Evergestis marionalis

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Evergestis marionalis
Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Crambidae
Subfamily : Glaphyriinae
Genre : Evergestis
Type : Evergestis marionalis
Scientific name
Evergestis marionalis
Leraut , 2003

Evergestis marionalis is a butterfly from the family of Crambiden ( Crambidae ).

features

The moths reach a wingspan of 18 to 20 millimeters. The head, thorax and abdomen are light yellowish brown to pale coffee brown. The forewings shine lemon yellow. The inner and outer transverse lines are thin, serrated and inconspicuous, the subterminal line is more serrated. Basal to the first there is a purple-brown line that tapers from the Costa loader to the inner edge of the wing. Basal to the subterminal line is an equally wide and similarly colored band that almost reaches the outer transverse line. A narrow reddish-brown band runs along the edge, which has a number of very small yellowish dots between the ends of the veins. It is more or less connected to the outer transverse ligament. The square discal patch is the same color and can be connected to the pale dark stripe on the Costa Lader. The fringed scales are purple-brown and darker in the basal third. The hind wings are dirty straw yellow and marked with a faint and incomplete outer transverse line. On the outer edge of the wing there are some dark spots between the wire ends. The fringed scales are yellowish straw-colored. The undersides have a strong gloss and the pattern on the upper sides is faintly recognizable. There are also specimens in which the dark bands are stronger and are therefore closer together.

In the males, the uncus is slender and has a sparse tuft of hair at the tip. The gnathos is very thin and toothed irregularly. The blades are parallel-walled and have a rounded tip. The clasper is missing. The distal part of the phallus is slightly narrower than the basal part, it is provided with about 8 slender cornuti. Evergestis marionalis differs from Evergestis politalis by the shorter blades, the shorter uncus and the shorter phallus with smaller cornuti.

In females, the corpus bursae is large and egg-shaped. It tapers and merges into the ductus bursae . The Signa are very small. The bursal duct is medium in width and does not taper. In front of the colliculum there is a flap-shaped protuberance (diverticulum). Evergestis marionalis differs from Evergestis politalis in the widened antrum , the short, weakly sclerotized ductus bursae with parallel sides and the long oval bursa with two small signs.

Similar species

Evergestis marionalis can only be confused with Evergestis politalis . The first-mentioned species is usually much smaller and the thorax is always coffee-brown and not yellowish. The front wings are narrower, have a straighter Costa loader and the outer edge of the wing is sloping. The drawing is less vigorous and the complex pattern of darkened veins in the midfield is missing.

The hind wings of E. politalis are usually darker and have a clearly drawn outer transverse line and a dark shadow on the outer edge of the wing. The undersides are drawn much stronger. The hind wings are provided with a dark, complete outer transverse line and have a subterminally darkened fringe.

distribution

Evergestis marionalis is common in southeastern France ( Aude , Pyrénées-Orientales ), Spain, Malta and North Africa ( Algeria , Morocco : Ifrane province , Tunisia ).

biology

The pre-imaginal stages are unknown, the caterpillars presumably live on cruciferous plants . The species forms at least two generations that fly from February to March and from July to October (according to Leraut 2012 from May to June and from September to November). The species was found in the Middle Atlas up to an altitude of 1650 meters. In Spain it inhabits open, dry, rocky regions. The moths come to light .

Systematics

Evergestis marionalis is also known in the literature as Evergestis bifascialis . According to Leraut 2003, the name bifascialis Guenée is a synonym of Evergestis politalis and represents a subspecies of the last named species, which is native to Sicily and North Africa.

supporting documents

  1. ↑ a b c d e f g h Barry Goater, Matthias Nuss, Wolfgang Speidel: Pyraloidea I (Crambidae, Acentropinae, Evergestinae, Heliothelinae, Schoenobiinae, Scopariinae) . In: P. Huemer, O. Karsholt, L. Lyneborg (eds.): Microlepidoptera of Europe . 1st edition. tape 4 . Apollo Books, Stenstrup 2005, ISBN 87-88757-33-1 , pp. 91 (English).
  2. ↑ Seguna, A .; Moreno, A. Vives (2006): A new Pyraloid moth for the Maltese Islands. Evergestis marionalis Leraut, 2003 (Lepidoptera: Crambidae). SHILAP Revista de Lepidopterología 34 (134): p. 149 PDF
  3. ↑ a b c Patrice Leraut: Zygaenids, Pyralids 1 . In: Moths of Europe . 1st edition. Volume III. NAP Editions, 2012, ISBN 978-2-913688-15-5 , pp. 197 (English).

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