Habritella Girault & Dodd, 1915

Mitroiu, Mircea-Dan, 2022, The Afrotropical species of Habritella Girault & Dodd (Hymenoptera: Pteromalidae), European Journal of Taxonomy 813 (1), pp. 155-172 : 157-159

publication ID	https://doi.org/ 10.5852/ejt.2022.813.1743
publication LSID	lsid:zoobank.org:pub:5CF8D9A5-2A86-47C9-886E-F0EB3F2EFC91
DOI	https://doi.org/10.5281/zenodo.6470682
persistent identifier	https://treatment.plazi.org/id/03D587F3-FFF0-D304-FDB9-D366FA9A96F0
treatment provided by	Felipe
scientific name	Habritella Girault & Dodd, 1915
status

Treatment

Genus Habritella Girault & Dodd, 1915 View in CoL

Habritella Girault & Dodd, 1915 View in CoL in Girault, 1915: 191 (type species: H. graciliventris Girault & Dodd, 1915 View in CoL , by monotypy).

Cairnsia Bouček, 1988: 421–422 View in CoL (type species: C. stylifera Bouček, 1988 , by original designation and monotypy).

Ezgia Koçak & Kemal, 2008: 3–7 (replacement name for Cairnsia Bouček, 1988 View in CoL ), syn. nov.

Neocairnsia Darilmaz & Özdikmen, 2009: 37–42 (unnecessary replacement name for Cairnsia Bouček, 1988 View in CoL ).

Diagnosis

Clypeal margin moderately to deeply emarginate, hence appearing bidentate or bilobed ( Figs 1C View Fig , 3C View Fig , 4C View Fig ), rarely virtually straight ( Fig. 2C View Fig ); toruli above middle of face, hence scape usually reaching above level of vertex ( Figs 1C View Fig , 3C View Fig , 4C View Fig ); female antenna 11353 ( Figs 1G View Fig , 2G View Fig , 3G View Fig , 4G View Fig ), male antenna 11263 ( Figs 1H View Fig , 2H View Fig , 3H View Fig , 4H View Fig ); clava in both sexes more or less pointed, with a spicula or small terminal process ( Figs 1H View Fig , 2G, 2H View Fig , 3H View Fig ) or without ( Figs 1G View Fig , 3G View Fig , 4G–H View Fig ); pronotal collar much narrower than mesoscutum, anterior margin rounded, angled or very finely carinate; notauli incomplete; propodeum short on sides but with large reticulate nucha and sinuate plicae, without median carina or costula ( Figs 1D View Fig , 2D View Fig , 3D View Fig , 4D View Fig ); stigmal vein usually strongly capitate ( Figs 2F View Fig , 3F View Fig , 4F View Fig ); metasoma sessile, narrow ( Figs 1E View Fig , 2E View Fig , 3E View Fig , 4E View Fig ).

Redescription

BODY. Gracile, with at least some distinct metallic reflections ( Figs 1A–B View Fig , 2A–B View Fig , 3A–B View Fig , 4A–B View Fig ). Body setation at least partly whitish, conspicuous at least on the face ( Figs 2C View Fig , 3C View Fig , 4C View Fig ).

HEAD. Wider than high in frontal view, genae quite strongly converging and vertex not high ( Figs 1C View Fig , 2C View Fig , 3C View Fig , 4C View Fig ). Clypeus more or less well delimited ( Figs 1C View Fig , 2C View Fig , 3C View Fig , 4C View Fig ). Clypeal margin symmetric, usually moderately to strongly emarginate or incised in the middle hence appearing bidentate or bilobed ( Figs 1C View Fig , 3C View Fig , 4C View Fig ), or virtually straight ( Fig. 2C View Fig ). Tentorial pits absent. Scrobal depression at least slightly visible. Gena usually not hollowed at mouth corner ( Figs 1C View Fig , 3C View Fig , 4C View Fig ), but sometimes with large depression ( Fig. 2C View Fig ). Genal carina absent. Malar sulcus present as a fine line. Eyes normal to slightly enlarged. Temples distinct, strongly convergent. Occiput without carina.Antennal insertion clearly above middle of face, sometimes very high ( Figs 1C View Fig , 3C View Fig ). Antennal formula 11353 in female ( Figs 1G View Fig , 2G View Fig , 3G View Fig , 4G View Fig ) and 11263 in male ( Figs 1H View Fig , 2H View Fig , 3H View Fig , 4H View Fig ). Anelli transverse. Antennal scape normal. Female antennal clava with ventral area of micropilosity confined to distal segment, apex in both sexes more or less pointed, with a spicula or small terminal process ( Figs 1H View Fig , 2G, 2H View Fig , 3H View Fig ) or without ( Figs 1G View Fig , 3G View Fig , 4G, 4H View Fig ). Mandibles 4:3, normal ( Fig. 4C View Fig ) or slightly to distinctly enlarged ( Figs 1C View Fig , 2C View Fig , 3C View Fig ).

