Entomological Society. 317 



side of the pod throug-h which it descends to the ground, into which 

 it burrows about an inch, where it assumes the pupa state. 



Depressaria Gossypiella. Dark fuscous brown, the head and thorax 

 somewhat lighter in colour ; fore wings with an tindefincd round 

 blackish spot on the disk a little above the centre of a fascia of the 

 same colour, crossing the wings a little above the apex, ivhich itself 

 is black ; under wings silvery gray, darker towards the hinder 

 margin. Length ^j*^^ "^ ^" ^'^^^• 



Descriptions of new Australian Chrysomelidce alhed to Cryptoce- 

 phalus. By W. W. Saunders, Esq., President. 



The name Anodonta having been previously employed in zoology, 

 the author proposes the name of Idiocephala in its stead, and de- 

 scribes the following new species : — 



Sp. 7. Idiocephala sirailis, S. Black ; head, thorax and elytra deeply 

 jmnctured, the latter with the surface undulating, somewhat fuscous 

 at the apex ; body beneath with the sides of the mesosternal region 

 and of the abdominal segments silvery pilose ; legs with a purplish 

 iridescence. Length yg'gth of an inch. Cabinet Ent. Club. 

 Inhabits New Holland. 



Sp. 8. Idiocephala Tasmanica, S. Head rufous broivn, with three 

 round yelloio facial spots ; antemne broion, darker at the tip, basal 

 joint yellow ; thorax rich rufous brown, margins yellow, and with 

 two yellow longitudinal lines on the disk behind; elytra rufous brown, 

 with the apex and margin round the scutellum yellow, each with 

 four longitudinal carin<£ ; legs rufous broivn. Length yL^^th of 

 an inch. Cabinet Ent. Soc. Lond. Inhabits Van Diemen's 

 Land. C. Darwin, Esq. 



Sp. 9. Idiocephala Darwinii, S. Head black, with a large trian- 

 gular patch in front ; antennee dusky broivn, basal joints rusty 

 brown beneath ; thorax rifous brown, pitchy in front ; elytra punc- 

 tate-striate, dark metallic green, the apex luteous ; legs horn- 

 coloured; tarsi dusky. Length y^fj-jyth of an inch. Cabinet Ent. 

 Soc. Lond. Taken near Sydney, N. S. Wales. C. Darwin, Esq. 



Sp. 10. Idiocephala semibrunnea, S. Head shining black ; face 

 rifous brown ; antenmc black, basal joints rifous broivn ; thorax 

 rufous brown ; scutellum shining black ; elytra brown, punctate- 

 striate, margined with black, which ascends half-way along the su- 

 ture ; legs horny brown; tarsi pitchy. Length ,-^ythof an inch. 

 Cabinet Ent. Soc. London, Taken near Sydney by Mr. Darwin. 



Monograph of the genus Nyctelia. By G. R. Waterhouse, Esq., 

 who exhibited the extensive collection of that group belonging to 

 the Marquis de Breme, who was present at the meeting. 



[This memoir has subsequently been published in the Proceedings 

 of the Zoological Society.] 



Descriptions of new species of insects collected at Adelaide in 

 South- Western Australia by Mr. Fortnum, By the Rev. F. W. Hope. 



Fam. BupRESTii)^. 

 Sp. 1. Stigmodera Fortnumi. Violacea, capite viridi, thorace 



