Aristotelia accipiter, Cepeda, 2021

Aristotelia accipiter View in CoL sp. nov.

( Figs. 1-11 View Figures 1-7 View Figures 8-11 )

Diagnosis. Based on the male and female genitalia. The new species can be distinguished from other species in the genus by the subtriangular shape of the valva ( Figs. 3, 5 View Figures 1-7 ), and the spiny signum with large marginal thorns in the female genitalia ( Fig. 11 View Figures 8-11 ).

Description. Male. Head: Frons and vertex covered by whitish scales, occiput covered with elongate brown scales. Labial palpus slender, whitish, second segment with ventral brush of scales and three white bands; third segment strongly curved with scattered brown scales. Antennae with scape brown, flagellomeres with pale basal band. Thorax: Notum and tegulae covered with pale brown scales. Forewing length 6-7 mm (n = 8), brownish gray, with three narrow, white, parallel fascia angled obliquely outward from costa, and a fourth white fascia in subapical region angled inward; reddish brown along hind margin of wing. Hindwing dark uniform gray-brown; fringe dark yellow. Abdomen: Genitalia ( Figs. 3-7 View Figures 1-7 ) with uncus triangular, longer than wide, with prominent truncate apex. Gnathos elongate, curved, weakly hook-shaped in apical 0.2. Valva subtriangular, ca. 2.5 times longer than wide, attenuate throughout with acute apex, costa with a small subbasal lobe. Tegumen long and narrow. Vinculum slender. Saccus triangular, longer than wide, elongate. Phallus slender, sinuous, bulbous at base ( Fig. 6 View Figures 1-7 ); vesica with plate bearing small spines ( Fig. 7 View Figures 1-7 ).

Female. Head and thorax: Essentially as described for male. Abdomen: Genitalia ( Figs. 8-11 View Figures 8-11 ) with papilla analis simple, with a few setae. Apophysis posteriores 0.5 times length of apophysis anteriores. Segment 8 th (sterigma) weakly sclerotized ( Fig. 9 View Figures 8-11 ). Antrum short, moderately sclerotized. Ductus bursae elongate, narrow, lacking spiniform processes throughout. Corpus bursae ovoid, membranous, partially covered with small spiculues. Signum large, star-shaped, strongly sclerotized, spiny, with several (n = 13) large marginal thorns.

Host. Unknown.

Distribution. The new species is known only from the Province of Maipo ( Santiago Metropolitan Region). According to Morrone (2015), this distribution corresponds to the biogeographic sub-region of central Chile, extending from the Province of Coquimbo to the Province of Santiago.

Etymology. The Latin accipiter refers to the hawk genus distinguished by short, wide wings; a similar shape to the valva in this species.

Material examined. Holotype ♂, CHILE, Región Metropolitana de Santiago, Provincia de Maipo , El Escorial, 21 enero 2017, leg. D. E. Cepeda ( MEUC) . Paratypes: 4♂, 3♀, CHILE, Región Metropolitana de Santiago, Provincia de Maipo , El Escorial, 23 diciembre 2017, leg. D. E . Cepeda. Permanent slides n° 731 ♂, 739 ♀, 840 ♀, 844 ♂ ( MEUC) .