Sphex gaullei Berland, 1927

Dörfel, Thorleif H. & Ohl, Michael, 2022, The wasp genus Sphex in Sub-Saharan Africa (Hymenoptera: Sphecidae), European Journal of Taxonomy 796 (1), pp. 1-170 : 127-129

publication ID

https://doi.org/10.5852/ejt.2022.796.1665

publication LSID

lsid:zoobank.org:pub:76C5C9C4-C6C1-4EDC-8FF8-9828A6EF2040

DOI

https://doi.org/10.5281/zenodo.6535898

persistent identifier

https://treatment.plazi.org/id/03C20928-FFEF-FF23-425F-13673DA70FD1

treatment provided by

Felipe

scientific name

Sphex gaullei Berland, 1927
status

 

Sphex gaullei Berland, 1927

Figs 6 View Figs 1–6. 1–3 , 31–32 View Figs 25–32. 25–26 , 104–105 View Figs 100–105. 100–101 , 112 View Figs 106–112. 106–107 (yellow)

Sphex gaullei Berland, 1927: 151 , ♀, ♂.

Sphex rufiscutis laevigatus Arnold, 1951: 145 , ♀. Junior primary homonym of Sphex laevigatus Rossi, 1794 . Syn. nov.

Differential diagnosis

This species is very similar to S. jansei and has frequently been mistaken for it in the past, as until now there were no identification keys that featured both species. The morphological differences between the two are subtle, but undeniable.

Females of S. jansei ( Fig. 106 View Figs 106–112. 106–107 ) and S. gaullei ( Fig. 104 View Figs 100–105. 100–101 ) are characterized through their ferruginous clypeus with golden setae, their convex, sparsely pubescent, ferruginous scutellum, and their almost completely black scutum, petiole and metasoma. Sphex schmideggeri sp. nov. ( Fig. 108 View Figs 106–112. 106–107 ) is similar, but has the scutum, petiole and metasomal tergum I predominantly ferruginous. The main characters that distinguish S. gaullei from S. jansei are the color of the erect propodeal setae, which is brownish-gray in S. gaullei and silvery-white in S. jansei , and the extent of the reddish coloration on the body. Sphex jansei has the pronotal lobe mostly black, with the posterior margin ferruginous at most, and some specimens also have a black collar. In S. gaullei , the collar and pronotal lobe are predominantly ferruginous.

Regarding males, S. jansei ( Fig. 107 View Figs 106–112. 106–107 ) and S. gaullei ( Fig. 105 View Figs 100–105. 100–101 ) both have approximately the lower half of the clypeus ferruginous and the remainder black, with the erect propodeal setae being silvery. What separates them is the fact that S. gaullei has the distal half of the fore- and hindwing notably infuscate ( Fig. 32 View Figs 25–32. 25–26 ). In contrast, the wings of S. jansei are hyaline in the cellular area and only the apical margin is fuscous ( Fig. 30 View Figs 25–32. 25–26 ). Both species have the erect facial setae golden, whereas male S. schmideggeri sp. nov. have them silvery.

Material examined

Lectotype (designated here) CENTRAL AFRICAN REPUBLIC – Nana-Grébizi • ♀; Fort-Crampel [now Kaga-Bandoro] ; MNHN.

Paralectotypes CENTRAL AFRICAN REPUBLIC – Nana-Grébizi • 1 ♂; same collection data as for holotype; MNHN 1 ♀; same collection data as for holotype; BMNH .

Other material

BURKINA FASO – Cascades Region • 1 ♀; Tingréla, Banfora ; [10°38ʹ31.7ʺ N, 4°49ʹ50.9ʺ W]; 20 Dec. 1967; J. Hamon leg.; MNHN GoogleMaps . – Hauts-Bassins Region • 1 ♂; Bobo-Dioulasso ; [11°11ʹ N, 4°17ʹ W]; 10 Nov. 1967; J. Hamon leg.; MNHN GoogleMaps 1 ♂; Koro ; [11°09ʹ N, 4°12ʹ W]; 10 Dec. 1967; J. Hamon leg.; MNHN GoogleMaps 1 ♂; same collection data as for preceding but 13 Dec. 1967; MNHN. GoogleMaps

DEMOCRATIC REPUBLIC OF THE CONGO – Nord-Ubangi • 2 ♀♀; Yakoma ; [4°05ʹ53ʺ N, 22°26ʹ45ʺ E]; 12 Feb. 1932; H.J. Brédo leg.; MRAC GoogleMaps 6 ♀♀; same collection data as for preceding but 17 Feb. 1932; MRAC GoogleMaps .

ETHIOPIA • 1♂, 1 ♀; 1882; Raffray leg.; MNHN .

GHANA – Savannah Region • 1 ♀; Yapi [Yapei]; [9°09ʹ08ʺ N, 1°08ʹ52ʺ W]; J.J. Simpson leg.; BMNH GoogleMaps .

