Tricholabiodes aldryhimi Soliman

Soliman, Ahmed M., 2016, A new species of Tricholabiodes Radoszkowski, 1885 (Hymenoptera: Mutillidae) from Saudi Arabia, Zootaxa 4067 (1), pp. 95-100 : 96-98

Tricholabiodes aldryhimi Soliman , sp. nov. ( Figs 1–13 )

Material examined. Holotype ♂: SAUDI ARABIA, Rawdhat Farshet Sheaal (Al-Aflag) [22°24'56"N, 46°35'17"E], 602 m, LT No.3, 4.VIII.2015 (leg. Al Dhafer et al.) [ KSMA]. Paratypes: SAUDI ARABIA, 9♂ with the same label as holotype [ KSMA]; 1♂, Rawdhat Farshet Sheaal (Al-Aflag) [22°24'22", 46°35'35"E], 596 m, LT No.0, 4.VIII.2015 (leg. A.M. Soliman) [ KSMA]; 2♂: Rawdhat Farshet Sheaal (Al-Aflag) [22°24'34"N, 46°35'32"E], 601 m, LT No.2, 4.VIII.2015 (leg. Al Dhafer et al.) [ KSMA]; 16♂: Rawdhat Farshet Sheaal (Al- Aflag) [22°23'28"N, 46°34'46"E], 582 m, LT No.6, 4.VIII.2015 (leg. Al Dhafer et al.) [ KSMA]; 10♂: Rawdhat Farshet Sheaal (Al-Aflag) [22°23'28"N, 46°34'46"E], 582 m, LT No.6, 4.VIII.2015 (leg. Al Dhafer et al.) [ DJBC]; 1 ♂: Rawdhat Al-Sabalh (Al-Zulfi) [26°21'47"N, 44°58'48"E], 666 m, LT No. 0, 20.V.2015 (leg. A.M. Soliman) [ KSMA]; 1♂: Rawdhat Al-Sabalh (Al-Zulfi) [26°21'31"N, 44°59'06"E], 669 m, LT No.2, 20.V.2015 (leg. Abdel- Dayem et al.) [ DJBC]; 1♂: Rawdhat Al-Harmalyiah (Al-Quwayiyah) [24°20'21"N, 45° 08'38"E], 774 m, LT No.0, 25.VIII.2015 (leg. A.M. Soliman) [ KSMA].

Description. MALE. Body length 8.3−9.5 mm. Colour and pubescence. Head including antennal tubercles, mesosoma and first metasomal segment reddish brown ( Fig. 1 ); remainder of metasoma dark brown, last 2 segments lighter ( Fig. 10 ); antenna, palpi and legs pale yellow ( Fig 1, 2 ); mandible ferruginous yellow on basal two-thirds, black apically ( Fig. 2 ); tibial spurs ferruginous yellow. Wings hyaline, fore wing distal to cells slightly infuscated, infuscation invading third submarginal cell distally ( Fig. 3 ); veins yellowish-brown ( Fig. 3 ). Body and legs clothed with subappressed to appressed short and erect long pale setae ( Figs 1 , 6−8 ); felt line on T2 whitish ( Fig. 8 ).

Head. In dorsal view slightly wider than pronotum, convergent behind eyes, with straight posterior margin ( Fig. 1 ); face and vertex polished and puncticulate ( Fig. 2 ); MOD about 1.35 × F1 diameter and 1.6 × distance between mid ocellus and posterior one; IOD 1.3 × OOD; clypeus gently convex on disc, smooth, with median longitudinal carina extending on its basal fourth and free margin entirely convex (without protuberances); scrobal carina weak, provided with distinct tubercle; mandible tridentate apically, with dorsal rim carinate and without an enlarged vertical flange ( Fig. 2 ), subbasal ventral tooth about 0.8 × as long as minimum distance between emargination and upper mandibular margin; malar space about 0.35 × F1 diameter; scape with longitudinal carina on anterior surface; F1 1.6 × as long as wide and 0.75 × as long as F2; F2 as long as F3.

