Xestoblatta surinamensis Bruijning, 1959

Evangelista, Dominic A., Sylvain, Erdine, Mendoza, Ciara Mae & Guzman, Kimberly, 2016, New and enigmatic cockroaches (Dictyoptera: Blattodea) of Guyana, Journal of Natural History 50, pp. 2249-2276 : 2264-2265

Xestoblatta surinamensis Bruijning, 1959

( Figure 10 )

6 adult males, 16 adult females, 1 juvenile. Voucher numbers: DEIWO0197 , DEIWO0415 , DEIWO0441 , DEIWO0480 , DEIWO0457 , DEIWO0354 , DEIWO0497 , DEIWO0503 , DEIWO0382 , DEIWO0420 , DEIWO0184 , DEIWO0373 , DEIWO0442 , DEIWO0504 , DEIWO0305 , DEIWO0229 , DEIWO0292 , DEIWO0306 , DEIWO0419 , DEIWO0445 , DEIWO0449 , DEIWO0450 , DEIWO0458 . Collection locality: Turtle Mountain , Iwokrama River Lodge and Atta lodge in Iwokrama Forest, Guyana . GPS: 4°39 ” N, 58°41 ʹ W; 4°43 ʹ N, 58°43 ʹ W; 4°14 ʹ N, 58°54 ʹ W. Collection dates: 20 – 29 December 2014. Collectors: D. Evangelista, M. Davis, M. Johnny, M. Carter, O. Ambrose.

Morphological identification

We identified these specimens as Xestoblatta Hebard, 1916 through the fore leg anteroventral margin spination (spines all large), modified styles and presence of abdominal tergal gland. We then further associated these species with Xestoblatta surinamensis Bruijning, 1959 by the shape of the right style being clubbed, and the modified shape of dorsal abdominal tergum 7.

Collection/ecological information

This species was mostly collected in pitfall traps baited with beer. It was fairly commonly caught by hand at night as well. This is the first record of this species in Guyana.

Known geographical distribution

Guyana (Iwokrama forest; new record), Suriname, French Guiana, and Brazil (Para)

Figures

Figure 10. Xestoblatta surinamensis Bruijning, 1959. Adult male. (a) Dorsal body. (b) Ventral body. (c) Terminal terga, showing supra-anal plate and tergal gland. Voucher number: DEIWO0354.