Chelicerca achilata 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

Chelicerca achilata Szumik, Pereyra & Juarez sp. nov.

Figs 1-6

Type material.

Holotype: male, Brazil: Rio de Janeiro, Nova Friburgo, Macaé de Cima, 22°22'30"S, 42°29'45"W, 14-I-2008, 1400 m, P. C. Grossi leg., Amadilha Luminosa, INPA.

Diagnosis.

Chelicerca achilata sp. nov. can be distinguished from other species of Chelicerca by the broader and elevate arch on inner margin of 10R, the Ep broad and clearly visible, fused to 10R; 10L also with a broad and elevated arch on inner margin, 10Lp1 with tips rounded, bilobed. LC1dp conical, well developed.

Description.

Male (holotype). Head, prothorax, legs and terminalia light brown; antennae, pterothorax and rest of the body brownish white. Total length 6.62. Head (Fig. 1 ) width/length = 0.90; OR = 0.58; Md with 1-1 incisor teeth and 2-1 molar teeth; Mm conspicuous; Sm quadrangular with anterior margin membranous (Fig. 2 ). Forewing length 5.76, hindwing length 4.61. Wing base union type B; wing venation: Sc, R1, Rs, Cu, and A conspicuous; Ma, Mp, and Cua diffuse, less conspicuous, clearly not reaching wing edge; cross-veins in forewing: R1-Rs: 3. Basitarsus of hind leg narrow (Fig. 3 ): length 0.26, width/length = 0.31; 1 rows of setae on retrolateral face, single row on anterolateral face, four rows on ventrobasal face (Fig. 3 ). Terminalia (Figs 4-6 ), 10Lp1 appears oblique in reference to 10L (Fig. 4 ), in outer lateral view is possible to observe the two acute tips (basal and apical position, Fig. 5 ), the apical tip is clear to observe also on ventral view. Inner edge of 10Rp1 with a broad and prominent arch (Fig. 4 ). Ep well sclerotized, without microtrichia, broad and clearly fused to 10R (Fig. 4 ). Hp with a few transversal keels, rounded, semicircular without any additional process (Fig. 6 ). LC2 shorter than LC1, longitudinal ratio of LC1/LC2 = 1.09, LC1dp conical with setae; LC1dp/LC1width = 1.67. Female. Unknown.

Etymology.

Achilata is a popular homemade ice-cream in Tucumán, and is also the nickname of Claudia’s cousin, to whom this species is dedicated.

Figures

Figures 1 - 6. Chelicerca achilata Szumik, Pereyra & Juarez, sp. nov. 1 head, dorsal view 2 Mm + Sm 3 basitarsus of hind right leg 4 terminalia, dorsal view 5 10 Rp 1 and 10 Lp 1, outer lateral view 6 terminalia, ventral view.