Dendrosotinus (Gildoria) maculipennis Belokobylskij, 2021

Belokobylskij, Sergey A. & Achterberg, Cornelis Van, 2021, Review of the braconid parasitoid subfamily Doryctinae (Hymenoptera, Braconidae) from the United Arab Emirates and Yemen, European Journal of Taxonomy 765 (1), pp. 1-143 : 10-14

Dendrosotinus (Gildoria) maculipennis Belokobylskij sp. nov.

urn:lsid:zoobank.org:act:FE8312CB-C5B4-41B3-955F-6276D64631A6

Figs 3–4

Comparative diagnosis

This new species is similar to D. (G.) grandis (Fahringer, 1930) known only from Spain, but differs from it by the mediocubital vein (M+CU1) of fore wing distinctly curved in apical half (nearly straight in D. grandis ), vertex densely irregularly transversely striate with dense and numerous rugosity (mainly granulate in D. grandis ), radial vein (r) arising behind middle of pterostigma (from middle in D. grandis ), brachial (subdiscal) cell closed distally distinctly before recurrent (m-cu) vein (weakly before vein in D. grandis ), second radiomedial (submarginal) cell not narrowed distally (distinctly narrowed in D. grandis ) and hind basitarsus short and thick (long and slender in D. grandis ).

Etymology

Name derived from a combination of ‘ maculis ’ (Latin for ‘spotted’) and ‘ pennis ’ (Latin for ‘plumage’) because of the spotted colouration of the fore wing.

Material examined

Holotype YEMEN • ♀; “Yemen, Al Kowd , ii.2001, light tr., no 5484, A.v. Harten & S. Al Haruri. RMNH’01”; RMNH.

Paratypes YEMEN • 3 ♀♀; “Yemen, Al Kowd , ii.2000, light tr., no 4431, A.v. Harten & S. Al Haruri. RMNH’01”; RMNH • 1 ♀; same label data as for preceding; ZISP • 1 ♀; “Yemen (no 2989), Ta’izz, light trap, 1–3. iv.1998, A.v. Harten & Ahmad Ahwad, RMNH’98”; RMNH • 1 ♀; “ Yemen , Ta’izz, x.1999, light tr., no 4249 A.v. Harten & A. Awad, RMNH’01”; RMNH .

Description

Female

MEASUREMENTS. Body length 2.2–2.8 mm; fore wing length 1.8–1.9 mm.

HEAD. Head width (dorsal view) 1.5–1.6 times its median length, 1.2 times width of mesoscutum. Head behind eyes (dorsal view) rather distinctly convex-roundly narrowed. Transverse diameter of eye (dorsal view) 1.9–2.3 times longer than temple. Ocelli small, arranged in triangle with base 1.3–1.4 times its sides. POL 1.7–2.0 times Od, 0.7–0.8 times OOL. Eye glabrous, its maximum diameter 1.2 times minimum diameter. Malar space 0.4 times maximum diameter of eye, 0.9–1.0 times basal width of mandible. Face convex, its width 0.9–1.0 times maximum diameter of eye, 1.3–1.4 times height of face and clypeus combined. Clypeal suture almost complete, distinct laterally and fine to very fine dorsally. Hypoclypeal depression medium-sized and rounded, its width 0.7 times shortest distance from edge to eye, 0.30–0.35 times width of face. Occipital carina dorsally complete and not broken toward ocellar triangle, not reaching below hypostomal carina and obliterated a short distance before mandible base. Hypostomal flange distinct.

ANTENNA. Antenna rather slender, filiform, 21–22-segmented, 0.9–1.0 times as long as body. Scape 1.3– 1.5 times longer than maximum width. First flagellar segment 4.2–4.5 times longer than apical width, about as long as second segment. Penultimate segment 3.0–3.2 times longer than width, 0.6–0.9 times as long as first segment, 0.9–1.0 times as long as apical segment; the latter weakly acuminate apically and without spine.

MESOSOMA. Mesosoma not depressed, its maximum length 1.7–1.8 times its maximum height. Pronotal carina distinct, situated submedially. Mesoscutum (lateral view) high, subvertical roundly elevated above pronotum, its median lobe (dorsal view) protruding forwards, convex anteriorly and without anterolateral corners, with complete, fine, rather deep posteriorly and very shallow anteriorly longitudinal median furrow; mesoscutum in dorsal view 1.0–1.1 times as long as wide. Notauli almost complete, deep in anterior half and shallow in posterior half, crenulate. Prescutellar depression rather deep, same length medially and laterally, evenly curved, with 6–8 carinae, almost smooth between carinae, 0.25–0.30 times as long as scutellum. Scutellum convex, with distinct lateral carinae, 1.1–1.2 times longer than maximum anterior width. Subalar depression rather wide, shallow, rugulose-reticulate. Precoxal sulcus rather deep and wide, densely reticulate, running along anterior half of lower part of mesopleuron. Metanotum with low, wide and distally acuminate medio-dorsal tubercle (lateral view). Metapleural flange (lobe) wide, short, subrounded distally. Propodeum weakly convex, with small lateral tubercles.

