A revision of bupresticida species group of Cerceris Latreille, 1802 (Hymenoptera: Crabronidae: Philanthinae) of the Western Palearctic region, with the description of Cerceris ammonia, a new species from Egypt Author Malash, Alyaa A. 0000-0001-6053-0693 Entomology Department, Faculty of Science, Cairo University, PO Box 12613, Giza, Egypt. alyaa_adel91@cu.edu.eg Author Edmardash, Yusuf A. 0000-0002-3365-0822 Entomology Department, Faculty of Science, Cairo University, PO Box 12613, Giza, Egypt. edmardash@cu.edu.eg Author Gadallah, Neveen S. Entomology Department, Faculty of Science, Cairo University, PO Box 12613, Giza, Egypt. text Zootaxa 2024 2024-05-09 5448 1 1 28 http://dx.doi.org/10.11646/zootaxa.5360.3.8 journal article 10.11646/zootaxa.5448.1.1 1175-5326 11231152 E5657AAC-A82F-44F7-A57B-CE3ECA8F963D Cerceris hathor Pulawski, 1983 Figs 9 (A, B), 10(A-C), 11(A-E), 12(A-D), 13(A-C) Cerceris hathor Pulawski, 1983: 242 , ♀ , ♂ . Holotype ♀ , Egypt : Giza (near Cairo ). Body Length: ♀ : 13 mm ; ♂ : 8.0- 11 mm . Brief description. Female ( Figs 9A, B , 10 A-C, 12A-D, 13A-C)): Body black, with yellow and reddish brown to ferruginous. Clypeus with minute, emarginate lamella just above free margin, free margin with four distinct teeth ( Figs 10A , 12B ); propodeal enclosure smooth, with superficial punctures laterally, separated by alutaceous interspaces ( Fig. 13A ); hindcoxa with sharp keel along its inner side; pygidial plate relatively large, broad at base, narrowed towards apex, narrowly rounded apically, superficially rugose, with dense upwardly curved pale setae laterally ( Fig. 10C ). Male ( Fig. 11 A-E): With reduced yellow and red areas ( Fig. 11A ); clypeus bicolored, with straight apical margin ( Fig. 11B ); scutum moderately punctate ( Fig. 11C ), scutellum smooth ( Fig. 11C ); clypeal brush extending along its lateral lobes ( Fig. 11B ); T 6 without lateral spine ( Fig. 11E ), S 6 with lateral, finger-like process ( Fig. 11E ). Material examined: Egypt : 1♀ , Al Burg , 16-20. iv.1956 , Sh. M. collector ( EFC ) ; 11♂ , Giza , 23.xii.1960 , DAW. collector ( EFC ) ; 4♂ , Giza , 23.xii.1960 , ABDL . collector ( EFC ); a photograph from CAS : 1♀ , Giza near Cairo , 20.iv.1958 , W. Pulawski collector, det. W.J. Pulawski , 1959 ( holotype ) . Distribution: AF: Chad , Yemen ; PA: Algeria , Iran , Israel / Palestine , Jordan , Morocco , Oman , Russia , Saudi Arabia , Syria , Tunisia , Turkey , United Arab Emirates ( Pulawski 2024 ). Comments. This species was previously misidentified as C. eugenia Schletterer, 1887 , it was corrected to C. hathor by Pulawski (1983) . Our female specimens differ from that of Pulawski’s holotype in having the pale body colour yellow ( Figs 9A, B , 10A ) (ivory white in holotype female, Fig. 12A, B ). Characters of female and male specimens agree with Schmidt’s key (2000: 89, 90, couplets 4, 10, respectively). Cerceris hathor closely resembles C. tricolorata , from which it differs by the following: scutum sparsely punctate ( Fig. 13A ) (scutum densely punctate in C. tricolorata ( Fig. 18B )); male and female propodeal enclosure smooth and shiny ( Fig. 13A )) (male propodeal enclosure coarsely longitudinally ridged in C. tricolorata ( Fig. 21B ); gastral T 1 short and globular ( Figs 9A , 12A ) (distinctly long in C. tricolorata ( Figs 18C , 20A )); T 2 of the male normal ( Fig. 11A ) (male T 2 long and slightly constricted at base in C. tricolorata ( Fig. 20A )); male S 6 only with posterolateral spine or process ( Fig. 11E ) (both T 6 and S 6 of the male with posterolateral process in C. tricolorata ( Fig. 21D )); T 4 apically and T 5 wholly or partly whitish ( Fig. 12A ) (T 4 entirely reddish brown in C. tricolorata ( Fig. 18B )). The male also agrees with Guichard’s key (1993: 165, couplet 27 as C. eugenia ) in which S 6 only has lateral spine ( Fig. 11E ).