Lucihormetica yasuniana Vidlička, 2019

Vidlička, Ľubomír, 2019, New genus and species of cockroaches from the tribe Brachycolini (Blattaria Blaberidae: Blaberinae) and redescription of the Hormetica strumosa, Zootaxa 4651 (1), pp. 155-172 : 162-166

Lucihormetica yasuniana Vidlička , sp. n.

http://zoobank.org/ 8BBE7FC5-0E28-4B74-9B07-6F47A1CA6335

Figs. 6 A–C, 7 A–G, 8 A–F

Type materials. Holotype ♂, Ecuador, Yasuni Scientific Station (Estación Científica Yasuní), Orellana (before 1998 Napo) Province , 8.XI. 1995, 250 m, leg. G. Onore (deposited in PUCE, Quito, Ecuador).

Description. Measurement [mm] as in table 2.

Male: Figs. 6 A–C, 7 A–G, 8 A–F. Head dark brown to black, with broad yellow spots over the antennal socket. Antennal sockets and proximal part of labrum yellow ( Fig. 6 B ). Compound eyes dark; intraocular distance large; ocelli not visible.Antennae short (but not preserved full length), reached at most half the body. Scapus, and meriston longer as wide, glossy; following 9–10 segments near square-shape, dark brown and glossy, nearly without setae; next 19–20 segments smaller, brown, dull, densely cover by small setae; following 5 segments small, yellow and at least 3 segments brown, dull.

Pronotum wider than its length, brownish-yellow, bordered with elevated narrow black strip; elevated border of pronotal disc black, central part brownish-red with two bean-shaped spots ( Fig. 6 A ).

Legs dark brown to black, glossy; trochanters and adjacent parts of coxae, and surrounding of genicular joints pale brown; tibiae short, armed with long and strong spines; arolia and pulvilli well-developed, yellow; claws simple and symmetrical. Anteroventral margin of front femur with a row of soft spines (only on distal half), and terminating in one larger spine (type C1).

Tegmina broad, coriaceous, brownish-yellow; left tegmen overlapped largely right one; venation very dens with number of cross-veins; along basal part of subcosta narrow black stripe, anal field separated by conspicuous claval furrow ( Fig. 6 A ). Membranous hind wings relatively short, greyish-brown, veins generally brown; venation plentiful with numerous cross-veins, mainly in remigium; remigium darker than anal field ( Fig. 6 C ); anal lobe folded at rest between CuP and 1A.

Abdomen dark brown to black, glossy; T2–T8 with yellowish band on lateral margins and pale band on distal margins; S3–S5 centrally with discreet yellowish spots ( Figs. 7 A, B ). Supra-annal plate symmetrical, posteriorly with a superficial V-shaped incision in the middle; central part transversally with pale strip. Cerci ±10-segmented, segments on bases with narrow pale-brown line; ventral side very densely haired, dorsal side plain ( Figs. 7 C, D, E ). Subgenital plate slightly asymmetrical; distally widely rounded; styli small, dark; pale plate around right stylus ( Fig. 7 F ) markedly bigger than left one ( Fig. 7 G ), pale border extend from right to left stylus ( Fig. 7 D ).

Genitalia ( Figs. 8 A–F).

Folds in the inner margin of membranous part of genital hook [L3’] inexpressive.

Preputial spines sparse, short.

Female. Unknown.

Etymology. The new species is named according to the type locality—NP Yasuni ( Ecuador).

Distribution. Ecuador (Sucumbios Province).

Differential diagnosis. The new species is closely related to L. amazonica . Lucihormetica yasuniana sp. n. is distinguished from L. amazonica by smaller body; tegmen markedly reaching over the body; dark coloration of tegmen is distinctly more simply; preputial spines on genitalia are more numerous and different arranged; the sclerotized part of genital hook is rectangular curved on inner side.

Remarks. From among thirteen members of the genus Lucihormetica , the males of four species have very shortened tegmina ( L. interna (Walker, 1868) , L. osunai (Ramirez Pérez, 1992) , L. subcincta and L. verrucosa ) and three others ( L. cerdai (Ramirez Pérez, 1992) , L. fenestrata Zompro & Fritzsche, 1999 and L. grossei Fritzsche, 2003 ) have the tegmina that do not reach the end of abdomen. The tegmina of species L. amazonica , L. saebrai (Rocha e Silva, 1987) and L. tapurucuara (Rocha e Silva, 1979) are probably similar as in previous three species, but their pictures were probably made after amputation of abdomen because of preparation of genitalia. The descrip- tions of these three species do not mention the tegmina characteristics. In species L. luckae and L. zomproi Fritzsche, 2008 tegmen reach the end of abdomen. Only in case of L. yasuniana sp. n. tegmen overreach the tip of abdomen.

Figures

FIGURE 6. Lucihormetica yasuniana Vidlička, sp. n. Holotype—habitus, ♂. A, B—habitus, dorsal (A) and ventral (B) view (without the tip of abdomen); C—left hind wing. Photos A & B taken by Roman Hergovits.

FIGURE 7. Lucihormetica yasuniana Vidlička, sp. n. Holotype—abdomen, ♂. A—dorsal view, B—ventral view; C—T8, T9 and supra-anal plate with cerci (dorsal view); D—subgenital plate (ventral view); E—right cercus (ventral view); F, G—left (F) and right (G) styli (ventral view).

FIGURE 8. Lucihormetica yasuniana Vidlička, sp. n. Holotype—genitalia, ♂. A, B—ventral view, sheathed hook (A) and protruded hook (B); C, D—preputial spines, dorsal (C) and ventral (D) view, on D with part of L2d-sclerite [L2' on via]; Ehook R2 [L3']; F—cleft sclerite L1 [R3' and R4'].