MESOSOMA. Convex. Pronotum short conical. Pronotal collar with anterior margin rounded, angled or very finely carinate. Mesoscutum short. Notauli incomplete, superficial. Axillae slightly advanced. Mesoscutum separated from scutellum by rather deep groove ( Figs 1D View Fig , 4D View Fig ). Scutellum convex. Frenal line absent. Dorsellum usually very short. Propodeum ( Figs 1D View Fig , 2D View Fig , 3D View Fig , 4D View Fig ) much narrower laterally than medially. Propodeal plicae sinuate and reaching nuchal sides. Median carina and costula absent. Nucha large, with almost parallel sides. Callus sparsely setose. Propodeal hind corners not prominent. Propodeal spiracles large, elongate, close to metanotum. Prepectus not carinate, about as long as tegula. Mesopleuron partly smooth. Mesosternum without transverse carina. Metapleuron with a distinct groove in posterior part. Legs slender. Hind coxa dorsally bare, fairly long. Hind tibia with one spur. Wings hyaline. Fore wing ( Figs 1F View Fig , 2F View Fig , 3F View Fig , 4F View Fig ) extensively bare basally. Ventral side of fore wing with at least one row of admarginal setae under marginal vein. Marginal vein slender. Stigmal vein shorter than both marginal and postmarginal veins. Stigma usually strongly capitate ( Figs 2F View Fig , 3F View Fig , 4F View Fig ), sometimes only moderately so ( Fig. 1F View Fig ). Postmarginal vein shorter than marginal vein.

METASOMA. Lanceolate in females, much narrower than mesosoma and longer than head plus mesosoma ( Figs 1E View Fig , 2E View Fig , 3E View Fig , 4E View Fig ). Short petiole concealed under nucha. All gastral tergites normal ( Figs 2E View Fig , 4E View Fig ); or one or more of gt1, 2 or 3 with their posterior margin medially emarginate or incised ( Fig. 3E View Fig ); or gt3 or 4 distinctly enlarged ( Fig. 1E View Fig ). Gt2 always much shorter than either gt1 or gt3. Cercal setae equal. Ovipositor sheaths short but visible in dorsal view.

Taxonomic comments

Bouček (1988: 235) separated females of Ezgia (= Cairnsia ) from females of Habritella (males previously unknown for both genera) as follows:

“[...] Clava with asymmetrically placed awl-like spicula [...]; gastral tergites normal, dorsally collapsing, the third not larger than the fourth tergite …[...] Cairnsia gen. n.

– Clava normal, without spicula [...]; third tergite in female convex and greatly enlarged [...] so that it covers more than a third of gastral surface, margin of second tergite deeply excised in middle but the first angulately produced …[...] Habritella Girault & Dodd ”.

In Table 1 View Table 1 the previously described species of Ezgia and Habritella , as well as the newly described species are compared regarding the characters listed above.

Table 1 View Table 1 shows these characters are not constant within the two genera and are grouped in various combinations within the six known species. Moreover, many other morphological features are shared by all these species and are rather uniform: the shape of clypeus (except in H. mandibulata sp. nov.); the level of toruli; the antennal formula and shape of funiculars; the shape of propodeum; the venation; and the general shape of metasoma. At the same time, the claval spicula present in the females of Ezgia stylifera ( Bouček 1988: 486, fig. 735) and H. mandibulata ( Fig. 2G View Fig ) is much more developed than the small terminal process found in the males of H. africana sp. nov., H. mandibulata and H. noyesi sp. nov. The latter structure is somewhat similar to the ‘terminal button’ which is commonly found in many pteromalids. However, in these species this structure is more developed and narrower than a typical ‘terminal button’. As it is practically impossible to separate the above mentioned six species in two distinct genera due to the overlap of characters, Ezgia is regarded as a synonym of Habritella , syn. nov., and consequently its only species is transferred to the latter genus as Habritella stylifera comb. nov.

Key to the Afrotropical species of Habritella

1. Both sexes: gena hollowed near mouth corner ( Fig. 2C View Fig ); clypeus reticulate, well delimited laterally ( Fig. 2C View Fig ); clypeal margin without any median incision or emargination ( Fig. 2C View Fig ); mandibles very large ( Fig. 2C View Fig ); scape not reaching level of vertex ( Fig. 2C View Fig ). Female: claval apex with spicula ( Fig. 2F View Fig ); all gastral tergites normally developed, each with posterior margin entire ( Fig. 2E View Fig ). Male: clava with short spike-like terminal process ( Figs 2H View Fig ); metasoma brown, with a dorsal pale spot ... ...................................................................................................................... H. mandibulata sp. nov.

