Cerceris hanangensis DOLLFUSS, 2023

Dollfuss, Hermann & M, Mt., 2023, New species of the genus Cerceris LATREILLE, 1802 from Sub-Saharan Africa Hymenoptera, Apoidea, Crabronidae Part I, Linzer biologische Beiträge 55 (1), pp. 307-349 : 316-321

publication ID	https://doi.org/ 10.5281/zenodo.10414968
persistent identifier	https://treatment.plazi.org/id/94671705-FFF9-6240-FF58-FE03FD41546D
treatment provided by	Felipe
scientific name	Cerceris hanangensis DOLLFUSS
status	sp. nov.

Treatment

Cerceris hanangensis DOLLFUSS nov.sp. ( Fig. 7 View Fig , 8 View Fig )

H o l o t y p e: ♀, Tanzania, Nangwa SE side Mt. Hanang, 6300 feet, 25.I.2070, leg. M.E. Irwin & E.S. Ross (CAS).

P a r a t y p e s: Tanzania, 2♁♁, same data as holotype ( CAS) ; 1♀, Tanganyika east side, Mt. Meru, 1700 m, 28.X.1957, leg. Ross & Lee ( CAS) .

E t y m o l o g y: Theholotypewascollected on Mt. Hanang in Tanzania.

R e c o g n i t i o n: Cerceris hanangensis is characterized by having no longitudinal carina on coxa III. The apical margin of the clypeus of the female has median a small slightly rised lamella and the lateral parts of the clypeus are distinctly emarginate ( Fig. 7a,b View Fig ), the mandible has a broad tooth internally, the scutum is micropunctate and shallowly longitudinally striate with punctures between the striae, the propodeal enclosure is irregularly obliquely striate with shallow lateral- and medio-longitudinal furrows. Additionally, clypeus and frons, tegula, legs partly and wings are ferruginous. The female of C. tsavoensis is similar to C. hanangensis but differs in having the median part of clypeus with a triangular carina near apical margin. The female of C. nugax differs from C. hanangensis by having a median area of clypeus with two small projections and a short longitudinal carina behind them, the mandible has an acute tooth internally, the scutum is dull and densely punctate and the propodeal enclosure is transversely striate. The female of C. anubis is similar to C. hanangensis but differs in having the median area of the clypeus with a slightly emarginate transverse carina and behind it two short sharply keeled tubercles, the mandibles has a double-tooth and the clypeus, the frons and basal half of mandibles are yellow.

The male of C. hanangensis is characterized by having the apical margin of clypeus black and tridentate ( Fig. 8a View Fig ), the mandibles are edentate internally, the flagellomeres VIII-XI have small tyloidea ( Fig. 8c View Fig ), the prosternum has no transverse carina, the propodeal enclosure is shallowly irregularly obliquely ridged and the lateral- and medo-longitudinal furrows are indistinctly developed. Additionally, the petiolus is slightly longer than wide, the tegulae and the wings are ferruginous and the genitalia are characteristically shaped ( Fig. 8f View Fig ). The male of C. rufiscutis is similar to C. hanagensis but differs in having the flagellomere X and XI with flat tyloidea, distinctly differently shaped genitalia and the body is predominantly ferruginous.

D e s c r i p t i o n: ♀, 11.5 mm. Sculpture: apical margin of clypeus median with small slightly rised lamella and lateral with small tooth; lateral sides of clypeus distinctly emarginate ( Fig. 8a View Fig ); mandible with broad tooth internally; interantennal carina not sharply keeled; prosternum without transverse carina; pronotal collar lateral rounded; mesopleuron with tiny tubercle or without; epimeron without crest; propodeal enclosure irregularly obliquely striate lateral- and medio-longitudinal carina shallow; petiolus as wide as long ( Fig. 7e View Fig ); sternum II without basal plate; flagellum ( Fig. 7c View Fig ); pygidial plate ( Fig. 7d View Fig ). Puncturation: clypeus densely micropunctate (dull); frons micropunctate and sparsely punctate; pronotal collar dull and irregularly punctate; scutum dull and longitudinally rugose-punctate; scutellum similar as scutum; metanotum impunctate; mesopleuron dull and reticulate-punctate; mesopleuron venter micropunctate; propodeal sides densely reticulate-punctate; terga I-IV dull and sparsely punctate; tergum V micropunctate and finely punctate; pygidial plate irregularly structured; tegulae impunctate; sterna shining and shallowly punctate. Pilosity: clypeus sides covered with appressed setae; gena covered with long erect setae; terga III-V more or less covered with appressed short setae which not obscure underlying sculpture; rest of body sparsely covered with erect setae. Coloration: black; following parts ferruginous: clypeus, frons, mandibles (except apex), interantennal carina, flagellum, gena, tegula, segment VI, legs nearly all, wings and sternumV; following parts yellow: pronotal collar in some specimens, metanotum, petiolus apico-lateral, terga II-IV apical and coxa III lateral.

