Aphractus acuminatus Brunner von Wattenwyl,, 1895

Vera, Alejandro & Prelo, Paula, 2022, Garypus sanasai Lin, Huang & Chang 2022, sp. nov., Zoological Studies 61 (37), pp. 1-9 : 3-8

publication ID	https://doi.org/10.6620/ZS.2022.61-37
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scientific name	Aphractus acuminatus Brunner von Wattenwyl,
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Aphractus acuminatus Brunner von Wattenwyl, View in CoL

1895 ( Figs. 1A View Fig , 2A–C View Fig , 4A–B View Fig , 5A–B View Fig and 6A View Fig )

Male: Tergum X depressed in the midline. Epiproct as a prominent triangular sheet, with acute apex; 1.5 times as long as tergum X ( Fig. 2B View Fig ). Cercus cylindrical, slender, extended, sometimes with the distal half slightly dorsal, length 2.5–3.0 mm; apex rounded, with small subapical medial spine ( Fig. 2A, B and C View Fig ). Paraproct with elongated trapezoidal dorsal lobe; ventral lobe small, as sclerotized tubercle. Subgenital plate elongated, posterior margin narrow, triangular emarginated; style cylindrical, elongated, 0.3 as long as cercus, length equal or greater to the distance between them ( Fig. 2A View Fig ). Epiphallus with titillator sclerite (TS) apodemes rounded; middle keel ensiform, base with triangle not sclerotized, TS as long as middle keel ( Fig. 4A View Fig ). Articulated titillatory processes elongated, three times as long as the width of sclerite TS; apex acute, dorsal curved, with abundant subapical spines ( Fig. 4B View Fig ).

Female: Ovipositor length 12–15 mm; dorsal valvulae toothed on the first third; ventral valvulae with small basal process ( Fig. 5B View Fig ). Subgenital plate transverse, posterior margin truncated, with two marginal processes rounded and folded forward ( Fig. 5A View Fig ). Sternites II–VI with two parallel and rectangular plates, sternite VII with divergent plates (“V”). Genital chamber with spermathecal pore in its posterior margin. Spermatheca with spherical capsule, diameter 1.5–3 mm; spermathecal duct wavy ( Fig. 6A View Fig ), length 2.47–3.64 mm.

Polycleptis scutellifera Karsch, 1891 ( Figs. 1B View Fig , 2D–F View Fig , 4C–D View Fig , 5C–D View Fig and 6B View Fig )

Male: Tergum X depressed. Epiproct posterior margin rounded and dorsally folded; 0.3 as long as tergum X ( Fig. 2E View Fig ). Cercus conical, wide, length 2.3–2.5 mm; strongly curved towards the middle line with its apex sclerotized in a conical spine ( Fig. 2D, E and F View Fig ). Paraproct dorsal lobe tongue-shaped, with round apex; ventral lobe small, as a sclerotized tubercle. Subgenital plate transverse, posterior margin wide, broadly emarginated; style absent ( Fig. 2D View Fig ). Epiphallus with titillator sclerites (TS) apodemes truncated; middle keel not sclerotized; middle keel smaller than TS length ( Fig. 4C View Fig ). Articulated titillatory processes smaller than the width of TS; apex rounded, laterally curved, with subapical spines rings ( Fig. 4D View Fig ).

Female: Ovipositor length 18–21 mm; dorsal valvulae with small tooth on the second third; ventral valvulae with prominent basal process ( Fig. 5D View Fig ). Subgenital plate transverse, posterior margin with medial triangle and two lateral tubercles ( Fig. 5C View Fig ). Sternites II–VII with a transverse and rectangular plate, sternite VII with two posterior tubercles. Genital chamber with spermathecal pore in its anterior fold. Spermatheca with spherical capsule, diameter 1.8–2.5 mm; spermathecal duct straight ( Fig. 6B View Fig ), length 1.88–2.17 mm.

Paraphractus abbreviatus Brunner von Wattenwyl, 1895 View in CoL ( Figs. 1C View Fig , 2J–L View Fig , 3A–B View Fig , 4G–H View Fig 5E–F View Fig and 6C View Fig )

Male: Tergum X convex. Epiproct posterior margin rounded or acute, as long as tergum X ( Fig. 2K View Fig ). Cercus cylindrical, apex laterally flat, with dorsal apical spine, length 1.5–2.0 mm ( Figs. 2J–L View Fig , 3B View Fig ). Paraproct dorsal lobe with triangular-tongue shape; ventral lobe as a prominent cylindrical process ( Fig. 3A, B View Fig ). Subgenital plate elongated, posterior margin narrow, triangular emarginated; style small, cylindrical, length equal to the distance between them ( Fig. 2J View Fig ). Epiphallus with TS apodemes truncated; middle keel not sclerotized, with sclerotized scale-like microstructures; middle keel smaller than TS length ( Fig. 4G View Fig ). Articulated titillatory processes smaller than width of TS; apex acute, dorsal curved, with few dorsal subapical spines ( Fig. 4H View Fig ).

