14 ON SOME INSECT DEFORMITIES. 



tennal covers visible. The furrow in which the antennae should have 

 been placed begins very shallow on the prothorax, near the head, and 

 runs between the front margin of the anterior wings and the hind 

 legs, somewhat longer on the right side. This furrow is largest along 

 the tibia. The covers of the palpi and the tongue are wanting. 



Botys fuscalis. 



Mr. Stainton exhibited in the Entomological Society in London, a 

 specimen with the head covered by a part of the puparium, caught on 

 the Isle of Man. It was flying briskly when captured, and was other- 

 wise perfectly developed. The antennae and the haustellum were free, 

 and the case of the latter projected downwards like the rostrum of a 

 Panorpa. I am indebted to Mr. M'Lachlan for the communication of 

 this case. 



Of insects not belonging to Lepidoptera, only four with a similar de- 

 formity are known. 



Cybister limbatus. 



Mr. Smith (Proceed. Entom. Soc, London, Ser. 2, Vol. IV, p. 34) ex- 

 hibited a specimen with the larval head, caught swimming near Hong- 

 kong in China. 



Dytiscus marginalis. 



Professor Westwood (the Entom. Month. Mag., No. 82, p. 239) stated 

 that he had seen a specimen with a larval head. 



Hydaticus bimarginatus. 



I am indebted to Dr. John L. Leconte for the information that a 

 specimen of this beetle, with the larval head, is in the collection of Dr. 

 Helmuth in Chicago. 



Syrphus spec. 



Professor Westwood (ibid.) states that he had observed one specimen 

 with a larval head. 



I am indebted to the same professor for the communication that he 

 is about to publish a dozen cases of perfect insects with the larval head, 

 all of which he has figured. 



The specimens mentioned above are : — 

 Lepidoptera. — 1. Vanessa Atalanta. 



2. Vanessa Antiopa. 



3. Nymphalis Populi. 