Mesosoma. Pronotum and mesopleuron punctate-reticulate; mesoscutum puncticulate, with complete notauli slightly divergent anteriorly and faint parapsidal lines; parascutal carina well developed, ending in a tooth; scutellum densely punctate on disc, punctures smaller than those on pronotum; propodeum gently sloping posteriorly, laterally and dorsally foveate-reticulate; propleuron shallowly punctate; metapleuron smooth; metasternal process bidentate on front of hind coxae. Fore wing with second submarginal cell as long as distance between origin of Rs on vein Sc and base of stigma and about 0.6 × as long as marginal cell and first submarginal cell ( Fig. 3 ). Mid femur with maximal width in the middle, evenly convex on both inner and outer surfaces; mid tibia oval in cross-section; mid basitarsus gradually curved in lateral view ( Fig. 4 ); ventral surface of hind femur without clumping of macrosetae, macrosetae shorter than shorter tibial spur; hind coxa convex on ventral surface, without longitudinal carina on mesal margin or setal tuft on posteromesal margin ( Fig. 5 ).

Metasoma. First segment petiolate ( Fig. 1 ); T1 punctate-reticulate, length 1.6 × its maximal width ( Fig. 1 ); S1 coarse, with weak interrupted longitudinal carina on anterior three-fourths of its length; T2 with long lateral felt line ( Figs 8, 9 ); S2 without any traces of felt line ( Figs 8, 9 ), evenly convex, not flattened on the disc ( Figs 7, 8 ); T2−T6 punctulate, punctures about 3−4 diameters apart; S3 posteromesally with a bifurcal sessile process ( Figs 7, 8, 9 ); T7 foveate basally and microgranulate on apical greater part, apical border evenly rounded ( Fig. 10 ).

Genitalia. 1.8 × as long as wide ( Fig. 11 ); paramere tapered apically, with long and dense setae on inner side ( Figs 11, 12 ), inner margin suddenly sinuate apically; base of paramere subtriangular in lateral view ( Fig. 13 ); volsella lobe-like ( Fig. 11 ); digitus cylindrical ( Fig. 11 ), longer than cuspis; penial valve with inner margin broadly concave, provided with short setae on its tip ( Fig. 12 ).

FEMALE. Unknown.

Distribution. Saudi Arabia (Najd region).

Remarks. The male of T. aldryhimi sp. nov. resembles that of T. brothersi Lelej, 2010 in having a bifurcal process on S3 but it differs from it by the following: head, mesosoma and metasomal first segment reddish brown, remainder of metasoma dark brown, last 2 segments slightly lighter (body straw-coloured in T. brothersi ); fore wing with second submarginal cell medium sized and pentagonal (very small and quadrangular in T. brothersi ); bifurcal process on S3 sessile and not extending beyond S3 (bifurcal process on S3 petiolate and slightly extending beyond S 3 in T. brothersi , Fig. 14 ); inner margin of genital paramere suddenly sinuate apically (straight throughout in T. brothersi , Fig. 15 ); base of paramere subtriangular in lateral view (cylindrical in T. brothersi , Fig. 16 ); inner margin of penial valve broadly concave throughout (strongly concave on apical half in T. brothersi , Fig. 15 ).

Etymology. This species is dedicated to Prof. Yousif N. Aldryhim (Plant Protection Department, College of Food and Agriculture Sciences, King Saud University).

Figures

FIGURES 1 − 4. Tricholabiodes aldryhimi sp. nov., holotype (♂): 1. Habitus, dorsal view; 2. Head, frontal view; 3. Fore wing; 4. Mid right-leg and hind right-femur.

FIGURES 5 − 10. Tricholabiodes aldryhimi sp. nov., holotype (♂): 5. Mid and hind coxae, ventral view; 6. T 2 − T 6; 7. S 2 − S 8; 8. Metasomal segments 1 − 7, lateral view; 9. S 2 − S 4; 10. T 6 − T 7.

FIGURES 11 − 16. 11 − 13. Tricholabiodes aldryhimi sp. nov., paratype (♂); 14 − 16. T. brothersi Lelej (modified from Lelej & van Harten, 2010). 11 − 13. Genitalia, ventral, dorsal & lateral view respectively; 14, S 3 − S 4; 15, 16, Genitalia, dorsal & lateral view respectively.