Choeras fulviventris Fernandez-Triana & Abdoli, 2019

Abdoli, Parisa, Talebi, Ali Asghar, Farahani, Samira & Fernandez-Triana, Jose, 2019, Three new species of the genus Choeras Mason, 1981 (Hymenoptera: Braconidae, Microgastrinae) from Iran, Zootaxa 4545 (1), pp. 77-92 : 83

Choeras fulviventris Fernandez-Triana & Abdoli sp. nov.

( Figs 4 a–h)

urn:lsid:zoobank.org:act:25C38D2E-7622-4A2A-B4CF-277B741B857F

Type material. Holotype: ♀ ( TMUC), Mazandaran province: Noor, Chamestan, Joorband (36°26′17.28″ N, 52°07′16.62″ E, 272m a.s.l.), 16. viii.2011.

Diagnosis: Vein r not curved and as long as vein 2RS; vein r-m well developed, areolet closed; pterostigma evenly brown or with an indistinct yellow spot basally; vein R1 5.00× as long as distance of vein R1 to vein 3RSb; T1 rugose, narrowed posteriorly, T1 length 1.60× its maximum width; hypopygium largely membranous; propodeum with a rugose median band and a complete median longitudinal carina; metafemur yellow; suture between T2 and T3 more or less developed, crenulated; T3+ yellow.

Description. Body length without ovipositor: 3.10 mm.

Head: Antenna slightly shorter than body; F 2/8/15 length/width: 3.50/2.50/1.25; mouthparts slightly elongated; gena, vertex and lower face densely and rather finely punctate; upper face smooth and setose; lower face with a weak medial longitudinal carina on upper half; clypeus punctured; labrum flat and smooth; malar space length 0.28× basal width of mandible ( Figs 4a,b ); OOL/OD/POL length: 0.15/0.08/ 0.10 mm ( Fig. 4c ).

Mesosoma: Anteromesoscutum length 0.80× its maximum width, densely punctate, posterior area with weak punctures to smooth; notauli not defined; scutoscutellar sulcus with visible crenulation; mesoscutellar disc with sparse punctures to smooth, shiny; side of mesoscutellar disc with wider crenulate depression; metanotum with coarse wrinkles on posterior; propodeum slightly wrinkle to smooth with median longitudinal band of rugosity, and a complete median longitudinal carina ( Fig. 4e ); side of pronotum rugose; propleuron smooth; prepectal carina absent; anterolateral and ventrolateral of mesopleuron punctate, medially smooth; metapleuron smooth with deep medial pit on anterior half ( Fig. 4d ).

Wings: Fore wing. length: 3.10 mm; pterostigma length/width: 2.20; pterostigma slightly shorter than vein R1; vein R1 5.00 × as long as distance of vein R1 to vein 3RSb; vein r as long as vein 2RS; vein 1M/m-cu length: 2.75; vein 3RSa long and distinct; areolet closed; vein 1-CUb slightly shorter than vein 1-CUa ( Fig. 4f ). Hind wing: vein M+CU/1-M length: 1.20; vein cu-a slightly curved; vanal lobe with fringe anteriorly and slightly on posterior, posterior margin partly straight ( Fig. 4g ).

Legs: Metacoxa laterally punctate; mesotibial inner spur slightly longer than outer, not reaching to posterior margin of mesobasitarsus; metafemur/metatibia/metabasitarsus/sum of other segments metatarsus length: 0.80/ 1.00/0.45/ 0.60 mm, respectively; metafemur length/width: 3.40; metatibial spurs length unequal, internal metatibial spurs/metabasitarsus length: 0.50 ( Fig. 4d ).

Metasoma: T1 curved, rugose, T1 length 1.60× its maximum width, T1 anterior half parallel-sided or sub parallel-sided and posterior half gradually narrowed posteriorly; T1 posterior width 2.60× T2 length medially; T2 rugose and transverse; T3/T2 length: 3.50; suture between T2 and T3 more or less developed, crenulated; T3+ smooth ( Fig. 4h ); ovipositor sheath very curved downwards, rather widened posteriorly, ovipositor sheath 0.80× as long as metatibia; hypopygium membranous and apically acute ( Fig. 4d ).

Colouration: Body black; labrum, mandibles, palpi, scape, propleuron, tegulae, parastigma, T3+ yellow; clypeus brown; legs almost yellow to brownish yellow ( Fig. 4d ); wings with brownish yellow setae; veins of wings brown; pterostigma evenly brown or with an indistinct yellow spot basally ( Fig. 4f ).

Etymology: From Latin "fulvus" (yellow) and "venter" (abdomen), referring to the mostly yellow dorsally metasoma.

Notes: This species runs in the key by van Achterberg (2002) to C. ruficornis (Nees, 1834) , it differs from fulviventris sp. nov. as follows: in ruficornis vein r-m of fore wing indistinct and areolet open; vein r distinctly shorter than vein 2RS; T1 posterior width equal to T2 length medially; mesotibial inner spur almost twice than outer, reaching to posterior margin of mesobasitarsus. This species runs in the key by Kotenko (2007) to C. psarae (Wilkinson, 1927) , it differs from C. fulviventris sp. nov. as follows: in psarae metasoma completely yellow; distal half of metacoxa black; distal parts of metatibia and metatarsus blackish brown; body length: 4.70 mm. This species runs in the key by Song et al. (2014) to couplet 8. two branches of the couplet 8 differ from fulviventris sp. nov. as follows: in longitergitus (first branch of the couplet) T1 sharply narrowed posteriorly; T1 and T2 largely smooth, T2 subtriangular. In the second branch of the couplet 8 propodeum strongly rugose; T1 distinctly rectangular and parallel-sided.

Figures

FIGURE 4. Choeras fulviventris female: a. Head, frontal view; b. Head, lateral view; c. Head, dorsal view; d. General habitus, lateral view; e. Mesosoma, dorsal view; f. Fore wing; g. Hind wing; h. Metasoma, dorsal view.