N A T U R K U N D L I C H E S † I N F O R M A T I O N S S Y S T E M

Stigmella cocciferae van Nieukerken & Johansson, 2003

(zoological nomenclature: valid name, available)

General information:

Stigmella cocciferae van Nieukerken & Johansson, 2003: 329.
Type locality: Greece, VoiotŪa, ArŠkhova
Type: Holotype : Greece: ArŠkhova (VoiotŪa), cult. terraces, olive & almond, 950m, 38.29N-22.35E, 27-29.ix.1980, at light, S.B.J. Menken & E.J. van Nieukerken, in coll. RMNH

Synonyms, misspellings, wrong determinations, etc.:
---

Habit:

   
PARATYPE: Greece, Kos, Asfendiou PARATYPE: Greece, Kos, Asfendiou    
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
   

Description of adults: (Nieukerken & Johansson 2003) . "Forewing length 2.2-3.2 mm, wingspan 4.9-7.0 mm. Head: frontal tuft yellowish orange, collar fuscous. Scape pale yellow. Antenna dark bronze brown, 3/4 of forewing length, with 36-49 segments, ratio to forewing length 13-19 segments/mm. Thorax and forewing unicolorous dark bronze brown, weakly shining; terminal cilia concolorous, slightly paler at tip; underside bronze-brown. Hindwing coarsely scaled, fuscous, distal 1/4 brown, basal 3/4 of dorsum with long dark grey-brown androconial scales, extending into fringe, the longest near base, approximately 2/3 of cilia length; along basal half of costa long curved, spatulate bluish-black androconial scales, the longest as long as or longer than the shortest dorsal androconial scales; underside grey brown, cilia dark grey. Abdomen dark grey brown, with pale yellowish anal tufts inserted on well sclerotized plates."
. "Forewing length 2.2-2.9 mm, wingspan 4.9-6.2 mm. Antenna with 30-37 segments, ratio to forewing length 12-15 segments/mm. As male, but collar pale yellow, hindwing grey, androconial scales absent, abdomen dark grey, without anal tufts.

Distribution:

The species is found from Greece to Turkey and Israel. It is widespread in the eastern Mediterranean with records from mainland Greece, the Aegean islands, Crete, Turkey and Israel and is also to be expected in Cyprus, Syria and Lebanon. It occurs from sea level up to 1800 m in Taurus (Nieukerken & Johansson 2003, Nieukerken 2016).

Biology:

Adults are on the wing from April to July and again from September to October. The species is therefore probably bivoltine, or even with more generations. A larva was collected in February (Nieukerken & Johansson 2003, Nieukerken 2016).

Stages in development:

     
Mine on Quercus coccifera      
Picture from: Nieukerken 2014 (CC-BY-NC 3.0)
Detailed view
     

Description of early stages following Nieukerken & Johansson 2003 and Nieukerken 2016:

Egg. The egg is laid on the leaf underside. It is similar to that of S. suberivora.

Larva. The larvae mine the leaves of Quercus coccifera. Twice they were reared from this host and in Greece, the imagines were always collected near Q. coccifera, the latter often with vacated mines. The mine is a broad corridor with the frass in a broad band, leaving narrow clear margins.

Anatomy:

-genitalia, EvN 2986 -genitalia, RJ1725: Greece, Kos -genitalia, aedeagus, EvN 2986 -genitalia, aedeagus, RJ1725: Greece, Kos
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
 
-genitalia, EvN 2845 -genitalia, abdominal tip with tergite 8, EvN 2845 -genitalia, PARATYPE, 1726: Greece, Kos  
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
 

Genitalia. "Capsule relatively narrow compared to related species. Vinculum bilobed anteriorly. Uncus with widely separated horns. Gnathos with long, widely separated posterior processes. Valva with pointed distal process less than 1/4 valva length, in lateral view medial; inner margin almost straight with almost rectangular distal angle; sublateral processes about 1/3 transtilla length. Aedeagus with vesica with a more or less curved group of cornuti in basal half; this band comprises about 35-40 large cornuti with serrated bases and many small spinelike cornuti; more distally there is a group of ca 12 long needle-shaped cornuti and one larger near phallotrema; manica covering distal 2/3 of aedeagus, covered with small spines and pectinations." (Nieukerken & Johansson 2003)

Genitalia. "T8 with more than 20 setae. Bursa well visible, total length 1050-1120 Ķm, 2.4-2.6 as long as accessory sac; walls thin, without pectinations. Accessory sac more strongly sclerotized, without pectinations. Ductus spermathecae with ca 6-7 convolutions." (Nieukerken & Johansson 2003)

Diagnosis:

S. cocciferae PARATYPE: Greece, Kos, Asfendiou S. ilicifoliella : Spain, Cadalso de los Vidrios S. suberivora : Italy, Itri S. cocciferae -genitalia, RJ1725: Greece, Kos
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
S. ilicifoliella -genitalia, RJ1754: Spain S. suberivora -genitalia, RJ2278: Italy Comparison of valvae: S. suberivora, S. ilicifoliella, S. cocciferae S. cocciferae -genitalia, aedeagus, RJ1725: Greece, Kos
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
S. ilicifoliella -genitalia, aedeagus, RJ1754: Spain S. suberivora -genitalia, aedeagus, RJ2278: Italy S. cocciferae -genitalia, PARATYPE, 1726: Greece, Kos S. ilicifoliella -genitalia, HOLOTYPE, RJ2275A: Spain
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
     
S. suberivora -genitalia, HOLOTYPE, 1667: Tunisia      
Picture from: Nieukerken 2016 (CC-BY-NC 3.0)
Detailed view
     

S. cocciferae is very similar to the western European S. ilicifoliella. The latter is usually darker and has the androconial scales extending to the tip of the hindwings, whereas S. cocciferae has no androconial scales in the distal 1/4. Further androconials in S. cocciferae are paler and shorter than in S. ilicifoliella.
In the male genitalia, the capsule and valvae in S. ilicifoliella are markedly wider than in S. cocciferae and the gnathos horns are club-shaped; in S. ilicifoliella the manica covers the aedeagus almost completely and in S. cocciferae only the distal 2/3.
The female genitalia are very similar to S. suberivora and S. ilicifoliella, but the bursa in S. suberivora and S. ilicifoliella is much longer compared to the accessory sac than in S. cocciferae.
S. cocciferae seems to occur completely vicariantly with S. suberivora, of which the closest records are in south Croatia (Zadar). No records of either species are known between northern Greece and Zadar (Nieukerken & Johansson 2003).

Worth knowing:

Sources:

Nieukerken, E. J. van & R. Johansson 2003. The Quercus feeding Stigmella species of the west Palaearctic: new species, key and distribution (Lepidoptera: Nepticulidae). Tijdschrift voor Entomologie 146 (2): 307-370.
Nieukerken, E. J. van 2016. Nepticulidae and Opostegidae of the world. - URL: http://nepticuloidea.info/ [online 2016.04.05].

Publication data:

history:
Kurz Michael: 2016.04.12
Kurz Michael: 2016.06.23
Kurz Michael: 2017.06.14
Document reviewed by:
not reviewed: 2017.06.14
Document released by:
Kurz Michael: 2017.06.14

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