Stigmella polylepiella Diškus & Stonis, 2016

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 : 28

publication ID

https://doi.org/ 10.5281/zenodo.557156

publication LSID

lsid:zoobank.org:pub:98E19676-EC03-4026-B4B6-39BEC10B5A05

DOI

https://doi.org/10.5281/zenodo.6051913

persistent identifier

https://treatment.plazi.org/id/DA3B878D-7222-FFDE-FF12-62FBFF12F851

treatment provided by

Plazi

scientific name

Stigmella polylepiella Diškus & Stonis, 2016
status

 

13. Stigmella polylepiella Diškus & Stonis, 2016 View in CoL

( Figs 2 View FIGURES 1 – 8 , 9, 11 View FIGURES 9 – 11 , 13, 15 View FIGURES 12 – 18 , 32 View FIGURE 32 , 37 View FIGURE 37 , 121–124 View FIGURES 116 – 125 )

Stigmella polylepiella Diškus & Stonis, in Stonis et al. 2016e: 86 View in CoL –90, figs 7–26.

Material examined. 2 ♂ (holotype and paratype), PERU, 60 km NW of Cuzco, Ollantaytambo , 13°15'31"S, 72°15'54"W, elevation about 2850 m, mining larvae on Polylepis racemosa Ruiz & Pav. , 21.x.2008, field card no. 4948, A. Diškus, genitalia slide nos AD739 (holotype), AD741 (paratype) ( ZMUC). GoogleMaps

Diagnosis. The combination of the densely speckled forewing with some golden gloss and purple iridescence, closely juxtaposed processes of gnathos, three-lobed uncus, and unique set of cornuti in the phallus distinguishes S. polylepiella from all other Stigmella species; the host-plant Polylepis racemosa (Rosaceae) also makes this species distinctive.

Male ( Fig. 32 View FIGURE 32 ). Described in Stonis et al. 2016e: 86, figs 14–17. Forewing length about 2.6 mm; wingspan 5.7–5.8 mm.

Female. Unknown.

Male genitalia. Illustrated in Stonis et al. 2016e: figs 22–26.

Bionomics ( Figs 121–124 View FIGURES 116 – 125 ). Larvae mine in leaves in October. Host-plant: Polylepis racemosa Ruiz & Pav. (Rosaceae) . Egg beige cream, mat (lustreless), oval-shaped, flattened dorso-ventrally, attached (not glued) on the leaf under side. Leaf-mine starts as a narrow gallery filled with black frass; later it develops abruptly to a large blotch with frass irregularly scattered but most of it remains accumulated in basal part of the blotch ( Fig. 121 View FIGURES 116 – 125 ). Larva spins its cocoon inside the mine; the mine swells and becomes blisterlike at this stage ( Fig. 124 View FIGURES 116 – 125 ). Cocoon purplish brown to purplish dark brown; shape of the cocoon unusual, narrow; length 2.0– 2.4 mm, maximal width 0.8–0.83 mm ( Fig. 123 View FIGURES 116 – 125 ). Exit slit on upper side of the leaf. Using our ‘Formula of Evaluation of Abundance and Occurrence of Leaf-miners’ (see Diškus, Stonis 2012: 52–54), Stigmella polylepiella is extremely abundant in the type locality: a mass mining of the new species were observed (sometimes with a few leaf-mines on a single leaf); more than 300 leaf-mines with larvae were collected at a single site in Ollantaytambo, Peru ( Figs 13, 15 View FIGURES 12 – 18 ).

Distribution ( Figs 9 View FIGURES 9 – 11 ,). This species occurs in the Andes ( Peru: NW of Cuzco) at altitude about 2850 m ( Fig. 11 View FIGURES 9 – 11 ).

ZMUC

Zoological Museum, University of Copenhagen

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Nepticulidae

Genus

Stigmella

Loc

Stigmella polylepiella Diškus & Stonis, 2016

Stonis, Jonas R., Diškus, Arūnas, Remeikis, Andrius, Karsholt, Ole & Torres, Nixon Cumbicus 2017
2017
Loc

Stigmella polylepiella Diškus & Stonis, in Stonis et al. 2016e : 86

Stonis 2016: 86
2016
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