Thursday 15 November 2012

Őszibaglyok és Borostyánvirágok - Autumn Noctuidae & Ivy blossom

Vörös Őszibagoly Conistra rubiginea Dotted Chestnut


I had heard before from lepidopterists about how great a time can be had recording moths at Ivy (Hedera helix) blossom but until now my efforts to find moths in this way had been pretty disappointing. Its advantage for the moth recorder is that it flowers late in the year when other possible nectar sources are becoming scarcer. It can therefore function as a relatively efficient natural attractant, focussing the feeding moths present in a habitat together into one place. In Britain, where ivy is a very common woodland plant, finding good stands of it in bloom can be less easy than you might expect - the plants need warmth and sun to produce much blossom. Edges of woods can be good but often the flowers are too high to inspect easily. And then you need the weather conditions to coincide - the evenings need to be warm and calm enough for moths to be actively feeding. Conditions in the British autumn and early winter are often not like that. Living in Scotland where Ivy doesn't even always flower didn't help but even when I have found suitable clumps in England usually it has been in the wrong place and the wrong time for me to observe many moths.


  Zöldes Csipkésbagoly               Phlogophora meticulosa            Angle Shades
 
This year was different because I was in Hungary and in a house which has a big, south-facing patch of ivy alongside it which was well into bloom by late September. In Britain Hedera helix is often in flower a month later and tends to be visited mainly by winter Geometrids and the over-wintering species of Noctuidae (Leverton 2001 Enjoying Moths Poyser). Thronged with Hymenoptera and Diptera by day there were also good numbers of Lepidoptera by night. In the period from 27th September to October 5th, when the evenings were generally warm, I made 53 records consisting of 20 species (about the same number of species as my 40W actinic light trap attracted at the end of September) although I am sure these numbers underplay the total amount of moth activity there was. After that, although there was still sufficient nectar to attract flies by day for another week or two, the nights became distinctly cooler and no more moths were to be found.





Gamma Bagoly      Autographa gamma       Silver Y
unlike the other Noctuids found feeding this moth (in common with others of its subfamily, the Plusiinae) feeds in a semi-hover in front of the flowers - its legs are used for support but the wings are not folded and seldom remain still for long.
Four families were represented but three of these, the Pterophoridae, Arctiidae and Geometridae, only by single individuals; most of the moths were Noctuids. There were 2 species of 'any month' moth (Phlogophora meticulosa and Emmelina monodactyla) plus a Buttoned Snout (Hypena rostralis), a species with a protracted flight period, and  four species of Noctuid which overwinter as adults. The rest were summer or autumn species and although not a huge diversity there was a good range of species some of which, at least for me, were rather choice.
 


Élénksárga Őszibagoly         Jodia croceago             Orange Upperwing
perhaps this moth was the best surprise, an overwintering species but one that my light trap failed to detect either in autumn or spring. It is a warmth loving species with a Holomediterranean distribution, (very rare in Britian or possibly extinct) in Hungary probably associated with the Quercus pubescens karst scrub-woodland habitat which occurs in a scatter of patches amongst more extensive cover of other woodland types, for example, in the Bükk hills. There is a fragment of such woodland on Kis Köves here in Miskolctapolca and it is pleasing to think that the moth may breed here.


Name Magyar1 English family flight period2
Agrochola circellaris Világosbarna Őszibagoly The Brick Noctuidae VIII-X
Agrochola laevis Könnyű Őszibagoly Noctuidae VIII-X
Allophyes oxyacanthae Galagonyabagoly Green-brindled Crescent  Noctuidae IX-XI
Autographa gamma Gamma Bagoly Silver Y Noctuidae V-X
Conistra rubiginea Vörös Őszibagoly Dotted Chestnut Noctuidae IX-V
Conistra vaccinii Változékony Őszibagoly Chestnut Noctuidae IX-V
Dryobotodes eremita Változékony Tölgybagoly Brindled Green Noctuidae IX-XI
Eilema sp. egy Zuzmószövőlepke a Footman Arctidae  
Emmelina monodactyla Közönséges Tollasmoly Morning-glory Plume Moth Pterophoridae I-XII
Eupsilia transversa Rozsdabarna Télibagoly Satellite Noctuidae IX-V
Hypena rostralis Közönségés Karcsúbagoly Buttoned Snout Noctuidae III-XI
Idaea degeneraria Barnasávos Apróaraszoló  Portland Ribbon wave Geometridae V, VIII-IX
Jodia croceago Élénksárga Őszibagoly Orange Upperwing Noctuidae IX-V
Lygephila craccae  Bükkönybagoly Scarce Blackneck Noctuidae VI-IX
Mythimna albipuncta Fehérpettyes Rétibagoly White-point Noctuidae V-IX
Mythimna l-album L-betűs Fűbagoly L-album Wainscot Noctuidae V-X
Noctua comes Kis Sárgafübagoly  Lesser Yellow Underwing Noctuidae VI-IX
Phlogophora meticulosa Zöldes Csipkésbagoly Angle Shades Noctuidae V-X
Xanthia gilvago Foltos Sárgabagoly Dusky-lemon Sallow  Noctuidae VIII-X
Xanthia icteritia Nyárfa-Őszibagoly Sallow Noctuidae VIII-X
   
1. following names given at www.macrolepidoptera.hu  
2. largely based on phenological information given at www.lepidoptera.pl    
A list of the 20 species of lepidoptera found naturally feeding at Hedera helix blossom in late September- Early October 2012, Miskolctapolca, Hungary



Bükkönybagoly            Lygephila craccae       Scarce Blackneck
 

Galagonyabagoly          Allophyes oxyacanthae           Green-brindled Crescent

L-betűs Fűbagoly         Mythimna l-album       L-album Wainscot
 

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