♁, 10-12 mm. Sculpture: apical margin of clypeus more or less tridentate ( Fig. 8a View Fig ); mandible edentate internally; prosternum without transverse carina; mesopleuron without tubercle; epimeron without crest; flagellomere VIII-XI with small tyloidea ( Fig. 8c View Fig ); propodeal enclosure shallowly irregularly ridged, lateral furrows indistinctly develpoped, medio-longitudinal furrow more or less developed; petiolus as slong as wide or slightly longer ( Fig. 8e View Fig ); coxa III without longitudinal carina; sternum II without basal plate; sternum VI with rectangular lamella apico-lateral; pygidial plate ( Fig. 8d View Fig ); genitalia ( Fig. 8f View Fig ). Puncturation: clypeus and frons micropunctate; vertex densely punctate; prosternum dull and sparsely punctate; pronotal collar micropunctate and irregular punctate; scutum and scutellum rugose and punctate between rugae; metanotum impunctate; propodeal sides densely punctate; mesopleuron rugose-punctate; mesopleuron venter dull; terga densely punctate, toward last tergite more and more sparsely punctate; sterna shining and apico-lateral sparsely punctate. Pilosity: body with long erect setae, except on terga III-VI dorsal more appressed; clypeal brush broad. Coloration: black; following parts yellow: clypeus, frons, interantennal carina partly, pronotal collar lateral; metanotum, petiolus apico-lateral, terga II-IV small bands apically, sterna II-IV latero-apical; hindcoxa and hindtrochanter partly; following ferruginous: mandible (except apex), flagellum, wings, tergum and sternum VI partly, pygidial plate and legs partly.

D i s t r i b u t i o n: Tanzania (Mt. Hanang, Mt. Meru).

Cerceris mackinnona DOLLFUSS nov.sp. ( Figs 9 View Fig , 10 View Fig ) H o l o t y p e: ♀, Kenya-SE, S Mackinnon Road, 13.IV.2007, leg. M. Halada (OÖLM).

P a r a t y p e s: 8 ♁♁, same data as holotype ( JHC) ; Ethiopia, 2♀ ♀, 20 km SE Konsa , 05°15'N 37°32'E, 850 m, 11.-13. V.2015, leg. J. Halada ( JHC) GoogleMaps ; 1♀, 40 km W Konso, 05°19'N 37°04'E, 600 m, 14. V.2015, leg. M. Halada ( JHC). Kenya, 1♀, Voi (Tsavo), 13.-17.XII.1997, leg M. Snižek ( JHC) GoogleMaps ; 1♀, E Mwingi , 14. V.2007, leg. M. Halada ( JHC) ; 1♁, Coast Province, Taita Hill Discovery Centre , 3°42.3'S 38°46.6'E, 13.-14.X.2002, leg. Prentice ( CAS). Tanzania, 1♁, Tanga Region, 2 km NE Mkomazi, 4°37.8'S 38°5.5'E, 13.I.2003, leg. Prentice ( CAS) GoogleMaps .

E t y m o l o g y: The holotype was collected in Mackinnon Road ( Kenya).

R e c o g n i t i o n: Cerceris mackinnona is characterized by having the coxa III without a longitudinal carina, the mandibles are edentate internally and the epimeron is unusually swollen. The female of C. mackinnona is characterized in having the clypeus concave in lateral view ( Fig. 9b View Fig ), the apical margin of the clypeus is produced with four more or less developed teeth ( Fig. 9a View Fig ), the propodeal enclosure is obliquely irregularly rugose and the sternum II has a basal plate limited laterally with shallow carina ( Fig. 9e View Fig ). Additionally, the scutum is shining and irregularly sparsely punctate (punctures 0-2 diameter apart). The female of C. gomphocarpi differs from C. mackinnona in having the propodeal enclosure smooth as a mirror, the lateral- and medio-longitudinal furrows nearly lacking and the sternum II has no basal plate. The female of C. illustris is similar to C. mackinnona but differs in having the scutum densely longitudinally punctured and the apical margin of clypeus is tongue-like produced and without teeth. The female of C. xosa differs from C. mackinnona in having the apical margin of the clypeus tongue-like produced and median emarginate, the scutum has longitudinal rugae and punctures between them and the epimeron is not unusually swollen. The female of C. namibiensis differs from C. mackinnona in having the clypeus distinctly convex in lateral view, a small point on apical one-third of median area, the propodeal enclosure is smooth as a mirror, the sternum II has no basal plate and the epimeron is not unusually swollen. The female of C. nigeriaensis differs from C. mackinnona in having the clypeus distinctly convex in lateral view, the scutum is micropunctate and coarsely densely punctate, the epimeron is not unusually shaped and the sternum II has no basal plate, the apical margin of clypeus has a tooth lateral and the mandible has a small emargination internally.

