Trilacuna loebli Grismado & Piacentini, 2014

Tong, Yanfeng, Li, Shuqiang & Bian, Dongju, 2020, Taxonomic studies on the genus Trilacuna (Araneae, Oonopidae) from Myanmar, ZooKeys 960, pp. 39-62 : 39

Trilacuna loebli Grismado & Piacentini, 2014 Figs 10 , 15G , 15H

Trilacuna loebli Grismado & Piacentini, in Grismado et al. 2014: 44, fig. 35A-I

Material examined.

1♀, Myanmar, Kachin State, Putao, roadside between Wasadum and Ziradum; 27°32.305'N, 97°07.537'E; elevation ca 980 m; 12.XII.2016; Wu J. leg. (IZCAS AR-25156).

Diagnosis.

Females of this species can be distinguished from other congeners by the semicircular plate of the epigastric area and the worm-shaped globular structure of the endogyne (Fig. 15G, H ).

Description.

See Grismado et al. 2014.

Distribution.

India (Assam); Myanmar.

Variation.

The specimens from Myanmar have a reticulate carapace and a nearly straight posterior eye row in dorsal view (Fig. 10D ). By contrast, the specimens from India have a granulate carapace, and the posterior eye row is slightly recurved in dorsal view ( Grismado et al. 2014: figs 35H, I).

Figures

Figure 10. Trilacuna loebli, female (IZCAS AR- 25156) A-C habitus in dorsal, ventral, and lateral views D-F, H prosoma in dorsal, ventral, lateral, and anterior views G abdomen in ventral view. Abbreviations: boc = booklung covers; cmp = clypeus median projection; esb = elevated seta base; ldi = labium deep incision; sep = semicircular plate. Scale bars: 0.4 mm.

Figure 15. Trilacuna spp., female copulatory organ A, B T. besucheti C, D T. changzi sp. nov. E, F T. hponkanrazi sp. nov. G, H T. loebli I, J T. zhigangi sp. nov. A, C, E, G, I ventral view B, D, F, H, J dorsal view. Abbreviations: ap = apodeme; as = anterior sclerite; db = darkened band; glo = globular structure; psp = posterior spiracle; sep = semicircular plate; tba = transverse bars; tp = triangular plate; tsc = transverse sclerite. Scales: 0.2 mm.