Isaloides

Teixeira, Renato Augusto & Barros, Bruno Augusto Reis, 2015, Taxonomic notes on the crab spider genera Stephanopoides and Isaloides (Araneae: Thomisidae: Stephanopinae), Zootaxa 3956 (2), pp. 281-287 : 284

Isaloides F. O. P.- Cambridge, 1900

Isaloides F. O. P.- Cambridge, 1900: 163 (Type species: Diaea puta O. Pickard-Cambridge, 1891 designed as Isaloides putus by F. O. P.- Cambridge 1900; Holotype female from Bugaba, Panama, deposited in BMNH, examined). Isaloides F. O. P.-Cambridge. Banks 1903: 343; Bryant 1940: 408; Jiménez 1992: 53.

Diagnosis. Within Stephanopinae, Isaloides can be recognized by the carapace that is longer than wide and flattened, by the abdomen that is longer than wide and shows four or five pairs of the yellow papules. The male palp has neither retrolateral nor ventral tibial apophyses ( Fig. 10 , in contrast to Stephanopoides ). Furthermore, in Isaloides the embolus is thin and curly and longer than in Stephanopoides . The epigynum differs from all other Neotropical Stephanopinae by the wide atrium and the small spermathecae ( Figs 11–13 ; see other details in Jiménez 1992).

Note. The holotype of Isaloides putus was examined to corroborate the transfer of Parastephanops echinatus to this genus. Other specimens of Isaloides were borrowed from AMNH, they belong to different species that should be described in a forthcoming revision of the genus.

Figures

FIGURES 6 – 13. Isaloides echinatus (Banks, 1914) comb. nov. 6 male habitus; 7 female habitus; 8 female prosoma, frontal view; 9 – 10 male palp, ventral view (9 photograph, 10 outlines of ventral view); 11 – 13 epigynum (11 ventral view, 12 outlines of ventral view, 13 outlines of dorsal view). Scales 6 – 8: 0.50 mm. Scales 9 – 13: 0.25 mm. White arrow indicates the papules on the dorsal of the abdomen. Black arrow indicates the copulatory openings. Abbreviations: a—atrium, cd—copulatory ducts, fd—fertilization ducts, ocd—outline of copulatory ducts, os—outline of the spermathecae, s—spermathecae.