Apenesia kelsiela Alencar & Azevedo

Alencar, Isabel D. C. C. & Azevedo, Celso O., 2020, Revision of the world Apenesia Westwood (Hymenoptera, Bethylidae), Zootaxa 4724 (1), pp. 1-72: 27-28

publication ID


publication LSID


persistent identifier


treatment provided by


scientific name

Apenesia kelsiela Alencar & Azevedo

sp. nov.

Apenesia kelsiela Alencar & Azevedo  , sp. nov.

( Figs 4EView FIGURE 4, 6KView FIGURE 6, 9CView FIGURE 9, 12AView FIGURE 12, 14FView FIGURE 14, 21View FIGURE 21 G–I)

Description. Holotype. Male. Length 2.7 mm. LFW 2.5 mm.

Colors. Body reddish castaneous; antenna, clypeus, mandible and legs castaneous; wings hyaline, veins castaneous.

Head. Head wider than long, rectangular. Frons weakly coriaceous, sparsely puncticulate; frontal line absent. Vertex slightly convex. Clypeus broad with median lobe subtrapezoidal, median tooth small, apical margin smooth, median carina short in profile. Mandible with one apical tooth. Eye strongly bulging. Ocelli large, triangle with distal edges.

Mesosoma. Dorsal pronotal area very short. Notaulus present, complete, weakly converging posterad. Parapsidal signum weakly impressed. Mesoscutellum as long as wide, posterior margin convex; mesoscutum-mesoscutellar sulcus weakly arched, without fovea on side edge, narrow, deep. Axilla oval, deep, large. Metanotal trough imbricate, metanotal fovea oval; median region narrow, large, with posterior margin straight. Metapectal-propodeal complex short, posterior margin almost straight; metapostnotal median carina absent, metapostnotum strigate anteriorly, and polished. Metapectal-propodeal complex polished. Paraspicular sulcus polished; lateral carina of metapectal-propodeal carina absent; lateral surface of propodeum imbricate, inferior region imbricate. Propodeal declivity polished-imbricate.

Metasoma. Petiole short. Hypopygium with plate short, posterior margin strongly concave, flap present. Genitalia: paramere straight. Basivolsella apical inner margin smooth. Basiparamere with apical dorsal projection small, apex acute. Cuspis with apical margin with two apical calli, ventral larger than other, dorsal end long.Aedeagus with two apical lobes, ventral lobe large; dorsal lobe short; subapical membrane short; aedeagal dorsal cover wide.

Female. Unknown.

Material examined. Holotype ♂, BRAZIL, Amazonas , Manaus , Reserva Ducke, Igarapé Ipiranga, 31.XII.2002, Arm. Malaise, J. Vidal & J. Vidal col. ( INPA)  . Paratypes: TRINIDAD [AND TOBAGO], 1 ♂, 8 km N Arima, Simla Res [erve] Sta [tion] {= William Beebe Tropical Research Station }, [10°40’N], [61°18’W], 14–24. VIGoogleMaps  .1993, M[alaise] T [rap], lower montane rain for[est], 260 m, S. & J. Peck [col.] ( CNCI)  ; TRINIDAD, 1 ♂, Tunapuna, Mt. St. Bene- dict, 4–13. VI  .1993, FIT  , ravine for. Bottom, 230m, 93-3, S. & J. Peck ( CNCI)  ; BRAZIL, Pará: 1 ♂, Belém, Dec. 1–4 1969, J. M. & B. A. Campbell ( AEIC); 1 ♂, Juriti, Propriedade Barroso, Arm. Malaise, J. N. Santos & L. A. Quaresma col. ( MPEG); 1 ♂, Anapu, Rio Xingu , Caracol , Barra do Vento , 07–10.VIII.2008, Arm. Malaise, O. T  . Silveira & equipe col. ( MPEG); 3 ♂, Vitória do Xingu, Rio Xingu, Igarapé Di Maria , 12–16.VIII.2008, Arm. Mal- aise, O. T  . Silveira & equipe col. ( MPEG); 1 ♂, Altamira, Rio Xingu, Itapuama , [03°13’16”S], [52°12’31”W], 19– 23.VIII.2008, arm[adilha] Malaise, O. TGoogleMaps  . Silveira & equipe col. ( MPEG); 1 ♂, Altamira, Rio Xingu   , Ilha Grande , 06–10.XI.2007, Arm. Malaise, O. T  . Silveira & equipe col., ( MPEG); 1 ♂, Canaã dos Carajas , mata, 6.4°85’85”S, 49.8°98’56”W, 26.VII.2004, Arm. Malaise, R  . M. Valente & E. M. Santos col. ( MPEG); 1 ♂, Bahia, S. J. da Vitória, Faz. São Roque , 15°04’S, 39°18’W, 12.III.2001, Arm. Malaise, J. A. Cardoso & J. RGoogleMaps  . Maia ( CEPLAC)  .

Comments. This species is similar to A. juliela  by having the head wider than long; the mandible with one tooth; the notaulus complete; the mesoscutum-mesoscutellar suture weakly arched, wide and deep; the hypopygium with flap and posterior margin concave. However, A. kelsiela  has the metapostnotum almost all polished, being only strigate anteriorly and metapostnotal median carina absent, whereas A. juliela  has the metapostnotum irregularly strigate and metapostnotal median carina present.

Distribution. Neotropical ( Trinidad and Tobago, Brazil).


Instituto Nacional de Pesquisas da Amazonia


Mykotektet, National Veterinary Institute


Tavera, Department of Geology and Geophysics


Canadian National Collection Insects


American Entomological Institute


Museu Paraense Emilio Goeldi


Departamento de Geologia, Universidad de Chile