Macroocula khorimensis 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 : 357-362

Macroocula khorimensis Soliman & Gadallah sp. nov. ( Figures 22–31 )

Material examined. Holotype ♂: Saudi Arabia, Rawdhat Khorim (Riyadh) [25°25′57″N, 47°13′52″E], elev. 572 m, 10.VI.2012, light trap B, leg. Fadl, [ KSMA] . Paratypes 1♂: Saudi Arabia, Al-Khararh ( Muzahimiyah ) [24°24′21″N, 46°14′40″E], 17. V .2011, light trap N, leg. Abdel-Dayem et al., [ KSMA] ; 1♂: Saudi Arabia, Al-Khararh ( Muzahimiyah ) [24°24′21″N, 46°14′40″E], 17.VIII.2011, light trap N, leg. Abdel-Dayem & Al-Dhafer, [ KSMA] . 1♂: Saudi Arabia, Rawdhat Khorim (Riyadh) [25°25′57″N, 47°13′52″E], elev. 572 m, 28.VIII.2012, light trap B, leg. Al Dhafer et al., [ CUE] .

SOLIMAN et al. / Turk J Zool

Description: MALE (holotype). Body length 14 mm. Color ( Figures 22, 23 , and 26). Head including antennal tubercle and basal third of mandible, mesosoma including tegula, metasomal anterior stalk, and metasomal last segment ferruginous yellow; antenna palpi and legs pale yellow, legs lighter; apical 2/3 of mandible and metasomal terminal hook reddish brown; remaining metasomal segments brown, first segment distinctly lighter; fore tibial spur pale yellow, mid and hind ones waxy white; eye black, ocelli glassy; wings hyaline, forewing with veins and stigma extremely pale yellow. Pubescence. Body including legs and scape of antenna clothed with long erect pale setae denser on clypeus and last 2–3 tergites than elsewhere ( Figure 22 and 23 ); S2–S6 with apical fringe of long and sparse pale setae; felt line on T2 with pale setae; S6 laterally with stout reddish bristles.

Head. In dorsal view slightly wider than pronotum; face and vertex finely punctate-reticulate ( Figure 23 ), face with smooth small area in front of mid ocellus, vertex sparsely punctate beyond lateral ocelli and swollen posterolaterally; antennal scrobe punctulate; MOD 1.25 × F1 diameter; OOD 0.4 × IOD ( Figure 23 ); malar space short, about 0.6 × F1 diameter; distance between antennal tubercles 0.6 times as long as tubercle length; clypeus convex on disc, punctulate, with free margin gently convex; gena puncticulate. Mandible slender, pointed apically and edentate. Scape of antenna slightly shorter than wide; F1 5 times as long as wide, slightly longer than F2 and about 1.2 times longer than F3.

Mesosoma. Pronotum foveate-reticulate dorsolaterally, with lateral face foveate-reticulate, and ridge4 between foveae; mesoscutum punctate-subreticulate to reticulate ( Figure 24 ), punctures less than 0.5 diameter apart, with smooth median longitudinal stripe on anterior half; notauli complete, deep and widely divergent anteriorly; scutellum punctate-reticulate, with longitudinal median smooth stripe; tegula smooth; propodeum foveate-reticulate on dorsal and posterior faces. Mesopleuron foveate-reticulate dorsally and punctate-subreticulate ventrally; metapleuron smooth below spiracle. Metasternum bidentate in front of hind coxae, space between denticles V-shaped. Fore wing with brachial cell as long as wide and 0.9 times as long as anterior vein of cubital cell; hind wings with 7 hamuli. Mid trochanter ventrally with well-developed, prominent protuberance, hind trochanter ventrally with distinct protuberance but a little smaller than that on mid trochanter ( Figure 25 ).

Metasoma. T1 subconical, 1.1 times as long as maximal width ( Figure 26 ); T1 and T2 deeply punctate-reticulate ( Figure 26 ); T2 pear-shaped, 1.1 times wider than long ( Figure 26 ); T3 ellipsoid densely punctate, punctures 0.5– 1.0 diameter apart on disc ( Figure 27 ), become reticulate laterally; T4−T7 punctulate; S1 transversally ridged, with deep punctures between ridges; S2 shallowly punctate-reticulate ( Figure 28 ); S3 densely punctate throughout, punctures 0.5–1.0 diameter apart ( Figure 29 ), with double row of punctures along posterior margin; S4–S6 finely punctate-subreticulate.

