Dinelytron agrion Westwood, 1859: 6
Review of the genus Dinelytron Gray (Prisopodidae: Prisopodinae: Prisopodini), with a phylogenetic analysis of the genera of the Prisopodini, including the description of a new genus
Heleodoro, Raphael Aquino
Rafael, Jose Albertino
Zoologischer Anzeiger
2020
2020-03-31
285
37
80
Westwood, 1859
Westwood
1859
[145,490,1705,1726]
Insecta
Prisopodidae
Dinelytron
Animalia
Phasmida
6
43
Arthropoda
species
agrion
Dinelytron agrion Westwood, 1859: 6; Kirby 1904: 408(commentaries on holotype); Redtenbacher 1906: 150(redescription); Rafael & Heleodoro, 2017(Brazilian catalog); Brock et al. 2019(world catalog).
Examined material. Holotype _( Fig. 4A) (examined by photo): “BM [ British Museum], agrion, westw. [ood], Vila Nova[ Amazonas, Tapajosriver], Bates[collector], Dinelytron? Agrion, Westw., Amazon, Villa Nova” ( NHM). Ordinary material: “ Brasil, Manaus, Res. Ducke, 01.xii.2013, E. Aluim col.” (1 _ INPA).
Description of genitalia( _). Mainly membranous, with dorsal and ventral lobe continuously connected. Dorsal lobe having small rigid spiny sensilla; left, median and right posterior processes conspicuously present; with conspicuous sclerotization, heavily pigmented at left median margin ( Fig. 7A, C, E) Median posterior process with several small spikes ( Fig. 7E). Dorsal left sclerite slender, tubuliform, slightly curved; completely internal and close to dorsal-most wall of the genitalia; cleft between ducts conspicuous ( Fig. 7A). Basal pouch bifurcated, resembling a “U”, pointed latero-posteriorly, external to genitalia ( Fig. 7A, B). Sclerotized tube of ejaculatory duct present, with triangular base, positioned next to dorsal left sclerite, seeming connected ( Fig. 7C). Internal sclerite present, “C” shaped, positioned under basal pouch ( Fig. 7D). Ventral lobe with lower and upper lobule, having several small scattered sensilla. Having small bifurcated digitiform projection medially at upper lobule. Holotypecondition. Mid left and right posterior legs missing. Right posterior wing basally broken in anal area.
Geographical records. Brazil, Amazonas: Manaus.
Remarks. Westwood (1859)described this species uncertain of its placement in Dinelytron. Kirby (1904)had the same doubt when examining the holotype, but confirmed that D. agrionwas related to Prisopodidae. As our results demonstrate, this species belongs without a doubt to Paraprisopodini, due to the short tegmina and convex venter. Furthermore, the male genitalia do not fit in the pattern of any Prisopodinigenus. Despite all these evidences, this species is not going tobe transferred to another tribe or genus in the present work to respect the unpublished work of Oskar Conle (pers. comm., unpublished results), whom reached this conclusion previously. Thus, in the present work, Di. agrionis still treated as Dinelytronand to highlight this decision the name of the species is displayed between quotation marks in the phylogeny results. This is the first time the genitalia of this species are described.
2575928460
NHM
Bates
British Museum
Vila Nova
Vila Nova
6
43
1
Amazonas
holotype