Acalyptris murex Diškus & Stonis, 2017

Stonis, Jonas R., Diškus, Arūnas, Remeikis, Andrius, Karsholt, Ole & Torres, Nixon Cumbicus, 2017, Illustrated review of the leaf-mining Nepticulidae of the central Andes (Peru and Bolivia), Zootaxa 4257 (1), pp. 1-70 : 58-60

publication ID	https://doi.org/ 10.5281/zenodo.556874
publication LSID	lsid:zoobank.org:pub:98E19676-EC03-4026-B4B6-39BEC10B5A05
DOI	https://doi.org/10.5281/zenodo.6036026
persistent identifier	https://treatment.plazi.org/id/90078570-FF9C-2A1F-FF07-5B618D67FA83
treatment provided by	Plazi
scientific name	Acalyptris murex Diškus & Stonis
status	sp. nov.

Treatment

44. Acalyptris murex Diškus & Stonis , sp. nov.

( Figs 2 View FIGURES 1 – 8 , 9 View FIGURES 9 – 11 , 25–28 View FIGURES 19 – 28 , 34 View FIGURE 34 , 97, 98 View FIGURES 97 – 98 , 108, 109 View FIGURES 108 – 109 , 116–120 View FIGURES 116 – 125 )

Type material. Holotype: ♂, BOLIVIA: Nor Yungas Province , Coroico, 16°11'49˝S, 67°43'07˝W, elevation 2030 m, mining larva on Collaea sp. 25.iv.2014, ex pupa v.2014, field card no. 5164, A. Diškus, genitalia slide no. AD 850♂ ( ZMUC) . Paratype: 1 ♀, same label data, genitalia slide no. AD851♀ (ZMUC).

Diagnosis. Belongs to A. peteni species group. The combination of a valva with median and basal widenings, unique shape of cornuti and carinae of the phallus, and unique vaginal sclerite of the female genitalia with five very long spines distinguishes A. murex sp. nov. from all other Acalytris species.

Male ( Fig. 34 View FIGURE 34 ). Forewing length about 2.6 mm; wingspan about 5.6 mm. Head: palpi yellowish cream; frontal tuft ferruginous; collar comprises of pale ferruginous piliform scales; scape yellowish cream; antenna shorter than half the length of forewing; flagellum with 29 segments, brown on upper side, yellow cream (stramineous) on underside. Thorax, tegula and forewing cream to yellowish cream with light blue iridescence; forewing with a dark brown pseudofascia and with numerous dark brown scales on apex; fringe cream with light blue iridescence; underside of forewing pale brownish grey, without spots or androconia. Hindwing and its cilia brownish cream on upper side and underside, without spots or androconia. Legs glossy, yellowish cream; forelegs and midlegs with some dark brown scales on upper side. Abdomen grey cream, glossy on upper side, golden cream on underside; anal tufts very short, cream.

Female. Similar to male.

Male genitalia ( Figs 97, 98 View FIGURES 97 – 98 ). Capsule longer (315 µm) than wide (200 µm). Vinculum very small but with very long and slender lateral lobes. Pseuduncus very slender. Uncus inverted V-shaped. Gnathos with small angular central plate, one large caudal process and wide lateral arms (see fig. 97). Valva 210–220 µm long, 40–45 µm wide, bulged medially and at the base; basal processes of valvae long and very slender. Phallus ( Fig. 98 View FIGURES 97 – 98 ) 350 µm long, 105–130 µm wide, with two wide lateral carinae, two closely juxtaposed ventral carinae, very large cathrema, and specific thickening (cornutus).

Female genitalia ( Figs 108, 109 View FIGURES 108 – 109 ). Total length about 655 µm. Anterior and posterior apophyses almost equal in length. Vestibulum wide, with unique spiny sclerite. Corpus bursae oval-shaped, 380 µm long, 190–140 µm wide, with a pair of signa reticulata ( Fig. 108 View FIGURES 108 – 109 ); pectinations comb-like and spine-like. Ductus spermathecae with weakly developed convolutions and small, plate-like sclerite. Abdominal apex truncated.

Bionomics ( Figs 116–120 View FIGURES 116 – 125 ). Larvae mine in leaves of Collaea speciosa (Loisel.) DC., Fabaceae ( Figs 116– 118 View FIGURES 116 – 125 ). Larvae pale greenish grey with bright green intestine and dark brown head, mine in April. Leaf-mine ( Figs 119, 120 View FIGURES 116 – 125 ) as a sinuous, gradually widening gallery; in the begining, slender part black-brown or brown frass fills whole width of the gallery, further frass deposited in a very wide central line with narrow unfilled areas. Larval exit slit on upper side of the leaf. Cocoon pale, yellowish beige; length 2.2 mm, maximum width 1.3 mm. Adults fly in May.

Distribution ( Figs 9 View FIGURES 9 – 11 ). This species occurs in the Bolivian Andes ( Bolivia: Nor Yungas Departamento) at altitudes about 2030 m ( Figs 25–28 View FIGURES 19 – 28 ).

Etymology. The species name is derived from Latin Murex (tropical sea snails possessing shells with long spines) in reference to the long spines of vaginal sclerite in the female genitalia.