Eodendrus eous (Belokobylskij) Belokobylskij & Chen & Long, 2005

Belokobylskij, Sergey A., Chen, Xuexin & Long, Khuat Dang, 2005, Revision of the genus Eodendrus Belokobylskij (Hymenoptera: Braconidae, Doryctinae), Journal of Natural History 39 (29), pp. 2715-2743 : 2731-2734

Eodendrus eous (Belokobylskij) , comb. nov.

( Figures 44–54 )

Dendrosotinus eous Belokobylskij 1988, p 627 .

Dendrosotinus (Eodendrus) eous: Belokobylskij 1998, p 66 .

Material examined

One female (holotype), Russia, ‘‘ Primorskii krai, 30 km V Spassk [-Dal’niy], les, 3.VII.1984, Belokobylskij’’ ( ZISP); one female, Japan, ‘‘[Honshu] Simogano, Jinza , Kyoto Pref., 6.VIII.1980, R. Shimamoto’ ’ ( NIAES); one female, ‘‘Korea, Gyeonggi, Osansi, Sucheongdong (M. T.) , 31.V.1999, H.-G. Lee’ ’ ( BCIK) .

Description

Female. Body length 3.0– 3.4 mm; fore wing length 2.3–2.8 mm.

Head width 1.3–1.5× its median length. Head behind eyes (dorsal view) weakly convex anteriorly, roundly narrowed posteriorly. Transverse diameter of eye 1.4–1.6× as long as temple ( Figure 45 ). Ocelli small, in triangle with base 1.4× its sides. POL 1.7–2.5× Od, 0.8–1.0× OOL. Eye glabrous, 1.2–1.3× as high as broad. Malar space height 0.3–0.4× height of eye, 0.7–0.9× basal width of mandible ( Figure 46 ). Face width 0.8–1.0× height of eye and 1.2–1.3× height of face and clypeus combined. Malar suture very fine. Clypeus with very narrow lower flange. Clypeal suture distinct and complete. Hypoclypeal depression round, its width 0.6–0.8× distance from edge of depression to eye, 0.45– 0.5× width of face ( Figure 44 ). Hypostomal flange narrow. Antennae ( Figure 47 ) slender, filiform, 28–31-segmented, 1.2–1.3× as long as body. Scapus 1.3–1.5× as long as its maximum width. First flagellar segment weakly curved outside, not flattened, 5.0–5.5× as long as its apical width, almost as long as second segment. Penultimate segment 3.3–4.0× as long as wide, about 0.5 times as long as first flagellar segment, about 0.9 times as long as apical segment; the latter pointed apically.

Mesosoma . Length 2.0–2.2× its height ( Figure 51 ). Mesoscutum highly and almost perpendicularly raised above pronotum. Notauli complete, deep in anterior 0.3, shallow in posterior 0.7, crenulate-rugulose. Prescutellar depression shallow, short, with five to seven carinae, finely rugulose, 0.3× as long as weakly convex scutellum. Subalar depression shallow, wide, striate-rugose. Sternauli shallow, narrow, weakly curved, almost smooth, connected with prepectal carina anteriorly, running along almost entire lower part of mesopleura. Metapleural flange rather short, wide, pointed apically.

Wings. Fore wing ( Figure 48 ) 3.4–3.5× as long as its maximum width. Radial vein arising almost from middle of pterostigma. Metacarpus 1.1–1.2× as long as pterostigma. Second radial abscissa 2.7–3.3× first abscissa, 0.5–0.6× the straight third abscissa, 1.25–1.5× first radiomedial vein. Second radiomedial cell 2.7–3.3× as long as its maximum width, 1.4–1.6× as long as narrow brachial cell. First abscissa of medial vein weakly S-shaped. Recurrent vein 3.5–5.0× second abscissa of medial vein. Distance from nervulus to basal vein 0.5–1.3× nervulus length. Brachial cell closed apically distinctly before recurrent vein. Hind wing ( Figure 49 ) about 5.0× as long as wide. First abscissa of costal vein 0.5–0.55× second abscissa. First abscissa of mediocubital vein 0.4–0.5× as long as second abscissa. Recurrent vein rather short, curved toward base of wing, weakly sclerotized, weakly antefurcal.