Genitalia ( Figures 30 and 31 ). Somewhat resembles that of M. zulfiensis but differs in the following: length about 1.8 times its maximal width; digitus distinctly longer than cuspis. Aedeagus distinctly shorter than parameres.

Remarks. M. khorimensis resembles M. zulfiensis in having a ventral protuberance on the hind trochanter, but differs from it in the following: aedeagus of genitalia remarkably shorter than parameres ( Figure 30 ) (aedeagus as long as parameres in M. zulfiensis ); face punctate-reticulate (face smooth on upper half and sparsely punctate on lower part in M. zulfiensis ); T1 1.1 times as long as wide and T2 slightly wider than long (T1 1.3 times longer than wide, T2 slightly longer than wide in M. zulfiensis ); punctures tend to be reticulate to subreticulate on different parts of the body (in M. zulfiensis punctures are distinctly dispersed).

Etymology. The name of this species refers to the type locality, Rawdhat Khorim.

Key to the Macroocula species with a ventral protuberance on the hind trochanter

1. Body pale yellow; hind trochanter with protuberance equal in size to that on mid trochanter ......................... 2 - At least second and third metasomal segments brown or black; hind trochanter with protuberance smaller than that on mid trochanter ........................................... 3 2. Body uniformly pale yellow, T2 and T3 with the same color as mesosoma; mesoscutum punctate-reticulate; metapleuron ridged; T4 and T5 densely punctate apically .................................................... M. ohli Pagliano - Body almost whitish, T2 and T3 with dark markings on disc and darker than mesosoma; mesoscutum subreticulate-punctate, punctures about 0.5 diameter apart; metapleuron smooth; T4 and T5 less densely punctuate, about 1 diameter apart apically ...................... .............................................................. M. silvioi Pagliano 3. First metasomal segment ferruginous yellow; legs ferruginous yellow; forewing veins light brown to yellow; brachial cell 2.8 times as long as wide and 1.3 times as long as anterior vein of cubital cell; parameres of genitalia long and strongly concave at outer margin, clothed with long and dense setae basally, provided with strongly prominent process subbasolaterally ( Figure 21 ); aedeagus greatly shorter than parameres (about 0.5 times as long as parameres ( Figure 21 ) .......... ..................................... M. brothersi Gadallah & Soliman - First metasomal segment brown; legs and forewing veins pale yellow to whitish; brachial cell as long as wide and 0.8 times as long as anterior vein of cubital cell; parameres of genitalia short and moderately concave at outer margin, clothed with short and scattered setae basally, provided with less prominent process subbasolaterally ( Figures 20 , 30 , and 31); aedeagus at most slightly shorter than parameres ( Figures 20 and 30 ) ..................................................................................... 4 4. Face punctate-reticulate ( Figure 23 ); T1 1.1 times as long as wide; T2 slightly wider than long ( Figure 26 ); propodeal posterior face foveate; punctures subreticulate to reticulate on different parts of the body; aedeagus shorter than parameres ( Figure 30 ) ...... ...................................................... M. khorimensis sp. nov.

- Face smooth on upper half, punctulate on lower half ( Figure 14 ); T1 1.3 times as long as wide; T2 longer than wide ( Figure 18 ); propodeal posterior face smooth; punctures noticeably dispersed on different parts of the body; aedeagus as long as parameres ( Figure 20 ) .... ........................................................... M. zulfiensis sp. nov. Nomenclatural acts: This work and the nomenclatural acts it contains have been registered in ZooBank.

The ZooBank Life Science Identifier (LSID) for this

Figures

Figures 22–26. Macroocula khorimensis sp. nov., holotype, (♂): 22. habitus, dorsolateral view; 23. head, frontal view; 24. mesoscutum; 25. mid and hind coxae and trochanters; 26. T1 and T2.

Figures 27–31. Macroocula khorimensis sp. nov., holotype, (♂): 27. T3; 28. S2; 29. S3; 30 and 31. male genitalia, ventral and lateral view, respectively.

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.

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.