DOI: 10.15468/j86jts
title: A Review of the Genus Tiridates Stal (Heteroptera: Pentatomoidea: Scutelleridae)

description: This dataset contains the digitized treatments in Plazi based on the original journal article Eger, J. E. (1987): A Review of the Genus Tiridates Stal (Heteroptera: Pentatomoidea: Scutelleridae). The Florida Entomologist 70 (3): 687-716, DOI: 10.2307/3495067, URL: http://dx.doi.org/10.2307/3495067ABSTRACTThe genus Tiridates Stal is redescribed and compared to Agonosoma Laporte. The two included species and a new subspecies, T. rubrocinctus schaffneri, are described, figured, and keyed. Tiridates rubrocinctus sexmaculata Kirkaldy, T. rubrocinctus de­color Kirkaldy, T. rubrocinctus decemmaculata Kirkaldy, and T. rubrocinctus mag­nifica Kirkaldy, names proposed for Stal's (1862) varieties a-d, are placed in the synonymy of T. rubrocinctus rubrocinctus (Herrich-Schaeffer). Lectotypes and paralec­totypes are designated for T. rubrocinctus sexmaculata and T. rubrocinctus decolor and a lectotype is designated for T. rubrocinctus decemmaculata.RESUMENEl genero Tiridates Staal se redescribe y compara con Agonosoma Laporte. Se redescriben, figuran, y se le dan claves a las dos especies incluidas y a la nueva subes­pecie T. rubrocinctus. Tiridates rubrocinctus decemmaculata Kirkaldy, T. rubrocinctus decolor Kirkaldy, T. rubrocinctus decemmaculata Kirkaldy, y T. rurocinctus magnifica Kirkaldy, ombres propuestos para las variedades de a-d de Stal (1862), se ponen de sin6nimos de T. rubrocinctus rubrocinctus (Herrich-Schaeffer). Se designan lectotipos y paralectotipos para T. rurocinctus sexmaculata y T. rubrocinctus decolor, y un lec­totipo es designado para T. rubrocinctus decemmaculata.Among scutellerid genera in the subfamily Pachycorinae, Tiridates Stal, 1867, is unusual in having both male and female external genitalia almost entirely concealed by the sixth visible abdominal sternite. Certain species in several other genera of Neotrop­ical Pachycorinae also have concealed male genitalia (Agonosoma Laporte, 1832; Crathis Stal, 1861; Diolcus Mayr, 1864; Lobothyreus Mayr, 1864; and Symphylus Dallas, 1851). Of these, only Agonosoma is similar to Tiridates in size (greater than 10 mm long) and elongate oval shape. The sixth visible abdominal sternite also conceals the bulk of the female genital plates in Agonosoma, but leaves more of the 8th and 9th paratergites exposed than in Tiridates (Figs. 1, 4).Several characters may be used to separate Tiridates from Agonosoma. The length of the ostiolar rugae in Agonosoma is greater than 1/2 the distance from the ostiole to the lateral margin of the metapleuron (Fig. 5). In Tiridates the rugae extend at most 1/ 3 of the distance from ostiole to lateral margin of the metapleuron (Fig. 2). The shape of these rugae is also distinctive. In addition, the head of Tiridates is narrower and the body more convex than in Agonosoma (Figs. 3, 6).Stal (1867) proposed the genus Tiridates to include two species previously described by Herrich-Schaeffer (1837), Pachycoris rubrocinctus and P. fiavicinctus. A third species, T. mexicanus, also described by Herrich-Schaeffer (1837), has been considered a senior synonym of T. flavicinctus by some authors. Because color patterns vary considerably in this genus, several subspecific names persist for variously patterned specimens of T. rubrocinctus.Figs. 1-6. 1-3. Tiridates rubrocinctus rubrocinctus. 1.) Female abdomen, ventral aspect. 2.) Meso- and metapleuron. 3.) Head. 4-6. Agonosoma trivittata (Panzer). 4.) Female abdomen, ventral aspect. 5.) Meso- and metapleuron. 6.) Head. Dimensional lines equal 1.0 mm.This study was undertaken to characterize the genus and to clarify the status of included taxa. All measurements are given in millimeters.