– Both sexes: gena not hollowed near mouth corner ( Figs 1C View Fig , 3C View Fig , 4C View Fig ); clypeus striate, not well delimited ( Figs 1C View Fig , 3C View Fig , 4C View Fig ); clypeal margin with median incision or emargination ( Figs 1C View Fig , 3C View Fig , 4C View Fig ); mandibles smaller than in alternative ( Figs 1C View Fig , 3C View Fig , 4C View Fig ); scape reaching above level of vertex ( Figs 1C View Fig , 3C View Fig , 4C View Fig ). Female: claval apex without spicula ( Figs 1F View Fig , 3F View Fig , 4F View Fig ); part of gastral tergites usually either enlarged or with posterior margin incised or emarginated ( Figs 1E View Fig , 3E View Fig ). Male: clava sometimes without spike-like terminal process ( Fig. 4H View Fig ); metasoma variable ................................ 2

2. Both sexes: clypeal margin with small lobes separated by shallow emargination ( Fig. 4C View Fig ); scutellum shorter than mesoscutum; toruli above centre of face but less high than in alternative ( Fig. 4C View Fig ); fore wing ( Fig. 4F View Fig ) densely setose, speculum smaller than in alternative, not reaching stigmal vein thus admarginal setae on ventral side of wing not easily visible; stigma very large, its height at least equal to minimum distance from stigma to PMV; fore and mid coxae not metallic ( Fig. 4A–B View Fig ). Female: all gastral tergites normally developed, each with its posterior margin entire ( Fig. 4E View Fig ); head in frontal view with contrasting colours, bright green below toruli and blackish above ( Fig. 4C View Fig ); metasoma mainly brown ( Fig. 4E View Fig ). Male: clava without terminal spike-like terminal process ( Fig. 3H View Fig ); metasoma brown, with a dorsal pale spot ........................................................ E. viridifrons sp. nov.

– Both sexes: clypeal margin with two large lobes separated by deep incision ( Figs 1C View Fig , 3C View Fig ); scutellum longer than mesoscutum; toruli much higher than centre of face ( Figs 1C View Fig , 3C View Fig ); fore wing ( Figs 1F View Fig , 3F View Fig ) sparsely setose, speculum large, reaching stigmal vein thus making admarginal setae on ventral side of wing easily visible; stigma sometimes smaller; all coxae metallic ( Figs 1A–B View Fig , 3A View Fig ). Female: at least one gastral tergite with posterior margin medially emarginate or incised, or distinctly enlarged ( Figs 1E View Fig , 3E View Fig ); head in frontal view without contrasting colours, gradually becoming darker above toruli ( Figs 1C View Fig , 3C View Fig ); metasoma bluish or violet ( Figs 1E View Fig , 3E View Fig ). Male: clava with short spike-like terminal process ( Figs 1H View Fig , 3H View Fig ); metasoma dark, without a dorsal pale spot ................................... 3

3. Both sexes: pronotal collar with anterior margin very finely carinate ( Fig. 1A, G View Fig ); hind femur dark, with some metallic reflections ( Fig. 1A–B View Fig ); stigma not very large, its height less than minimum distance from stigma to PMV ( Fig. 1F View Fig ). Female: gt1 and gt3 with their posterior margin not emarginate or incised ( Fig. 1E View Fig ); gt4 distinctly enlarged, much larger than gt3 ( Fig. 1E View Fig ); metasoma mostly violet ( Fig. 1E View Fig ); body setation mostly light brown, not conspicuous ( Fig. 1A, C View Fig ). Male: flagellar setae erect ( Fig. 1H View Fig ) .............................................................................. H. africana sp. nov.

– Both sexes: pronotal collar with anterior margin rounded, not carinate ( Fig. 3A–B View Fig ); hind femur yellowish-brown, without metallic reflections ( Fig. 3A–B View Fig ); stigma very large, its height about equal to minimum distance from stigma to PMV ( Fig. 3F View Fig ). Female: gt1 and gt3 with posterior margin emarginate or incised, respectively ( Fig. 3E View Fig ); gt4 not distinctly enlarged, not larger than gt3 ( Fig. 3E View Fig ); metasoma mostly blue ( Fig. 3E View Fig ); body setation white, conspicuous ( Fig. 3A, C View Fig ). Male: flagellar setae depressed ( Fig. 3H View Fig ) .......................................................................... H. noyesi sp. nov.

Kingdom	Animalia
Phylum	Arthropoda
Class	Insecta
Order	Hymenoptera
Family	Pteromalidae