( xvii ) 



all smaller than the respective parts in the normal limb; but 

 the trochanter of that side is abnormally large. The coxa, 

 which is common to the two members, is strangely distorted 

 and plicated, suggesting that the dichotomy may have been 

 induced by an injury to this part during the nymphal stage 

 of the insect. 



This aberrant specimen was found amongst material sent 

 to me (for determination) by Mr. H. Donisthorpe, and was 

 collected at Townsville, North Queensland, where the species 

 occurs in the arboreal nests of an ant {Cremastogaster sp.). 



Lasiocampa ilicifolia. — Mr. L. W. Newman exhibited a 

 fine $ Lasiocampa ilicifolia taken on the wing at Cannock 

 Chase, by Mr. G. B. Oliver on May 25, 1913. Mr. Newman 

 stated that the larvae in captivity took readily to aspen. 



A VARIETAL FORM OP CiDARIA SUFFUMATA. — Mr. A. W. MeRA 



exhibited two specimens of Cidaria suffumata, of an unusual 

 form, from East Devon, received from Rev. J. W. Metcalfe, 

 who takes this form in damp woods and finds it not entirely 

 confined to one wood. The specimens were smaller and the 

 wings appeared to be more rounded than in the type, sug- 

 gesting the possibility of another species. Mr. Mera added 

 that the time of appearance was May. Typical specimens 

 from various localities were exhibited for comparison. 



A SURPRISING FAMILY OF HyPOLIMNAS (EuRALIA) DUBIA, 



Beauv., and anthedon, Dbl., FROM Natal. — Prof. Poulton 

 stated that he had just received, from Mr. E. E. Piatt, of 

 Durban, the male and female parents — both of the wahlbergi 

 form — caught in coitu, with their large family of about 

 200 7nima and wahlbergi in about equal numbers. These 

 results were quite unexpected, in view of the fact that the 

 West Coast anthedon (corresponding to wahlbergi), was shown 

 by Mr. W. A. Lamborn's families, to be recessive; so that a 

 family entirely made up of wahlbergi was to be expected from 

 the parents captiired by Mr. Piatt. Furthermore the equality 

 of the two forms in the family suggested the pairing of a 

 recessive with a heterozygote, and yet the two parents were 

 alike ; so that the heterozygote, on this hypothesis, bore the 

 appearance of the recessive. It was of course possible that 

 the female wahlbergi had previously paired, and that the last 



PROC. ENT. SOC. LOND., I. 1914. B 



