Pinaconota bifasciata (Saussure, 1862)

Leonid N. Anisyutkin, 2016, New and little known Epilamprinae (Dictyoptera: Blaberidae) from the collections of the Muséum d’histoire naturelle de Genève and the Zoological Institute RAS, Saint Petersburg. Part 2, Revue suisse de Zoologie 123 (1), pp. 139-152 : 150

Pinaconota bifasciata (Saussure, 1862)

Figs 71-84

Blatta bifasciata Saussure, 1862: 165 . ‒ Saussure, 1864: 98.

Phyllodromia bifasciata . ‒ Brunner von Wattenwyl, 1865: 94.

Blatta bifasciata . ‒ Walker, 1868: 87.

Epilampra bifasciata . ‒ Saussure, 1870: 84, pl. 2 fig. 44, 44A.

Pinaconota bifasciata . ‒ Saussure, 1895: 337.

Epilampra bifasciata . ‒ Kirby, 1904: 113.

Pinaconota bifasciata . ‒ Shelford, 1910: 5. ‒ Princis, 1958: 68. ‒ Princis, 1967: 655, 656. ‒ Roth, 1973: 3, 4. ‒ Roth, 1974: 290 -295, figs 1-23.

Material: Lectotype; MHNG; male; Brazil, “474 8 Brésil. ♂ M’ Sorvel”, “ Epilampra bifasciata , ♂ Sss.”, “ Lectotypus Blatta bifasciata Sauss. ♂ K. Princis 1970”, “ Pinaconota bifasciata (Sauss.) ”, genital complex in prep. 100815 /06.

Redescription of male (lectotype): The original description and description of Roth (1974) can be supplemented with the following details. Head ( Fig. 71 ) and pronotum ( Fig. 72 ) contrastingly coloured. Surfaces smooth and lustrous, only proximal third of tegmina with punctuation. Head about as long as wide ( Fig. 71 ); ocellar spots indistinct; facial part flat; distance between eyes about as long as eye length; distance between antennal sockets about twice scape length (0.8 mm); approximate length ratio of 3rd-5th segments of maxillary palps 1.4: 1.0: 1.4. Pronotum as in Fig. 72 . Tegmina and wings slightly abbreviated, reaching to abdominal apex. Tegmina with rounded apex; venation distinct; costal field triangular with obsolete venation; Sc thickened (well visible on ventral side of tegmen); R, M and CuA stems not separated basally; CuP distinct. Wings abbreviated and membranous. Fore tibiae not thickened distally. Anterior margin of fore femora armed type B, with 6 spines, including 1 apical one. Tibial spines well developed. Structure of hind tarsi: metatarsus about as long as or shorter than other tarsal segments combined (5th tarsal segments of hind tarsi broken off), with euplantula apical, about one fourth of metatarsus length; euplantulae of 2nd-4th segments large; metatarsus with 2 more or less equal short rows of spines along lower margin; one pair of “additional spines” bordering euplantulae from inside and outside. Only pretarsus of right fore leg present: claws symmetrical and simple; arolium large, about one half of claw length. Abdomen without visible glandular specializations. Anal plate (tergite X) widely rounded, with medial incision ( Figs 73, 74 ). Cerci short, with distinct segments ( Figs 73, 74 ). Paraprocts of blaberidtype ( Fig. 74 ). Hypandrium asymmetrical, caudally projected; styli cylindrical ( Figs 75, 76 ).

Genitalia ( Figs 76-84 ): Right phallomere (R+N): sclerite R1T with caudal part wide ( Figs 77, 78 , c.p.R1T); bristles present; R2 curved; R3 triangular, closely associated with R1T; R4 large, closely associated with small additional sclerite ( Figs 77, 78 , a.R4); R5 lobe-like, sclerotized apically. Sclerite L2D (L1) divided into basal and apical parts ( Figs 76, 79, 80 ), widened cranially; “apical sclerite” present ( Figs 76, 79, 80 , ap.scl.), strongly sclerotized along caudal margin, densely covered with recumbent bristles and not numerous large spines ( Figs 79, 80 , sp.). Large rectangular sclerite situated under caudal part of L2D ( Fig. 79 , scl.); fourth “chaeta-bearing areas” with large spines and bristles situated under sclerite L2D ( Fig. 79 , ch.a.). Sclerite L3 (L2d) with distinct basal subsclerite ( Fig. 81 , b.L3), “folded structure” absent, but a few bristles present ( Fig. 81 ); groove hge and fingerlike basal projection well developed ( Figs 82-84 , hge, b.pr.); apex of L3 with small membranous lobe ( Figs 82-84 , m.l.). Sclerite L4U (L3d) weakly sclerotized ( Fig. 76 ).

Measurements (in mm): Head length 3.2, head width 3.2; pronotum length 5.0, pronotum width 7.2; tegmen length 13.5, tegmen width 5.3.

Note: Roth (1974) erroneously stated that Saussure’s type of P. bifasciata is female, but in fact it is male.

Figures

Figs 71 - 84. Pinaconota bifasciata (Saussure, 1862), male, lectotype. (71) Facial part of head. (72) Pronotum, dorsal view. (73) Abdominal apex, dorsal view. (74) The same, ventral view. (75) Hypandrium, ventral view. (76) Hypandrium and genitalia, dorsal view. (77) Right phallomere, dorsal view. (78) The same, ventral view. (79) Caudal part of sclerite L 2 D and adjacent structures, ventral view. (80) Caudal part of sclerite L 2 D, dorsal view. (81) Sclerite L 3. (82 - 84) Apex of sclerite L 3. Dash lines show black maculae (71, 75). Dotted lines show yellowish maculae (71). Dotted areas show dark colour (72) or membranous parts (74 - 84). Abbreviations: a. R 4, ap. scl., b. L 2, b. L 3, b. pr., c. p. R 1 T, ch. a., hge, L 3, L 4 U, ml., R 2, R 3, R 4, R 5, scl. - see chapter “ abbreviation used in figures ”, for details see text. Scale bars 1 mm: a = 71, b = 72, c = 73, d = 74, e = 75, f = 76, g = 77, 78, h = 79, i = 80, j = 81, k = 82 - 84.