Synergus laticephalus Nieves-Aldrey & Medianero, 2011

Lobato-Vila, Irene, Equihua-Martínez, Armando, Estrada-Venegas, Edith G., Cibrián-Tovar, David, Barrera-Ruíz, Uriel M. & Pujade-Villar, Juli, 2020, Synergus Hartig species group (Hymenoptera: Cynipidae: Synergini) with partially smooth mesopleurae from the New World, Zootaxa 4822 (1), pp. 1-38 : 21-22

Synergus laticephalus Nieves-Aldrey & Medianero, 2011

Synergus laticephalus Nieves-Aldrey & Medianero, 2011 . Zootaxa 2774: 6. Type material: MNCN [not examined].

Diagnosis. Synergus laticephalus is the only species addressed in this study that has the malar space as long as height of compound eye and the head strongly transverse in dorsal view, being more than 2.5 times as wide as long.

Brief redescription. According to the original description and pictures provided by Nieves-Aldrey and Medianero (2011), this species is characterized by the following combination of traits: female antenna 14-segmented, males unknown; F1 as long as F2; head strongly transverse in dorsal view, being more than 2.5 times as wide as long; face wide, trapezoidal, about 1.4 times as long as height of compound eye; malar space about as long as height of compound eye; frons and vertex alutaceous, without punctures, shiny; frontal carinae absent; mesoscutum with weak coriaceous-alutaceous sculpture; notauli complete and well impressed but narrow; scutellum coriaceous with some transversal rugae and scutellar foveae quadrangular, shallow, smooth, with posterior margins not well defined; circumscutellar carina well defined, upturned and somewhat projected; mesopleurae with weak longitudinal, regular striae, the interspaces smooth, neither extended ventrally nor at the speculum, which are smooth; metasoma not dorsodistally incised, slightly pointed and without micropunctures; radial cell ambiguously closed, about 2.4 times as long as wide; tarsal claws with a basal tooth. For more details on the morphology of this species, see Nieves-Aldrey & Medianero (2011).

Distribution. Panama ( Nieves-Aldrey & Medianero 2011).

Biology. Reared from undetermined spherical galls on twigs of Quercus salicifolia Née (Lobatae section) ( Nieves-Aldrey & Medianero 2011).