WINGS. Fore wing 3.5–3.6 times longer than wide. Pterostigma rather narrow, 4.0–4.5 times longer than its maximum width. Radial vein (r) arising behind middle of pterostigma, from basal 0.55–0.60. Radial (marginal) cell not shortened, metacarpus (1-R1) 1.0–1.1 times as long as pterostigma. Second radial abscissa (3-SR) 1.7–2.0 times longer than first abscissa (r) and forming with it a weakly obtuse angle, 0.50–0.55 times as long as straight third abscissa (SR1), 1.1 times longer than straight first radiomedial vein (2-SR). Second radiomedial (submarginal) cell not narrowed distally, its length 3.2–3.4 times maximum width, 1.8–2.0 times length of narrow brachial (subdiscal) cell. Second abscissa of medial vein (2-SR+M) short, 0.35–0.40 times as long as recurrent vein (m-cu). Third abscissa of medial vein (2-M) almost straight. Nervulus (cu-a) short, distinct, strongly postfurcal, distance between basal vein (1-M) and nervulus (cu-a) 1.5–1.8 times nervulus length. Mediocubital vein (M+CU1) rather evenly and distinctly curved to longitudinal anal vein (1-1A). Narrow brachial (subdiscal) cell closed apically distinctly before recurrent vein (m-cu), apically reclivous and straight. Parallel vein (CU1a) interstitial. Hind wing 4.8–5.3 times longer than its maximum width. First costal abscissa (C+SC+R) 0.7–1.0 times as long as second abscissa (1-SC+R). First abscissa of mediocubital vein (M+CU) 0.6–0.7 times as long as second and third abscissae (1-M) combined. Recurrent vein (m-cu) rather long, unsclerotised and not pigmented, distinctly antefurcal, strongly oblique towards base of wing.

LEGS. Hind coxa without basoventral tubercle, but with distinct convex basoventral corner, 1.4–1.6 times longer than maximum width. Hind femur elongate-oval, 2.5–2.9 times longer than wide. Hind tibia without spines on outer distal margin. Hind tarsus 1.0–1.1 times longer than hind tibia. Hind basitarsus thickened, 0.50–0.55 times as long as remaining segments combined. Second segment of hind tarsus 0.60–0.65 times as long as basitarsus, 1.2–1.4 times longer than narrow fifth segment (without pretarsus).

METASOMA. Metasoma 1.2–1.3 times longer than mesosoma and head combined. First metasomal tergite rather long and wide, with very weak spiracular protuberances in anterior third, distinctly and almost linearly widened from base to apex. Length of first tergite 1.1–1.2 times its maximum posterior width; posterior width 2.5–2.6 times its minimum anterior width. Median length of second tergite 0.6–0.7 times its anterior width, almost equal to length of third tergite. Second suture fine to very fine especially medially, weakly evenly curved. Median length of second and third tergite combined 1.2–1.4 times anterior width of second tergite, 0.9 times their maximum width. Ovipositor sheath 0.5–0.6 times as long as metasoma, 0.8–1.1 times as long as mesosoma, 0.4–0.5 times as long as fore wing.

SCULPTURE AND PUBESCENCE. Vertex entirely and densely irregularly transversely striate with very dense and numerous rugosity; frons densely transversely striate with dense rugosity between striae, striae medially angled down; temple obliquely striate-rugulose in upper two-third, finely rugulose to smooth in lower third; face densely transversely striate, almost smooth medially on narrow area. Mesosoma almost entirely densely transversely striate-rugulose, partly with fine granulation; scutellum entirely densely and finely transversely striate-rugulose. Mesopleuron striate-rugulose in upper half, densely reticulatecoriaceous in lower half. Propodeum without delineated areas, with distinct median longitudinal carina in anterior third, entirely densely areolate-reticulate. Hind coxa rugulose-striate in upper half and densely finely reticulate-coriaceous in lower half; hind femur dorsally and laterally densely rugulosestriate, finely reticulate- coriaceous ventrally. First metasomal tergite entirely longitudinally striate with very dense reticulation between striae, without distinct dorsal carinae. Second tergite entirely and third in anterior third densely striate with dense reticulation, striae laterally curved; third tergite medially densely small reticulate-coriaceous on short area and laterally reticulate-coriaceous on long area; smooth posteriorly. Following tergites entirely smooth. Vertex mainly with sparse short almost appressed pale setae. Mesoscutum entirely with short, very dense yellow setae. Setae of hind tibia semi-erect, short and rather sparse, their length on dorsal surface 0.3–0.4 times maximum width of tibia.

COLOUR. Body mainly light reddish brown, darkened dorsally, rarely body mainly reddish brown and darker dorsally, head below and metasoma behind first or third tergite brownish yellow to almost yellow; rarely body distinctly darkened, reddish brown. Palpi pale yellow. Antenna mainly yellow to brownish yellow or sometimes reddish brown, 7–11 th apical segments brown to dark brown or black; rarely (in dark form) antenna mainly reddish brown to black, six anterior segments faintly paler. Legs mainly yellow with brownish tint, rarely brownish yellow; hind coxa and femur pale brown to yellowish brown. Ovipositor sheath brown in anterior half, almost black in posterior half. Fore wing distinctly maculate, with wide infuscate transverse stripes along basal cell, below middle of pterostigma and subdistally, hyaline on remaining large areas. Pterostigma dark brown in apical half, whitish yellow or white in basal half and and apically at short distance.

Male

Unknown.

Distribution

Yemen.

Figures

Fig. 3.Dendrosotinus (Gildoria) maculipennis Belokobylskij sp. nov., holotype, ♀ (RMNH). A. Habitus, lateral view. B. Head, front view. C. Basal segments of antenna. D. Apical segments of antenna. E. Head and mesosoma, dorsal view. F. Head and mesosoma, lateral view. G. Wings, distal part. H. Hind leg. I. Propodeum and basal part of metasoma.

Fig. 4. Dendrosotinus (Gildoria) maculipennis Belokobylskij sp. nov., holotype, ♀ (RMNH). A. Wings. B. Metasoma, dorsal view. C. Metasoma, lateral view.