Phanerotoma microdonta, Achterberg, 2021

Achterberg, Cornelis van, 2021, The tribe Phanerotomini (Hymenoptera, Braconidae, Cheloninae) of the Arabian Peninsula, with special reference to the United Arab Emirates and Yemen, ZooKeys 1014, pp. 1-118 : 1

Phanerotoma microdonta sp. nov. Figs 250-252 , 253-263

Type material.

Holotype, ♀ (RMNH), " United Arab Emirates, Sharjah Desert Park (2049-2074), light tr[ap], 30.iv.-31.v.2005, 25°17'N, 55°42'E, A. v. Harten, RMNH’05”. Paratypes: 1♀: Same data as holotype; 8♀: Idem, 21-29.iii.2005; 7♀, 2♂: Idem, 29.iii.-6.iv.2005; 5♀, 8♂: Idem, 6-13.iv.2005; 8♀, 17♂: Idem, 13-23.iv.2005; 5♀: Idem, 30.iv.-7.v.2005; 13♀, 9♂: Idem, 23-30.iv.2005; 4♀, 5♂: Idem, 13-23.iv.2005; 3♀, 1♂: Idem, 22.ii.-9.iii.2005; 1♀, 1♂: Idem, 25.i.-22.ii.2005; 1♀: Idem, 17.ii.-3.iii.2007; 1♀: Idem, 4.viii.-4.ix.2008; 1♀: "United Arab Emirates, al-Ajban (11858), light trap, 17.iv.-29.v.2006, 24°36'N, 55°01'E, A. v. Harten, RMNH’10”; 1♂: Idem, 22.x.-9.xi.2005, Malaise trap; 1♀: Idem, 1.iv.-2.v.2006, Malaise trap; 1♂: Idem, 25.iii.-2.iv.2006, Malaise trap; 1♀, 1♂: Idem, 7-28.xii.2006, Malaise & light trap; 1♂: "United Arab Emirates, N of Ajman (6338-6342), water traps, 9-28.xii.2006, A. v. Harten, RMNH’07”; 1♀: Idem, 1.ii.-16.iii.2009; 2♀: "United Arab Emirates, NARC near Sweihan (1410), light trap, 1.ii.-14.iii.2005, 24°24'N, 55°26'E, A. v. Harten, RMNH’05”; 1♂: Idem, 9-20.iv.2005; 1♀: Idem, 28.iii.-2.iv.2005; 1♂: "United Arab Emirates, Sharjah (1840-1889), light trap, 6-30.vi.2005, 25°21'N, 55°24'E, A. v. Harten, RMNH’05”; 2♂: "United Arab Emirates, Hatta (11572), light trap, 21.vi.-19.vii.2006, 24°49'N, 56°07'E, A. v. Harten, RMNH’09”; 3♀: " Yemen (5404), Haman 'Ali, from coffee berries (with Ceratitis capitata ?), 14.iii.2001, A. van Harten, RMNH’02”; 5♀, "Yemen (7501), Al Kadan, light trap, i.2003, A. van Harten & A.R. Al Yarimi, RMNH’03”; 3♀, 3♂: "Yemen (8136), Al Kowd, light trap, ix.2003, A. van Harten & S. Al Haruri, RMNH’03”; 2♀: Idem, 27-31.vii.2001; 1♂: Idem, 8-12.vii.2001; 1♀: Idem, vi.2002; 1♀: Idem, i.-iii.2003; 1♂: Idem, v.-vi.2000; 1♀: Idem, viii.2000; 3♀: Idem, ix.1999; 1♀: Idem, xi.2000; 1♀: Idem, vii.-ix.2001; 2♀: Idem, 17-21.vii.2001.

Diagnosis.

Marginal cell of fore wing small, distance between wing apex and vein 1-R1 0.7-1.2 × as long as pterostigma (Fig. 253 ); pterostigma much wider than length of vein 3-SR; temple mainly granulate; parastigma rather large and yellow; vein 1-M of fore wing pale yellowish; second tooth of mandible ca. 0.3 × length of apical tooth (Fig. 258 ); hind tibia with distinct subbasal dark brown patch, rarely only faintly indicated. Easily confused with P. masiana Fahringer, from Arabian Peninsula, Egypt, Iran and Libya, but inner tooth of mandible small, ca. 0.3 × as long as apical tooth (medium-sized to large and 0.6-0.8 × in P. masiana ); hind tibia usually with distinct subbasal dark patch (usually absent) and third metasomal tergite evenly sculptured and rather matt (rarely intermediate; partly smooth and shiny medially). Similar to P. stenochora , but differs by the densely sculptured third metasomal tergite (smooth in P. stenochora ), distance between wing apex and vein 1-R1 0.6-1.1 × vein 1-R1 (ca. twice), temple granulate (finely rugose), near apical third of antenna of ♀ without shortened segments (present), and first discal cell of fore wing much higher than first subdiscal cell (approx. equally high).

Description.

Female, holotype, length of body (excluding ovipositor) 2.6 mm; antenna 2.0 mm; fore wing 2.0 mm; visible part of ovipositor sheath 0.4 mm (only apex setose).

