Macroocula zulfiensis Soliman & Gadallah, 2016

Soliman, Ahmed Mostafa, Gadallah, Neveen Samy & Dhafer, Hathal Mohammed Al, 2016, Three new species of the genus Macroocula Panfilov, 1954 (Hymenoptera: Bradynobaenidae: Apterogyninae) from Saudi Arabia, Turkish Journal of Zoology 40 (3), pp. 352-362 : 355-357

Macroocula zulfiensis Soliman & Gadallah sp. nov. ( Figures 13–20 )

Material examined. Holotype ♂: Saudi Arabia, Rawdhat Al-Sabalh (Al-Zulfi) [26°21′31″N, 44°59′06″E], elev. 669 m, 20.V.2015, light trap no. 2, leg. Abdel-Dayem et al., [ KSMA] . Paratypes 2 ♂♂: Saudi Arabia, Rawdhat Al-Sabalh (Al-Zulfi) [26°22′25″N, 44°58′14″E], elev. 670 m, 20. V .2015, light trap no. 5, leg. Abdel-Dayem et al., [ KSMA] ; 1 ♂: Saudi Arabia, Rawdhat Al-Sabalh (Al-Zulfi) [26°21′47″N, 44°58′48″E], elev. 666 m, 20. V .2015, light trap no. 0, leg. Abdel-Dayem et al., [ MRSN] ; 1 ♂: Saudi Arabia, Rawdhat Khorim (Riyadh)

SOLIMAN et al. / Turk J Zool

[ 25°25′57″N, 47°13′52″E], elev. 572 m, 3.VIII.2012, light trap B, leg. Fadl, [ KSMA]; 1 ♂ : Saudi Arabia, Rawdhat Khorim (Riyadh) [25°25′57″N, 47°13′52″E], elev. 572 m, 29.IV.2012, light trap B, leg. Al Dhafer et al., [ CUE] .

Description: MALE (holotype). Body length 12 mm. Color ( Figures 13-15 ). Head including antennal tubercle, mesosoma including tegula, mid and hind coxae, metasomal stalk, and metasomal last segment ferruginous yellow; antenna and basal third of mandible pale yellow;

apical 2/3 of mandible and metasomal terminal hook reddish brown; legs and palpi pale yellow to whitish; metasomal segments 1–6 brown, first segment remarkably lighter; fore tibial spur pale yellow, mid and hind ones waxy white; eye black, ocelli glassy; wings hyaline, forewing with veins and stigma white. Pubescence. Head including scape of antenna, basal third of mandible and mesosoma including legs with moderately long erect pale setae ( Figure 14-16 ); metasoma densely clothed with long erect pale setae ( Figure 18 and 19 ); S2–S6 with apical fringe of long and sparse pale setae; felt line on T2 with dense pale setae ( Figure 19 ); S6 laterally with stout reddish bristles.

Head. In dorsal view slightly wider than pronotum; face and vertex smooth except lower half of face and the area between lateral ocellus and eye on vertex are punctate-subreticulate ( Figure 14 ), vertex not swollen posterolaterally; antennal scrobe punctulate; MOD 1.3 × F1 diameter; OOD 0.6 × IOD ( Figure 14 ); malar space short, 0.7 × F1 diameter; distance between antennal tubercles 0.5 times as long as tubercle length; clypeus convex on disc, densely punctate, with free margin gently convex; gena smooth, genal orbit finely punctate. Mandible slender, pointed apically, edentate. Scape of antenna slightly shorter than wide; F1 6 times as long as wide, slightly longer than F2 and about 1.3 times as long as F3.

Mesosoma. Pronotum foveate-reticulate dorsolaterally, with lateral face foveate-reticulate, and ridged between foveae; mesoscutum densely punctate, punctures 0.5 diameter apart ( Figure 15 ), with smooth median longitudinal stripe extending along its whole length; notauli complete, deep and widely divergent anteriorly; scutellum punctate-subreticulate, smooth anteromedially; tegula smooth; propodeum foveate-reticulate on dorsal face, posterior face somewhat gently declivous and smooth. Mesopleuron foveate-reticulate dorsally and sparsely punctate ventrally; metapleuron smooth. Metasternum strongly bidentate in front of hind coxae, space between denticles U-shaped. Forewing with brachial cell as long as wide and 0.8 times shorter than anterior vein of cubital cell; hind wings with 6–7 hamuli. Mid trochanter ventrally with well-developed, prominent protuberance, hind trochanter ventrally with distinct protuberance but much smaller than that on mid trochanter ( Figure 16 ).

Metasoma. T1 subconical, 1.3 times as long as maximal width ( Figure 17 ); T1 and T2 deeply punctate-reticulate ( Figures 17 and 18 ); T2 pear-shaped, scarcely longer than wide ( Figure 18 ); T3 ellipsoid punctate, punctures 1–2 diameters apart on disc ( Figure 18 ), become closer and slightly larger laterally; T4–T7 punctulate, punctures 1 diameter apart. S1 transversally ridged, with punctures between ridges; S2 deeply punctate-subreticulate ( Figure 19 ); S3 puncticulate throughout, punctures 2–3 diameters apart ( Figure 19 ), with double row of punctures along posterior margin; S4–S6 smooth basally, punctulate along apical rim.

Genitalia ( Figure 20 ). Gradually widened towards apex, length 1.6 times its maximal width. Parameres narrow, rounded apically, with tuft of irregularly long setae at apex, densely setose along its inner side as well as in the area surrounding volsella, with fewer scattered ones at outer side. Volsella with lobe-like cuspis, broad basally and narrowed towards apex, densely setose along its whole surface; digitus long and slender along its whole length, bare except for some sensory pits, slightly longer than cuspis and about 2/3 length of aedeagus, which is in turn as long as parameres.

Female unknown.

Distribution. Saudi Arabia.

Remarks. The new species M. zulfiensis resembles the Arabian species M. ohli Pagliano, 2002 and M. silvioi Pagliano, 2002 in having a ventral protuberance on the hind trochanter, but it differs from them remarkably in the following: the protuberance on the hind trochanter is much smaller than that on the mid trochanter (protuberances on mid and hind trochanter are similar in size in M. ohli and M. silvioi ); head and mesosoma ferruginous yellow, metasomal segments 2–6 brown (body uniformly pale yellow in M. ohli and bright yellow to almost white, with scattered black spots on mesoscutum and very slightly brownish tint on disc of T2 and T3, in M. silvioi ). Moreover, the new species resembles the Egyptian M. brothersi Gadallah and Soliman, 2015 but strongly differs from it in the following: aedeagus as long as parameres, outer margin of parameres moderately concave (aedeagus about 0.5 times as long as parameres in M. brothersi , outer margin of parameres strongly concave, Figure 21 ); legs and forewing veins whitish (legs ferruginous yellow and forewing veins light brown to yellow in M. brothersi ); first metasomal segment brownish (ferruginous yellow in M. brothersi ); brachial cell as long as wide and 0.8 times as long as anterior vein of cubital cell (2.8 times as long as wide and 1.3 times as long as anterior vein of cubital cell in M. brothersi ).

Etymology. The name of this species refers to the type locality, Al-Zulfi.

Figures

Figures 13–17. Macroocula zulfiensis sp. nov., holotype, (♂): 13. habitus, dorsal view; 14. head, frontal view; 15. mesoscutum; 16. mid and hind coxae and trochanters; 17. T1.

Figures 18–21. 18–20. Macroocula zulfiensis sp. nov., holotype, (♂); 21. Macroocula brothersi Gadallah and Soliman. 18. T2 and T3; 19. S2–S8; 20 and 21. male genitalia, ventral view.