( 2 ) 



erici and helcita, and finds t bat their caterpillars have different 

 patterns, and that erici is gregarious and helcita solitary in the 

 larval state, 

 iv] 



Htpolimxas (Euralia) dubius, Beauv., a Mendelian 



dominant, and h. (e) anthedon, boisd., recessive. 



Prof. Poulton exhibited part of an all-anthedon family 

 recently bred by Mr. Lamborn at Oni Camp seventy miles 

 east of Lagos, from an anthedon female parent, and part of 

 an a31-dubitC8 family also bred from an anthedon female. 

 Both families were amply large enough to preclude the 

 bility of accident. The facts indicate that in the first 

 family a recessive female had paired with a recessive male, in 

 bhe second that a recessive female hail paired with a dominant 

 male. There can be little doubt that bhe pattern of anthedon 

 conforms more closely to that of the genua than the pattern 

 of dubius and thai the dominant form is therefore the more 

 recent development. 



Butterflies a Natural Food of Monkeys. — Prof. 

 Poi i. ion read the following note received in a letter from 

 Mr. W. A. Lamborn, November 17. 1911 : — 



"Our District Commissioner, Captain Neal, who occasion- 

 ally spends a few days with us [at Oni Camp] tells me 

 several times seen 'dog-faced monkeys,' (not 

 baboons hut probably mangabeys), squatting beside mudholes, 

 such as butterflies of some kinds resort to in large numbers 

 in the dr\ season, and catching them one after the other ami 

 eating them. It occurred to me that this evidence might be 



valuable as BhowiDg that butterflies may !>•• a natural f 1 



of monkeys. 



THE UBTIOATINO HAIRS OF \ LaSIOCAMI'II) LARVA DISSEMINATED 



THROUGH nil. \ir. —Prof. Poulton exhibited specimens of the 

 Lasiocampid moth Minn '8ta okeri, Dewitz, bred from 



bhe caterpillars referred to by .Mr. Lamborn in the quotation 



from his letter printed below. Prof. Poulton said that 

 although the subject had been extensively discussed he 

 thought it was important to >how that the hairs were a 

 powerful defence against natural enemies, and also that they 

 were spread through the air — a fact he had himself observed 



