Megalostrata bruneri ( Bryant, 1936 )

Bonaldo, Alexandre B., Galán-Sanchez, M. Antonio & García, Fabián, 2024, Advances on the taxonomy of Megalostrata Karsch, 1880 (Araneae, Corinnidae, Corinninae), with descriptions of two new species, Zootaxa 5458 (4), pp. 495-523 : 509-510

Megalostrata bruneri ( Bryant, 1936)

Figs 14

Chemmis bruneri Bryant, 1936: 331 , pl. 23, fig. 9 (♀ holotype from Loma del Gato , Sierra del Cobre, Cuba, MCZ 20592 , examined by photographs).

Megalostrata bruneri ; Bonaldo 2000: 118 (by genus synonymy).

Diagnosis. Females of M. bruneri are similar to those of M. paludosa spec. nov. and M. monistica by the short, bulbous secondary spermathecae ( Figs 12A, B , 22C, E ). They differ from those of M. monistica by the straight posterior margin of the epigynal plate, without a median invagination (posterior margin of epigynal plate strongly invaginated in M. monistica , Fig. 12A ) and from those of M. paludosa spec. nov. by the small primary spermathecae (diameter similar to posterior atrium height), positioned anteriorly to the posterior atrium (primary spermathecae larger than the atrium height, positioned at the level of posterior atrium in M. paludosa spec. nov., Figs 22A , 23C ) ( Fig. 14C ).

Description. See Bryant (1936).

Distribution. Only known from the type locality ( Fig. 25 ).

Figures

FIGURE 12. Megalostrata monistica (Chamberlin, 1924): female, Nayarit, Mexico (CAS 9119037):A epigynum, ventral view; B same, dorsal view; C same, posterior view. Scale bars: 0.2 mm.

FIGURE 14. Megalostrata bruneri (Bryant, 1936), female holotype (MCZ): A dorso-lateral view; B abdomen, ventral view; C epigynum, ventral view. Scale bars: A 5 mm, B 1 mm, C 0.5 mm.

FIGURE 22. Megalostrata paludosa spec. nov.. A, B male holotype:A palp, ventral view; B palp, retrolateral view. C–E female paratype (MUSEUV 2796): C epigynum, ventral view; D same, posterior view; E same, dorsal view. Scale bars. 0.2 mm.

FIGURE 23. Megalostrata paludosa spec. nov.. A, B male holotype: A palp, ventral view; B palp, retrolateral view. C, D female paratype (MUSEUV 2796): C epigynum, ventral view; D same, dorsal view. Abbreviations: CO, copulatory opening; CRP, cymbial retrolateral basal process; E, embolus; FD, fertilization ducts; RTA, retrolateral tibial apophysis; S1, primary spermathecae; S2, secondary spermathecae; TP, tegular process. Scale bars. A, B 0.5 mm, C, D 0.2 mm

FIGURE 25. Known geographical distribution of Megalostrata species.