Stigmella andina ( Meyrick, 1915 )

Stonis, Jonas R., Diškus, Arūnas, Remeikis, Andrius, Gerulaitis, Virginijus & Karsholt, Ole, 2016, Leaf-mining Nepticulidae (Lepidoptera) from record high altitudes: documenting an entire new fauna in the Andean páramo and puna, Zootaxa 4181 (1), pp. 1-94 : 67-68

publication ID

https://doi.org/ 10.11646/zootaxa.4181.1.1

publication LSID

lsid:zoobank.org:pub:639B9F0E-4E0C-4859-9A32-093511BEEFB8

DOI

https://doi.org/10.5281/zenodo.6075924

persistent identifier

https://treatment.plazi.org/id/03E487C7-FFF6-D221-FF46-2536F555FEBE

treatment provided by

Plazi

scientific name

Stigmella andina ( Meyrick, 1915 )
status

 

Stigmella andina ( Meyrick, 1915) View in CoL

( Figs 18 View FIGURES 18 – 19 , 27 View FIGURE 27 , 186–190 View FIGURES 186 – 190 )

Nepticula andina Meyrick, 1915: 255 View in CoL , 256.

Stigmella andina (Meyrick) View in CoL ; in Davis, 1984: 18.

Stigmella andina ( Meyrick, 1915) View in CoL , in Puplesis & Robinson 2000: 24, figs 14, 88, 89, 209.

Material examined. 1 Ƌ (lectotype, designated in Puplesis & Robinson 2000), PERU, La Oroya, 12200 ft [3720 m], vii.1914, Parish, genitalia slide no. 20612 ( BMNH) ; 13 Ƌ, 6 ♀ (paralectotypes), same labael data as lectotype (genitalia slide no. 28841 (BMNH).

Diagnosis. The pale, ochreous cream or yellowish cream, male forewing (in females with purple-brown apical apex), wide, rather square valva with small, curved apical process together with 10 very large horn-like cornuti in the male genitalia distinguish this species from all other Stigmella .

Male ( Fig. 187 View FIGURES 186 – 190 ). Forewing length: 2.4–2.7 mm; wingspan: 5.2–5.9 mm. Head: palpi cream; frontal tuft cream or ochreous cream to dull ochre; collar yellowish cream, indistinctive; scape cream to yellowish cream; antenna longer thank half the length of forewing; flagellum with about 34 segments, pale brown. Thorax and tegula cream with yellow-ochre tints. Forewing glossy, yellowish cream with a brassy tint (without dark scales at apex as in females but sometimes with white lustre at apex); fringe whitish cream to ochreous cream; underside of forewing pale brown, without spots. Hindwing and its fringe cream on upper side and underside, without spots or androconia. Legs pale ochreous cream to cream. Abdomen greyish brown to ochreous brown on upper side and underside, genital segments cream, distinctly contrasting in colour with rest of abdomen.

Female ( Fig. 186 View FIGURES 186 – 190 ). Flagellum with about 30 segments. Apical one-quarter to one-fifth of forewing entirely covered with purple-brown scales, some overlapping on cilia. Abdomen ochreous cream to pale ochre. Ovipositor slender, well visible at end of abdomen. Otherwise as in male.

Male genitalia ( Figs 188–190 View FIGURES 186 – 190 ). Capsule 370 µm long. Uncus relatively large, well-sclerotized, with four distinct caudal papillae. Tegumen with shallow caudal concavity. Gnathos with well-developed central plate and two long posterior processes; lateral arms of gnathos narrow in lateral view. Valva 208 µm, wide, with short, bent apical process, which may not be very evident in lateral view; transtilla with wide transverse bar but without sublateral processes, rounded at corners. Vinculum with pointed triangular lateral lobes. Phallus ( Fig. 190 View FIGURES 186 – 190 ) 240 µm long; vesica with about 10 very large horn-like cornuti.

Female genitalia (illustrated in Puplesis & Robinson 2000: fig. 209). Total length about 1180 µm. Apophyses posteriores long (about 370 µm) and very wide, widely curved anteriorly. Apophyses anteriores slender, as long as apophyses posteriores, curved slightly inwards anteriorly. Vestibulum without sclerites. Corpus bursae with very wide and strongly folded part and larger, widely oval basal part without distinct pectinations or signa. Accessory sac wide but short; ductus spermathecae slender and slightly sinuous, without convolutions (probably with a small sclerite but spermathecae is broken in slide no. 28841 BMNH therefore sclerite is not visible).

Bionomics. Adults fly in July. Otherwise biology unknown.

Distribution ( Figs 18 View FIGURES 18 – 19 , 27 View FIGURE 27 ). This species occurs on the Altiplano in the Peruvian Andes ( Peru: Yauli Departamento) at altitudes about 3720 m.

Remarks. According to the original description of this species ( Meyrick, 1915), sexual dimorphism is characteristic; similar case of outstanding sexual dimorphism were repeatedly discovered by us in some other, hitherto undescribed species of the Andean Stigmella (Stonis et al., in prep.). Earlier doubts about so strongly differring male and females (can such males and females belong to the same species or represent two different species) and the recommendation that the association of S. andina males and females should be treated with caution ( Puplesis & Robinson 2000), are now rejected.

Etymology. The species name given by E. Meyrick is derived from the name of the world’s longest continental mountain range (the Andes) and in reference to the distribution of the species in the high Peruvian Andes.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Nepticulidae

Genus

Stigmella

Loc

Stigmella andina ( Meyrick, 1915 )

Stonis, Jonas R., Diškus, Arūnas, Remeikis, Andrius, Gerulaitis, Virginijus & Karsholt, Ole 2016
2016
Loc

Stigmella andina (

Puplesis 2000: 24
2000
Loc

Stigmella andina

Davis 1984: 18
1984
Loc

Nepticula andina

Meyrick 1915: 255
1915
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