Head. Width 1.4 × median length in anterior view and part of head above eye in lateral view 0.2 × height of eye (Fig. 261 ); antenna with 23 segments and as long as fore wing, near apical third segments elongate and longer than wide, narrowed apically and five apical segments moniliform (Figs 262 , 263 ) and apical segment with minute spine, third, fourth and penultimate segments 2.4, 2.0 and 1.0 × longer than wide in lateral view, respectively; area of stemmaticum granulate; OOL: diameter of posterior ocellus: POL = 10: 4: 5; length of eye 3.8 × temple in dorsal view (Fig. 259 ); frons granulate-rugulose laterally, largely granulate medially and without median carina; vertex granulate-rugulose and rather shiny; temple granulate and with satin sheen; face granulate and with small median bump dorsally but no distinct median carina; clypeus superficially granulate, rather shiny and distinctly narrower than face and with two minute teeth medio-ventrally (Fig. 260 ); eye large, strongly convex and in lateral view 2.5 × (measured medially) temple (Fig. 261 ), in anterior view slightly higher than minimum width of face; upper condyle of mandible below lower level of eyes (Fig. 260 ); malar space granulate, with satin sheen and 0.9 × as long as basal width of mandible; lower tooth of mandible 0.3 × as long as apical tooth (Fig. 258 ).

Mesosoma (Figs 250 , 254 ). Length 1.5 × its width in lateral view; side of pronotum rugose, but antero-medially and postero-ventrally partly smooth; propleuron posteriorly evenly convex; mesosternum largely superficially granulate and shiny; mesoscutum densely rugulose combined with granules in between; scutellum distinctly granulate and rather matt; notauli not indicated; scutellar sulcus narrow and with ten carinae (Fig. 254 ); metanotum without median carina anteriorly and no tooth posteriorly; propodeum coarsely reticulate-rugose, without distinct median and transverse carinae, and latero-posteriorly not tuberculate. Wings. Fore wing 2.8 × longer than its maximum width; length of 1-R1 0.8 × as long as pterostigma; distance between wing apex and vein 1-R1 equal to length of vein 1-R1; r issued far beyond middle of pterostigma and 2.5 × 3-SR; 2-SR nearly straight and distally slightly converging to posterior margin of pterostigma (Fig. 253 ); SR1 straight; 2-SR+M absent, m-cu interstitial; parastigma medium-sized to rather large; first discal cell of fore wing higher than first subdiscal cell; 1-CU1 0.4 × as long as vein 2-CU1; r:3-SR:SR1 = 5:2:31; 2-SR:3-SR:r-m = 15:2:6; r-m vertical; 2-M slightly curved (Fig. 253 ). Hind wing: M+CU:1-M:1r-m = 23:16:9. Legs. Hind femur matt, 4.0 × as long as wide and widened submedially; middle tibia with ivory blister; inner spur of middle tibia 0.4 × its basitarsus; hind coxa largely coriaceous and rather matt; hind tibia rather wide medially (Figs 250 , 257 ).

Metasoma (Figs 255 , 256 ). Elliptical in dorsal view, twice as long as wide and 1.3 × as long as mesosoma; first and second tergites densely and finely rugulose; second metasomal suture narrow and first suture much wider; third tergite 1.6 × longer than second tergite and laterally curved, in lateral view rather flat (Fig. 256 ), largely coriaceous-granulate and with satin sheen (Fig. 255 ), lateral lamella narrow, not protruding latero-apically and medio-apically truncate and medium-sized; ovipositor sheath narrow (Fig. 256 ), its visible part 0.2 × as long as fore wing and 0.3 × metasomal carapace and only its apex with few rather long setae; hypopygium apically with robust triangle (Fig. 256 ), without apical spine and sparsely setose.

Colour. Head (except clypeus) scapus, apex of antenna and ovipositor sheath brown; clypeus, propleuron, tegulum and remainder of antenna brownish yellow; humeral plate, third tergite, apex of second tergite, posterior half of metasoma ventrally, pterostigma (but basally pale yellowish), most veins, apical half of tibiae, middle and hind tibiae subbasally more or less dark brown; palpi, mandible (except dark brown teeth) and legs pale yellowish, but tibiae submedially, first and second tergites and basal half of metasoma ventrally ivory; wing membrane basally and marginal cell hyaline, remainder of apical half of fore wing slightly brownish; parastigma, veins 1-M and m-cu of fore wing pale yellow.

Male.

Similar to female with hind femur similar or inflated (Fig. 252 ) and antennal segments slenderer (Fig. 251 ).

Variations.

Length of fore wing of ♀ (1.3-)1.6-2.5 mm, of ♂ 1.4-2.0 mm; clypeus brown or brownish yellow; first-third tergites distinctly sculptured (typical) to (rarely) nearly smooth and shiny; third metasomal tergite 1.5-1.6 × longer than second tergite, dark brown or brown; apical 0.3-0.5 of antenna dark brown; scapus and head sometimes more or less brownish yellow; vein 3-SR 1.1-2.7 × as long as vein r; hind femur largely and apex of hind tibia sometimes dark brown.

Biology.

Unknown.

Distribution.

United Arabian Emirates, Yemen.

Etymology.

Named after short inner tooth of the mandible (mikros is Greek for small and odontos is Latin for tooth).

Figures

Figures 250 - 252. Phanerotoma microdonta van Achterberg, sp. nov., ♀, holotype (but 251, 252 of ♂, paratype) 250 habitus lateral 251 antenna 252 hind femur and tibia lateral.

Figures 253 - 263. Phanerotoma microdonta van Achterberg, sp. nov., ♀, holotype 253 fore wing 254 mesosoma dorsal 255 first-third metasomal tergites dorsal 256 metasoma lateral 257 hind leg lateral 258 mandible ventral 259 head dorsal 260 head anterior 261 head lateral 262 apical half of antenna lateral 263 antenna lateral.