clypeus bilobed, median tooth small but conspicuous. Antenna as follows: pedicel plus flagellum as long as head, scapus 1.6 times as long as wide, not reaching anterior ocellus, 0.27 times as long as length of eye. Pedicel 1.29 times as long as long, not as wide as annellus in broadenest part. Scapus and pedicel more or less shiny, covered with dense setation, setae are longer than those on rest of antenna.Anellus 1.25 times as long as wide. Flagellum stout, F 3 –F 7 transverse (ratio of measurements of F 1 –F 7: 11/10, 12/12, 11/12, 11/13, 11/14, 11/15, 10/14), clava 1.5 times as long. Flagellum dull, covered with short dense setation.

Pronotal collar convex, sides subparallel, disc of pronotum with three distinct cuticular carina, slightly angulate in middle – discal carina just behind and not longer that yellow transverse line on collar, weak and slightly lower than submarginal one; submarginal carina (carina between discal and marginal carina) of same length as marginal carina and as yellow transverse line. Pronotum 1.60 times as wide as long, mesonotum 0.85 times as wide as long, propodeum 1.90 times as wide (measured in widenest part) as long (measured in medial carina area). Propodeum without medial carina. Fore wing 3.45 times as long as wide; relative measurements – marginal:postmarginal:stigmal vein as 15:23:88. Metafemur relatively slender, 2.18 times as long as wide with nine gradually reduced teeth on posterior side; first tooth broadly triangular, twice as long as second tooth, all teeth except first one slender triangular, third tooth 0.75 times as long as first tooth.

Metasoma nearly as long as head plus mesosoma, metasoma moderatelly clavate, 2.11 times as long as wide, first gastral segment (Gt1) as long as wide and 0.50 times as wide as Gt3.

Diagnosis. The recently collected male fits well to the female type in the key by BOUČEK (1974), i.e. couplet 9. The species is easily recognizable due to the unusually long and thin pubescence, slender metafemora and weak discal carina.

Bionomy. Unknown.

Distribution. Species endemic to Socotra Island, so far known from two specimens only.

Figures

Figs. 1–5. Leucospis insularis Kirby, 1900, male. 1 – habitus, lateral view; 2 – head, frontal view; 3 – antenna, dorsal view; 4 – forewing, dorsal view; 5 – femur, lateral view.