The male of C. mackinnona is characterized by an apical margin of clypeus black and tridentate ( Fig. 10a View Fig ) and a nearly flat clypeus in lateral view ( Fig. 10b View Fig ), the flagellomeres VII-XI have shining broad tyloidea ( Fig. 10c View Fig ), the sternum II has a semicircular basal plate shallowly delimited behind ( Fig. 10e View Fig ) and the pygidial plate is distinctly narrowed basally ( Fig. 10f View Fig ). Additionally, the propodeal enclosure is obliquely rugose, the lateral carina of pronotum is ending in a point and the sterna III-IV have more or less developed long erect setae which not obscure the underlying sculpture. The male of priesneri differs from C. mackinnona in having the apical margin of clypeus yellowich-brown and edentate, the propodeal enclosure is smooth and the body is predominantly yellow. The male of namibiensis differs from C. makinnona by having the pronotal enclosure smooth, the sternum II without a basal plate and the flagellum without tyloidea.

D e s c r i p t i o n: ♀, 8-10 mm. Sculpture: median part of clypeus slightly concave in lateral view ( Fig. 9b View Fig ); apical margin of clypeus produced with fore more or less developed teeth, in some specimens nearly straight ( Fig. 9a View Fig ); mandible edentate internally; prosternum without transverse carina; pronotal collare lateral rounded; propodeal enclosure irregularly obliquely rugose (variably); petiolus wider than long ( Fig. 9d View Fig ); sternum II with basal plate limited with shallow carina ( Fig. 9e View Fig ); mesopleuron without tubercle; epimeron unusually swollen but without distinct crest; coxa III without longitudinal carina; flagellum ( Fig. 9c View Fig ); pygidial plate basal slightly narrower than apical ( Fig. 9f View Fig ). Puncturation: medioclypeal area shining and very sparsely finely punctate (punctures 2-4 diameters apart); clypeal sides dull; frons dull and punctate; vertex densely punctate; prosternum dull and sparsely punctate; scutum shining and irregularly punctate (punctures 0-2 diameters apart); scutellum more sparsely punctate; metanotum finely punctate; tegula impunctate; mesopleuron and propodeal sides coarsely reticulate-punctate; terga I-IV densely punctate; tergum V dull and sparsely finely punctate; pygidial plate densely punctate; sterna shining and lateral punctate. Pilosity: clypeal sides covered with white appressed setae; sternum V with more or less long setae which not obscure underlying sculpture; rest of body covered with sparse setae. Coloration: very variably; black; following parts whitish-yellow: clypeus, frons, tegula, metanotum, terga apical, mandible basal; legs black, ferruginous and yellow (variably); flagellum ventral ferruginous, dorsal fuscous; some specimens with gaster ferruginous and yellow; wings hyaline, radial cell of forewing fuscous.

♁, 8-10 mm. Sculpture: apical margin of clypeus tridentate and clypeus in lateral view flat ( Fig. 10a,b View Fig ); mandible edentate internally; flagellomers VII-XI with flat shining tyloidea ( Fig. 10c View Fig ); prosternum lateral with short rugae; pronotal collar lateral rounded; lateral carina of pronotum ending in point; mesopleuron without tubercle; epimeron unusually swollen; propodeal enclosure obliquely rugose; petiolus wider than long ( Fig. 10d View Fig ); pygidial plate distinctly narrower basal than apical ( Fig. 10f View Fig ); sternum II with basal plate more or less delimited behind ( Fig. 10e View Fig ); coxa III without longitudinal carina; genitalia ( Fig. 10g View Fig ). Puncturation: clypeus and frons shining and sparsely punctate; vertex shining and sparsely punctate; pronotal collare densely punctate; prosternum micropunctate; scutum shining and variably irregularly punctate (punctures 0-1 diameter apart); scutellum sparsely punctate (punctures 1-2 diameters apart); mesopleuron and propodeal sides coarsely reticulate-punctate; terga coarsely punctate; mesopleuron venter shining and very finely sparsely punctate; sterna medially finely and apico-laterally coarsely punctate. Pilosity: clypeal brush broad ( Fig. 10a View Fig ); sterna III-VI with more or less long erect setae which not obscure underlying sculpture; rest of body with sparse setae. Coloration: black; following parts yellow: clypeus, frons, interantennal carina, mandible basally, scapus anteriorly, pronotal lobes laterally, tegula, metanotum, terga apically; petiolus, tergum II and sternum II partly ferruginous; flagellum ferruginous and partly fuscous; legs black, ferruginous and yellow; wings hyaline, radial cell fuscous.