Trigonalys melanoleuca Westwood, 1835

Santos, Bernardo F., Aguiar, Alexandre P. & Tedesco, Anazelia M., 2012, Trigonalidae (Hymenoptera) from cacao agroforestry systems in northeastern Brazil, with two new species of Trigonalys Westwood, Journal of Hymenoptera Research 25, pp. 19-34 : 21-22

Trigonalys melanoleuca Westwood Figs 1-2

Trigonalys melanoleuca Westwood 1835:53. Lectotype ♀, designated by Carmean and Kimsey (1998), Brazil (BMNH, not examined)

Diagnosis.

Black with whitish marks; mesopleuron with large white mark placed just ventrad to scrobal sulcus; legs with extensive white marks; propodeum and metasoma with extensive whitish or yellow marks. Fore wing distinctly infuscated, much darker centrally and antero-apically; metasomal armature absent, posterior margin of tergum I rounded ( Fig. 2 ); propodeum uniformly punctate; propodeal foramen shaped as an inverted U.

Material examined.

13 ♀♀, 28 ♂♂. BRAZIL, Bahia, Malaise trap, JCardoso & JMaia. 1 ♀, Barra do Rocha, Fazenda Iacina, Pt. 1, 19.XI.2002. 3 ♂♂, Buerarema, Fazenda Boa Sorte, Pt. 3, 29.XI.2002; 1 ♂, same data except Pt. 4; 4 ♂♂, same data except Pt. 5; 3 ♂♂, same data except Pt. 6; 1 ♂, same data except Pt. 7. 1 ♂ from Ilhéus, CEPLAC/ESOMI, Borda, Pt. 2, 8.VIII.2001. 1 ♀, Ipiaú, Fazenda Afegan, Pt. 2, 21.XI.2002. 1 ♂, Itacaré, Fazenda Muchirão, Pt. 1, 22.XI.2002; 1 ♀, same data except Pt. 7, 9.IV.2003. 1 ♀, Itororó, Fazenda Bela Vista, Pt. 8, 15.XII.2003 (UFES). 1 ♂, Ubaitaba, Fazenda Casa de Pedra, Pt. 1, 9.IV.2003; 1 ♂, same data except Pt. 3; 1 ♀, same data except Pt. 4, 13.XII.2003; 1 ♀, same data except Pt. 5, 16.VIII.2002; 1 ♂, same data except 9.IV.2003; 1 ♀ 1 ♂, same data except Fazenda Fortaleza, pt. 1, 16.VIII.2002; 1 ♂, same data except Pt. 3; 1 ♂, same data except Pt. 4, 20.XI.2002; 2 ♂♂, same data except XII.2003; 1 ♀ 6 ♂♂, same data except Pt. 5, 20.XI.2002; 1 ♂, same data except 15.VI.2003; 1 ♀, same data except Pt. 6; 1 ♂, same data except 13.XII.2003; 1 ♀, same data except Pt. 8, 9.IV.2003. 1 ♂, Uruçuca, Fazenda Bom Jardim, 12.IV.2003; 1 ♀, same data except Pt. 2, 23.XI.2002; 1 ♂, same data except 9.XII.2003 (CEPLAC); 1 ♀, same data except Pt. 4, 23.XI.2002; 1 ♀, same data except Pt. 8 (UFES).

Comments.

Trigonalysmelanoleuca was one of the first trigonalid species to be described. It may be the most commonly collected species of the family in the Neotropics. In spite of that, its hosts are still unknown. The examined specimens exhibit substantial intraspecific variation, particularly the wing venation. This high variation, however, seems to be the rule for Trigonalidae as a whole ( Carmean and Kimsey 1998).

Figures

Figures 1 - 2. Trigonalys melanoleuca Westwood. 1 Lateral habitus. Morphobank accession number (M 99947) 2 Dorsal habitus. Morphobank accession number (M 99948)