Legs. Hind coxa without basoventral tubercle, its length 1.8 times maximum width ( Figure 50 ). Hind femur 3.0–3.3× as long as wide ( Figure 52 ). Hind tibia with six thick spines on apical outside margin ( Figure 53 ). Hind tarsus almost as long as hind tibia. Basitarsus thickened, 0.55–0.6× as long as second to fifth segments combined. Second tarsal segment about 0.6× as long as basitarsus, 1.3–1.4× as long as fifth segment (without pretarsus).

Metasoma. Metasoma ( Figure 54 ) almost as long as head and mesosoma combined. First tergite distinctly and almost linearly widened from base to apex, with small spiracular tubercles in basal 0.3. Acrosternite of first tergite 0.35–0.4× as long as tergite. Maximum width of first tergite about twice its minimum width; length 1.4–1.6× its apical width. Second tergite with more or less distinct, shallow, weakly curved and weakly posteriorly convergent lateral longitudinal light furrows. Length of second tergite 1.1–1.15× its basal width, 1.25–1.5× length of third tergite; basal width of area on second tergite about 1.3× its apical width. Second suture shallow and almost straight, with very weak or without lateral bends. Ovipositor sheath 0.85–0.95× as long as body, 1.7–1.85× as long as metasoma, 1.1–1.2× as long as fore wing.

Sculpture and pubescence. Vertex granulate-coriaceous with fine and dense striation. Frons finely and densely striate and with fine reticulation. Face distinctly transversely striate. Temple finely coriaceous-striate, smooth in below 0.25–0.3. Mesoscutum densely granulate-rugulose, rugosity more distinct on median lobe, with wide rugose medioposterior area. Scutellum finely and densely granulate. Mesopleura granulatecoriaceous or only coriaceous in below half, almost smooth ventrally. Propodeum densely reticulate-rugulose, sometimes only densely punctulate in basolateral areas, with weakly marginate and incomplete areas or areas indistinct, sometimes with dorsal carina in basal half, areola small, but often indistinct. Hind coxae rugose-striate dorsally with fine granulation, punctulate-coriaceous laterally. Hind femur rather densely striate-granulate dorsally, finely coriaceous ventrally. First and second tergites entirely and third tergite in basal 0.3 striate with rugulosity between striae, third tergite laterally densely reticulate. Remaining tergites smooth. Mesoscutum entirely with dense, short and semi-erect hairs. Hind tibia with short, rather dense and semi-erect hairs dorsally, length of these hairs 0.5– 0.8× maximum width of tibia.

Colour. Body dark reddish brown, head ventrally and around eye (sometimes widely) yellowish brown or light reddish brown, often mesoscutum laterally and anteriorly, pronotum mediolaterally or ventrally and mesopleura below half light reddish brown or reddish brown. Antennae dark brown or black, three or four basal segments light reddish brown. Palpi yellow. Legs light brown, hind coxa, femur and usually tibia darker, all tibiae widely infuscate, pale yellow or light brown basally. Ovipositor sheath dark reddish brown, black apically or entirely black. Fore wings faintly infuscate. Pterostigma brown, pale in basal 0.3 and apically.

Male. Unknown.

Discussion

E. eous (Belokobylskij) is the only species of Eodendrus known in the Palaearctic fauna. This species is very similar to E. conspicuus (Granger) from Madagascar, and their differences are indicated in the key.

Distribution. Russia (Primorskii Krai), Japan (Honshu Is.), S. Korea.

Figures

Figures 44–54. Eodendrus eous (Belokobylskij). (44) Head, frontal view. (45) Head, dorsal view. (46) Head, lateral view. (47) Basal and apical segments of antenna. (48) Fore wing. (49) Hind wing. (50) Hind coxa. (51) Mesosoma, lateral view. (52) Hind femur. (53) Hind tibia. (54) Metasoma, dorsal view.