148 BR. J. ENT. NAT. HIST., 7: 1994 



Tebbut, P. — A range of aberrations of Aphantopus hyperantus L. showing 

 variation in spotting from ab. arete Muller to ab. lanceolata Shipp, and an unusual 

 female underside aberration with whitish scaling extending distally from all spots. 

 Pyronia tithonus L., males abs. antipallidula Leeds and antiparvipuncta Leeds. Two 

 bred M. jurtina L. were shown. One was a male ab. commaculo Leeds (ground colour 

 on the upperside marbled and pale markings — a scale defect) and a female ab. pauper 

 Verity (with reduced upperside fulvous). Aricia agestis D. & S. ab. pallidior Ober (pale 

 lunules). Two female aberrations of Pier is napi, one being ab. fasciata Tutt and 

 nigropunctata Lamb, and the other ab. deleta Strand and unimacula Dziursynski 

 (reduced markings). 



Tremewan, W. G. — A fine aberration of P. icarus Rott. (Plate I, Fig. 6), from 

 the Isle of Skye (27. vi. 1993). This was an extreme melanic male on both surfaces, 

 bearing a resemblance to the melanic male L. coridon exhibited at the 1992 Exhibition 

 by G. D. Trebilcock and illustrated in Br. J. Ent. Nat. Hist. 1993; 6: Plate II (although 

 this coridon form was a mosaic with type coloration also). 



Tubbs, R. S. — A drawer of aberrations of P. tithonus including a fine series of 

 ab. mincki Seebold (ground colour yellow-white) bred in the F 2 from an original 

 mincki parent taken in Wilts by R. C. Revels in 1981. It proved to be a recessive 

 form. Five F 2 specimens of the very dark aberration also exhibited by R. C. Revels, 

 and bred from ova supplied by him. Fifteen specimens of ab. excessa Leeds (extra 

 forewing spotting) from Minehead, 1952. R. C. Revels has shown this to be a 

 multifactorial/polygenic form as is the corresponding form in M. jurtina, as illustrated 

 in the exhibit of R. D. G. Barrington. 



Warne, B. J. — A male Maniola jurtina L. ab. partimtransformis Leeds having 

 the left side strongly bleached (I.o.W., 23. vi. 1993) and a female Q. quercus taken 

 at m.v. light (I.o.W., 18.vii.1993). 



Winokur, L. — A large exhibit of breeding experiments with Pararge aegeria L. 

 carried out at Reading University, funded by the Natural Environmental Research 

 Council (UK). 



(1) Breeding experiments showed an increase in wing size from south to north 

 (using stocks from Salisbury, Wilts, (spp. tircis Godart), North Wales (spp. tircis) 

 and N-W Scotland (ssp. oblita Harrison)) when stock was reared under similar 

 conditions. Within each population, stock reared at lower temperatures produced 

 larger adults. 



(2) An aberration from two North Wales localities with an extra forewing ocellus 

 in space 2. It is a recessive form. 



(3) Breeding experiments involving colour forms similar to ab. cockaynei. One 

 conclusion was that this form can be produced artificially either by changes in 

 daylength or in temperature. 



Young M. — Lycaena phlaeas L. ab. alba Tutt (Rossie Moor, Angus, 

 4.vii.l993 — donated to the exhibitor by Dr John Langmaid). 



Young, L. D. — A fine display of aberrations of Polyommatus icarus Rott. being 

 a condensed version of the huge breeding experiment with abs discoelongata B.&L. 

 and basielongata B.&L., the yearly results of which have been displayed at the Annual 

 Exhibition since 1985. The present exhibit showed four specimens from each generation 

 after the two aberrations were crossed in 1986. The development through to ab. 

 antiradiata with enlarged hindwing spots in the later generations could be seen very 

 clearly. The abs retrojuncta B.&L. and limbojuncta Courv. have appeared at random 

 throughout the experiment. Also shown was a group of the most extreme female 

 upperside forms that have occurred, including some striking blue aberrations. Nine 

 specimens were shown from the last year's breeding, including some very good 



