Aristotelia accipiter, Cepeda, 2021

Cepeda, Danilo E., 2021, A new species of Aristotelia Hübner, 1825 (Lepidoptera: Gelechiidae: Anomologinae) from Chile, Revista Chilena de Entomología (Rev. Chil. Entomol.) 47 (3), pp. 619-624 : 620-623

Aristotelia accipiter sp. nov.

( Figs. 1-11 )

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 ), and the spiny signum with large marginal thorns in the female genitalia ( Fig. 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 ) 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 ); vesica with plate bearing small spines ( Fig. 7 ).

Female. Head and thorax: Essentially as described for male. Abdomen: Genitalia ( Figs. 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 ). 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) .

Figures

Figures 1-7. Aristotelia accipiter sp. nov. 1. Forewing. 2. Palpus. Scale: 1.0 mm. 3. Male genitalia with phallus removed. 4. Uncus and gnathos. 5. Valva. 6. Phallus. Scale: 0.25 mm. / Aristotelia accipiter sp. nov. 1. Ala anterior. 2. Palpus. Escala: 1,0 mm. 3. Genitalia macho sin phallus 4. Uncus y gnathos. 5. Valva. 6. Phallus. Escala: 0,25 mm.

Figures 8-11. Aristotelia accipiter sp. nov. 7. Vesica showing spines. 8. Female genitalia. 9. Sterigma and apophyses. 10. Corpus bursae 11. Signum. Scale: 0.25 mm. / Aristotelia accipiter sp. nov. 7. Vesica con espinas.8. Genitalia hembra.9. Sterigma y apophyses.10. Corpus bursae 11. Signum.Escala:0,25 mm.