Leptomenes globosus, Selis, 2025

Selis, Marco, 2025, The solitary vespid wasps of Madagascar (Hymenoptera: Vespidae: Eumeninae, Raphiglossinae and Zethinae), Zootaxa 5705 (1), pp. 1-171 : 82-84

publication ID

https://doi.org/10.11646/zootaxa.5705.1.1

publication LSID

lsid:zoobank.org:pub:F8C98380-AA48-4BB9-9A6B-C9B3D72E154E

DOI

https://doi.org/10.5281/zenodo.17326952

persistent identifier

https://treatment.plazi.org/id/190A0E05-FFBE-FFAE-FF0A-F9FE0725C08E

treatment provided by

Plazi

scientific name

Leptomenes globosus
status

sp. nov.

Leptomenes globosus sp. nov.

( Figs 36 View FIGURE 36 , 64M View FIGURE 64 )

Diagnosis. This species is immediately recognizable from other Malagasy Leptomenes by the globose, short and strongly convex mesosoma ( Fig. 36B View FIGURE 36 ), and by the humped posterior half of T1 ( Fig. 36C View FIGURE 36 ).

Type material examined. HOLOTYPE: ♂ labelled “ CASENT / 2218475 // MADAGASCAR: Tulear / Beroboka village 45 km NE / Morondava, elev 150 ft / 28 April–6 May 2008 / 19°58.65'S 44°39.92'E // Calif. Acad. of Sciences / coll: M.Irwin, R.Harin’Hala / malaise, Antsarongaza / gallery forest MG-45B-21 // Leptomenes globosus / HOLOTYPUS ♂ / Det. Marco Selis 2024 [red label]” ( CAS, code CASTYPE21752) GoogleMaps . PARATYPES: Tulear , Mikea Forest, NW of Manombo, 22.903667S 43.475500E, 30 m, 17–27.VII.2003, leg. M. Irwin & R GoogleMaps . Harin’Hala, 1♀ ( CAS, code CASENT8105917 ); Tulear, 8km vor Sakaraha, Fluss-Tal (Tende), 15–18. V .1997, leg. M. Madl, 1♀ ( NHMW) .

Description. Male holotype ( Fig. 36B View FIGURE 36 ). Body length 6.5 mm; fore wing length 5.5 mm.

Head 1.15× as wide as high. Clypeus in frontal view 1.05× as wide as long, free apical part shorter than interocular part, apical margin deeply emarginate and 0.25× as wide as clypeus, emargination 1.45× as wide as deep, apical teeth triangular and pointed, almost spiniform; clypeus in lateral view weakly and evenly convex.Vertex 1.65× as long as ocellocular distance, weakly convex anteriorly and strongly sloping in posterior third. Gena 0.6× as wide as eye at bottom of ocular sinus; occipital carina complete and shortly lamellate, shorter dorsolaterally on transition from vertex to gena, more or less evenly curved on gena except for shallow sinuosity around middle. F1 2.3× as long as wide and 1.55× as long as F2, F2–F4 longer than wide, F5–F9 subquadrate; F11 claw-shaped, in lateral view with convex dorsal margin, flattened ventral face and somewhat pointed apex, reaching apex of F8, in dorsal view slightly curved outwards; F8 and F9 with tyloids shaped like flattened shiny areas, subtriangular on F8 and covering the whole ventral surface on F9. Mesosoma globose, in dorsal view 1.15× as long as wide and with markedly rounded sides, in lateral view about as high as long. Pronotum with nearly straight but markedly converging sides; pronotal carina complete and sharp, somewhat lamellate on dorsal face, and almost evenly rounded on humeri, in the middle separated from mesoscutum by a length equal to two ocellar diameters; pretegular carina absent. Mesoscutum markedly convex in lateral view, 1.15× as wide as long in dorsal view. Scutellum convex and markedly oblique, posterior margin placed much below level of anterior margin, anterior margin deeply furrowed; axillary fossa large and rounded, somewhat larger than one ocellar diameter. Metanotum nearly vertical and convex, convexity stronger in upper half. Tegula about as long as wide, outer margin strongly but evenly convex, posterior lobe short and acute with pointed apex, not equaling parategula; parategula broad and convex with rounded apex. Mesepisternum convex, separated from epicnemium by a fine and irregular epicnemial carina, barely visible; epimeron not separated from mesepisternum. Dorsal margin of metaepisternum produced in a sharp margin forming a subtriangular lobe directed posterolaterally. Propodeum short and nearly vertical, weakly convex in lateral view; dorsal faces of propodeum weakly convex and nearly vertical, reaching submarginal carina and widely separated below metanotum; lateral faces of propodeum flattened, posterodorsally separated from dorsal faces but lateral carinae missing; posterior face of propodeum forming a small and shallow concavity, not clearly separated from dorsal faces, mid-line with very fine longitudinal carina; submarginal carina of propodeum forming a subtriangular lobe, fused with propodeal valvula except for its rounded apex. T 1 in dorsal view somewhat campanulate, with sides more strongly converging in anterior half than posteriorly, longer than apically wide; T 1 in lateral view raising obliquely behind insertion of suspensory ligament and then forming a distinct bulge behind middle, shallowly depressed behind bulge and then thickened at apex. T 2 in dorsal view about as long as wide with strongly convex sides, wider than T1 and markedly constricted basally; apical margin of T2 with a very narrow translucent margin barely differentiated from preceding surface. S 2 in lateral view evenly and strongly convex, similarly to T2.

