Stenosigma allegrum (Zavattari, 1912)

(Figs. 1, 8, 15, 20, 25, 28)

Eumenes allegrus ZaVattari, 1912: 83 .

Stenosigma allegrum; GiOrdani SOika, 1978: 408. GiOrdani SOika, 1990: 148. Hermes et al., 2014: 456, 464, 480, 482, 483, 484. Hermes & Ferreira, 2016: 123.

Type data: Holotype female (ZMHB). Examined.

Type locality: Alegrete, Brazil.

Comments and Diagnosis. Stenosigma allegrum, the type species of the genus, was transferred from Eumenes by Giordani Soika (1978). The species is easily recognized by the pronotal carina without an evident lamella (Fig. 15) and by the dense and deep punctation of the pronotum and mesepisternum (Fig. 20). Additionally, S. allegrum has the typical blackish and brownish color of the integument (Fig. 1) also present in the species S. humerale and S. quechua, but differs from these by having the lateral margins of T1 distinctly fused ventrally in the basal portion (Fig. 28). The species was first reported from “Allegretto” (type locality) and Nova Teutonia—both localities in southern Brazil. However, its distribution is apparently broader with new collection records in the southeast of the country (Minas Gerais, Espírito Santo and São Paulo).

Type Material. Brazil, “Alegretto”: holotype ♀ (ZMHB), ‘3119’ ‘...’ (green label, unreadable) ‘Typus’ ‘Type’ (red label) ‘ Eumenes \ allegrus Zav. \ ♀ E. Zavattari, det.’.

Additional material examined. Brazil, Espírito Santo: 1 ♀ (UFES), ‘ UFES n°\ 96078’ ‘ BRASIL, ES, Sta.

Maria de Jabibá \ Faz. Clarindo Krüger\ 20°04’27’’S 40°44’51.3’’W \ 29.xi.–06.xii.2002, Malaise T 7\ Tavares,

Azevedo &eq. col.’ ‘ Stenosigma \ umerale GS ♀’. Brazil, Santa Catarina: 1 ♀ (AMNH), ‘Nova Teutonia\ Santa Catarina\ BRAZIL III-14-66 \ Fritz Plaumann’ (partially handwritten label); 1 ♂ (AMNH), ‘Nova Teutonia\ Santa Catarina\ BRAZIL I-66 \ Fritz Plaumann’ ‘ Stenosigma ♂\ allegrum (Zav.) \ det. d. v. d. Vecht 79’; 1 Brazil, Cantareira: 1 ♀ (AMNH), ‘Cantareira\ Coher’ (handwritten label) ‘ Stenosigma \ Det. J. M. Carpenter’ (partially handwritten label) ‘ Stenosigma ♀\ allegrum (Zav.) \ Y. C. Grandinete det. 2015’ (partially handwritten label); Brazil, São Paulo: 1 ♀ (CEUFLA), ‘Brasil, São Paulo,\ Campos do Jordão\ Serra da Mantiqueira\ 1508m. 21.x.2013 \ Locher, G. A. col.’; 1 ♀ (CEUFLA) ‘Brasil, São Paulo,\ Taubaté, Serra da\ Quebrada, Cargulho\ 18.i.2014 \ Locher, G. A. col.’. Brazil, Minas Gerais: 1 ♀ (CEUFLA), ‘Brasil, Minas Gerais\ Ingaí, Res. Biol.\ Boqueirão 21°20’47”S\ 44°59’27”W. 2009/2010\ M. H. Simões’.

Collecting Records. Brazil [Alegrete (RS); Nova Teutonia (SC); Sta. Maria de Jetibá (ES); Ingaí (MG); Taubaté, Campos do Jordão, Serra da Cantareira (SP)].