MALI – Bamako Region • 1 ♀; Barainba , NE of Bamako; [12°39ʹ N, 8°00ʹ W]; Aug. 1991; G. Popov leg.; BMNH GoogleMaps . – Mopti Region • 1 ♀, holotype of Sphex rufiscutis laevigatus Arnold, 1951 ; near Sofara; [14°01ʹ N, 4°14ʹ W]; 3 Sep. 1944; K.M. Guichard leg.; BMNH GoogleMaps .

NIGERIA • 1 ♀; Michika-Bama; 6 Dec. 1979; G. Popov leg.; BMNH. – Oyo State 1 ♀; Fashola near Oyo; [7°54ʹ N, 3°47ʹ E]; 15 Nov. 1975; J.T. Medler leg.; USNM GoogleMaps .

REPUBLIC OF CÔTE D’IVOIRE – Vallée du Bandama District • 1 ♂; Bouaké ; [7°41ʹ N, 5°01ʹ W]; 1977; P.M. Elsen leg.; MRAC GoogleMaps .

RWANDA – Western Province • 1 ♀; Ishwa, Lake Albert ; [2°23ʹ04ʺ S, 28°55ʹ58ʺ E]; Sep. 1935; H.J. Brédo leg.; MRAC GoogleMaps .

SENEGAL • 1 ♂; “ Between Tambacounda and Kaffrine ”; 27–30 Dec. 1967; M. Coruet leg.; MNHN .

SUDAN – South Kordofan • 1 ♀; Talodi, Nouzi, Nuba Mountains ; [10°37ʹ56ʺ N, 30°22ʹ46ʺ E]; Nov. 1921; F. Moysey leg.; BMNH GoogleMaps .

Description

Female

SIZE. 19.7–23.1 mm.

COLOR. Black except for the following, which are ferruginous: basal half of mandible, labrum, clypeus, scape, pedicel, flagellomeres I–V, collar, tegula, pronotal lobe, prepectus, scutellum, metanotum, forecoxa and legs from trochanter onward, except apical half of claw. Basal wing half often with yellow tinge, apical half fuscous with violet iridescence.

VESTITURE. Appressed setae on clypeus, paraocular area and scutum golden, on propodeal enclosure silvery-golden. Erect setae on clypeus and paraocular area ferruginous-golden, on collar and scutum ferruginous, on propodeal enclosure brownish-gray. Erect propodeal setae oriented anteriorly. Lower center of clypeus glabrous. Scutellum densely and finely pubescent.

STRUCTURE. Free clypeal margin slightly notched medially, stepped above. Clypeus without indentation or carina. Scutellum convex. Metanotum raised, slightly bituberculate. 2 nd recurrent vein joins markedly proximal from interstitium between submarginal cells II and III. Propodeal enclosure with eight to twelve sharply distinct transversal ridges. Foretarsomere I 1.7–1.8× length of antepenultimate spine. Petiole length 2.0–2.4 × its medial width.

Male

SIZE. 17.0– 21.2 mm.

COLOR. Black except for the following, which are ferruginous: basal half of mandible, labrum, scape, pedicel ventrally, proximal third of flagellomere I ventrally, lower half of clypeus, legs from femur or

tibia onward up to tarsomere II, collar, tegula and dorsal part of scutellum. Basal wing half hyaline, apical half fuscous with violet iridescence.

VESTITURE. Appressed setae on clypeus, paraocular area, collar, scutum and propodeal enclosure silvery. Erect setae on clypeus and paraocular area golden, on collar ferruginous-golden, on scutum and propodeal enclosure silvery. Erect propodeal setae oriented anteriorly. Lower part of clypeus glabrous. Scutellum densely and finely pubescent.

STRUCTURE. Free clypeal margin simple. Scutellum convex. Metanotum raised, slightly bituberculate. 2 nd recurrent vein joins markedly proximal from interstitium between submarginal cells II and III. Propodeal enclosure with indistinct ridges. Posterior margin of metasomal tergum VII convex. Posterior margin of metasomal sternum VII simple, of metasomal sternum VIII concavely emarginate. Penis valvae without conspicuous modifications. Petiole length 2.2–2.4 × its medial width. Flagellomeres III + IV with narrow placoids covering their entire length.

Variation

Unknown.

Distribution

Western to central Africa.

MNHN

France, Paris, Museum National d'Histoire Naturelle

BMNH

United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)]

USNM

USA, Washington D.C., National Museum of Natural History, [formerly, United States National Museum]

MRAC

Musée Royal de l’Afrique Centrale

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Vespidae

Genus

Sphex

Loc

Sphex gaullei Berland, 1927

Dörfel, Thorleif H. & Ohl, Michael 2022
2022
Loc

Sphex rufiscutis laevigatus

Arnold G. 1951: 145
1951
Loc

Sphex gaullei

Berland L. 1927: 151
1927