Female: Ovipositor length 8–11 mm; dorsal valvulae not toothed ( Fig. 5F View Fig ); ventral valvulae with small basal process. Subgenital plate transverse, trapezoidal, divided in two obvious sclerites, posterior margin with U-shape emargination and prominent vertices; between them the margin of the ventral valvulae fits ( Fig. 5E View Fig ). Sternites II–VII not sclerotized. Genital chamber with spermathecal pore in its posterior margin. Spermatheca with spherical capsule, diameter 1.3–2.0 mm; spermathecal duct small ( Fig. 6C View Fig ), straight, length 0.16–0.58 mm.

Polycleptidella chilensis Beier, 1962 View in CoL ( Figs. 1D View Fig , 2G–I View Fig , 4E–F View Fig , 5G–H View Fig and 6D View Fig )

Male: Tergum X convex. Epiproct with posterior margin truncated or bilobed, as long as tergum X ( Fig. 2H View Fig ). Cercus cylindrical, lightly dorsally curved, apex with small subapical medial spine length 1.3–1.8 mm ( Figs. 2J–L View Fig , 3B View Fig ). Paraproct with dorsal lobe thick rectangular; ventral lobe as small tubercle. Subgenital plate elongate, posterior margin narrow, triangular emarginated or truncated; style small, length equal to the distance between them ( Fig. 2G View Fig ). Epiphallus with TS apodemes rounded; middle keel sclerotized, smooth; middle keel smaller than TS length ( Fig. 4E View Fig ). Articulated titillatory processes smaller than width of TS; apex acute, dorsally curved, without subapical spines ( Fig. 4F View Fig ).

Female: Ovipositor length 8–12 mm; dorsal valvulae not toothed ( Fig. 5H View Fig ); ventral valvulae with small basal process. Subgenital plate transverse, trapezoidal, posterior margin with quadrangular emargination, and two digitiform processes, between them the margin of the ventral valvulae fits ( Fig. 5G View Fig ). Sternites II–VII not sclerotized. Genital chamber with spermathecal pore in the middle. Spermatheca with oval capsule, diameter 1.8–2.5 mm; spermathecal duct small ( Fig. 6D View Fig ), straight, length 1.2–1.47 mm.

Key for Aphractini View in CoL genera based on abdominal terminalia

1. Tergum X with prominent epiproct in triangular sheet. Male with cylindrical cercus, extended, rounded apex, with small subapical spine; long articulated titillatory processes (larger than the width of TS); style long, equal or greater to the distance between them. Female subgenital plate with marginal processes rounded and folded forward ........................................... Aphractus acuminatus View in CoL

- Tergum X without prominent epiproct in triangular sheet. Male with cylindrical or conical cercus, curved differently, apex different than above; short titillatory articulated processes (smaller than the width of TS); style smaller than distance between them. Female subgenital plate without marginal processes or present but not folded ............................................................................. 2

2. Medially curved cercus with acute large spine-shaped apex. Male subgenital plate without style; articulated titillatory processes with round apex and subapical spine rings. Female with prominent basal process in ventral valve; ovipositor more than seven times the length of the subgenital plate ..... Polycleptis View in CoL ssp.

- Cercus lightly dorsally curved, with small apical spine. Male subgenital plate with digitiform styles; articulated titillatory processes with acute apex. Female without prominent basal process in ventral valve; ovipositor less than seven times the length of the subgenital plate ..................................................... 3

3. Male epiproct rounded or acute; cercus apex laterally flat, with dorsal apical spine; paraproct ventral lobule as a prominent cylindrical process; articulated titillatory processes with few dorsal subapical spines. Female subgenital plate with divergent U-shape emargination in its posterior margin ............................... ............................................................. Paraphractus abbreviatus View in CoL

- Male epiproct truncated; cylindric cercus apex, with small medial apical spine; paraproct ventral lobule small; articulated titillatory processes without subapical spines. Female subgenital plate with quadrangular emargination in its posterior margin, and with two digitiform processes .............................. Polycleptidella chilensis View in CoL