Striatoandrius barriosi n. comb

Striatoandrius barriosi (Medianero and Nieves- Aldrey 2019) n. comb. R e c e n t l y d e s c r i b e d s p e c i e s f r o m P a n a m a (Medianero and Nieves-Aldrey 2019). Morphologically, it has the second metasomal segment striated as S. georgei, S. nievesaldreyi and S. sanchezi n. sp. and the notauli are percurrent as S. nievesaldreyi. Striatoandricus barriosi differs from S. nievesaldreyi in that its second mesosomal tergite completely sculptured, without smooth dorso-lateral area with longitudinal striae strong, well-marked and visible, almost reaching posterior margin of metasomal tergite (usually with a dorso-lateral area smooth and shiny with striae weak, slightly marked and incomplete, not reaching margin of metasomal tergite in S. nievesaldreyi), mesoscutum longer than broad (as long as broad in S. nievesaldreyi), dorsal area of mesopleuron weakly sculptured to smooth (entirely sculptured in S. nievesaldreyi), forewing venation strongly pigmented (brown veins in S. nievesaldreyi) and Rs + M vein conspicuously connected to lower half of basal vein (Rs + M vein not connected to basal vein in S. nievesaldreyi). © 2020 Academia Sinica, Taiwan © 2020 Academia Sinica, Taiwan © 2020 Academia Sinica, Taiwan The gall is a fused mass of larval chambers as also occurs in S. georgei, S. nievesaldreyi and S. sanchezi n. sp. Galls of S. barriosi occurs in Q. bumelioides Liebm. and Q. insignis M. Martens and Galeotti (section Quercus). Remarks: In Medianero and Nieves-Aldrey (2019) mention that this species can also be differentiated from S. nievesaldreyi by its color (black in S. barriosi and ambarine in S. nievesaldreyi). Nevertheless, after studying long series of S. nievesaldreyi, the coloration is very variable in this species including specimens completely ambarine, specimens ambarine with variable black marks or specimens completely black. © 2020 Academia Sinica, Taiwan Also, the authors of the same paper mention that the gall of S. barriosi is similar to that of Andricus guatemalensis (Cameron 1883); this species has been considered incertae sedis by Pujade-Villar et al. (2011) because is not possible to differentiate the species according to the morphology of galls. In the original description, Cameron (1883: 71) mentions that the gall of Cynips guatemalensis is a hard mass covered of a long pilosity, but the adults obtained corresponds to an inquiline Synergus dorsalis Cameron (see the dissertation in Ritchie and Shorthouse 1987).
Published as part of Cuesta-Porta, Víctor, Arnedo, Miquel A., Cibrián-Tovar, David, Barrera-Ruiz, Uriel M., García-Martiñón, Rosa D., Equihua-Martínez, Armando, Estrada-Venegas, Edith G., Clark-Tapia, Ricardo, Romero-Range, Silvia & Pujade-Villar, Juli, 2020, A New Genus of Oak Gall Wasp, Striatoandricus Pujade-Villar (Hymenoptera: Cynipidae: Cynipini) from America with Descriptions of Two New Mexican Species, pp. 1-21 in Zoological studies (Zool. Stud.) (Zool. Stud.) 59 (8) on pages 6-10, DOI: 10.6620/ZS.2020.59-08, http://zenodo.org/record/8069104
{"references":["Medianero E, Nieves-Aldrey JL. 2019. Andricus barriosi: a new species of oak gall wasp (Hymenoptera: Cynipidae: Cynipini) from Panama. Zootaxa 4577 (3): 585 - 595. doi: 10.11646 / zootaxa. 4577.3.12.","Cameron P. 1883. Hymenoptera Biology Centrali-America. Vol. 1., 497 pp., 120 pl.","Pujade-Villar J, Equihua-Martinez A, Estrada-Venegas EG, Serrano-Munoz MJ, Lomeli-Flores R. 2011. Una nueva especie mexicana del genero Andricus con caracteres muy peculiares: A. georgei Pujade-Villar n. sp. (Hymenoptera, Cynipidae). Boletin de la Sociedad Entomologica Aragonesa 49: 27 - 32.","Ritchie AJ, Shorthouse JD. 1987. A review of the species of Synergus from Guatemala, with notes on Cynips guatemalensis Cameron (Hymenoptera: Cynipidae). P Entomol Soc Wash 89 (2): 230 - 241."]}