Head and mesosoma with deep and dense punctures, interspaces very narrow and forming a sharp reticulation on most sclerites; clypeus very densely and finely micropunctate with few scattered barely visible punctures; gena with a longitudinal impunctate area; metanotum with some wide and shiny interspaces on lower half; punctures on mesepisternum larger than on dorsal face of mesosoma; metaepisternum irregularly microsculpted and ridged, with a leathery appearance; dorsal faces of propodeum with even denser punctures and interspaces reduced to very fine and sharp ridges, lateral faces microstriate with sparse deep punctures, mid-line of propodeum with some short transverse ridges. Metasoma with oblique deep punctures, smaller than those on mesosoma; T1 with few scattered punctures on anterior part, posterior part densely punctate with interspaces shiny and about as wide as one puncture diameter; T2 with punctures larger and sparser basally and becoming finer and denser apically, forming a very dense preapical band; T3–T6 with oblique punctures, dense and coarser on T3 and becoming progressively sparser and finer; T7 micropunctate with few barely visible punctures; S1 shagreened with very fine punctures on basal stalk, shiny with deep punctures separated by convex interspaces on enlarged part; S2 similar to T2 but punctures larger and sparser, denser on disc than on margins; S3–S7 similar to respective tergites but punctures sparser. Covered in very short pubescence, pale golden on head and mesosoma and pale brownish on metasoma, denser on head, propodeum and sides of mesosoma; head with short curved setae on frons; metasoma with fine erect setae on most of S1 and S6–S7 and at apex of remaining segments; apical margin of S7 with a sparse brush of yellowish-white setae.

Black with extensive and not sharply delimited dark-red markings, face paler and becoming ferruginous on lower part and clypeus. Legs black with red tibiae and tarsi. T1 with ivory narrow line covering thickened margin; T2 and S2 with broader and sinuate pale band, ivory suffused with orange basally. Wings fusco-hyaline with brown tinge.

Female. Larger than male (body length 8.0 mm) and differing as follows: clypeus 1.1× as long as wide, apical margin 0.25× as wide as clypeus and margined by long spiniform teeth, vertex with cephalic foveae touching each other and forming a single fovea not housed in a modified area, mandible strongly elongate and almost as long as longitudinal axis of eye, mesosoma more elongate and 1.2× as long as wide, T1 more elongate and with stronger dorsal hump, clypeus pale yellow on apical half.

Distribution. Madagascar: Toliara ( Fig. 64M View FIGURE 64 ).

Etymology. The specific epithet refers to the globose morphology of the mesosoma of this species.

R

Departamento de Geologia, Universidad de Chile

CAS

California Academy of Sciences

V

Royal British Columbia Museum - Herbarium

NHMW

Naturhistorisches Museum, Wien

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Eumenidae

Genus

Leptomenes

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