Embolyntha oriximina Szumik, Pereyra & Juarez, 2022

Szumik, Claudia, Pereyra, Veronica, Szumik, Victoria E. Goloboff, Costa-Pinto, Paula Jessica & Juarez, Maria Laura, 2022, Embioptera (Insecta) from Brazil: New species and a taxonomic update, ZooKeys 1088, pp. 129-171 : 129

Embolyntha oriximina Szumik, Pereyra & Juarez sp. nov.

Figs 19-24

Type material.

Holotype: male, Brazil: Pará, Oriximiná, Rio Trombetas, Alcoa min., 16-X-1991, J. A. Rafael leg., INPA.

Diagnosis.

Embolyntha oriximina sp. nov. can be distinguished from the other species of the genus by the shape of LC1dp semispherical instead of conical ( E. brasiliensis ) or domed ( E. guyana ), absence of medial bladder on hind basitarsus, present in the other species.

Description.

Male (holotype). General coloration brownish white with head, first antennomer, and fore tarsi brown, prothorax light brown and cerci whitish. Total length 4.00. Head (Fig. 19 ) width/length = 0.83; OR = 0.27; anterior margin of the clypeus straight; epistomal sulcus discontinuous; ecdysial suture as a less pigmented line quite diffuse; postocular suture as two small notches (Fig. 19 ); Md with 3-2 incisor teeth and 1-1 molar teeth; Mm narrow but conspicuous; Sm rectangular with anterior margin diffuse, base narrow, and surface flat (Fig. 20 ). Forewing (Fig. 21 ) length 3.82, hindwing length 3.35; wing base union type A; wing venation: Sc, R1, Rs, Ma, Ma1, Cu, and A conspicuous; Ma2 conspicuous only on the basal 1/3, Mp conspicuous only on the basal half and Cua diffuse; Ma1, Mp, and Cua clearly not reaching wing edge (Fig. 21 ); cross-veins in forewing: R1-Rs: 3, Rs-Ma1: 1-2; Ma-Mp: 2; Ma2-Mp: 0-1. Basitarsus of hind leg broad (Fig. 22 ): length 0.23, width/length = 0.39; one row of setae on retrolateral face, three rows of setae on anterolateral face, two rows of setae on ventrobasal face; medial bladder absent (Fig. 22 ). Terminalia (Figs 23 , 24 ), anterior margin of 10L concave, inner basal angle of 10L excavate; 10Lp1 not bifid, acute, curved with longitudinal keels (Fig. 23 ); 10Rp1 bifid, on dorsal view as a broad bar and on ventral view the unsclerotized dome is observed; basal membranous area on 10R quite small, 10Rp2 broad with longitudinal keels. Ep diffuse, not well sclerotized, without microtrichia. Hp with longitudinal keels (Fig. 24 ), Lpp as Fig. 24 . LC2 longer than LC1, longitudinal ratio of LC1/LC2 = 0.80, LC1dp as Fig. 21 ; LC1dp/LC1width = 2.14, LC1dp 2 × longer than the width of LC1. Female. Unknown.

Etymology.

The specific name is an apposition and refers to the type locality Oriximiná.

Additional records.

Brazil • Paratype: 1 male, Pará, Oriximiná, Rio Trombetas, CDC, 26-IV-1981, J.A. Rafael leg., INPA; Paratype: 1 male, Amazonas, Manaus, Rod. AM-010, km 26, Reserva Ducke, IX-2001, J.F. Vidal leg., arm. Malaise, mata, INPA; 2 males, Pará, C. Araguaia, 19-31-I-1983, J.A. Rafael leg., INPA; 1 male, Tocantins, Xambioá, Rio Araguaia, C.D.C, 3-XI-1982, J.A. Rafael leg., INPA; 2 males, Amazonas, Rio Nhamundá, Cuipiranga, 1°53'58"S, 57°02'59"W 20-23-V-2008, JA Rafael and team leg., arm CDC, INPA.

Figures

Figures 19 - 24. Embolyntha oriximina Szumik, Pereyra & Juarez, sp. nov. 19 head, dorsal view 20 Mm + Sm 21 right forewing 22 basitarsus of hind right leg 23 terminalia, dorsal view 24 terminalia, ventral view.