550 Zoological Proceedings of Societies. 



Joshua Brookes, Esq., E. T. Bennett, Esq., J. G. Children, Esq., 

 Thomas Bell, Esq., and W. J. Broderip, Esq. 



December 13. — Mr. Stephens exhibited specimens of six species 

 of the genus DytiscuSy Auct., recently collected in the counties of 

 Huntingdon and Cambridge. Three of these species he stated to 

 have been hitherto unnoticed as natives of the British Islands, and 

 two of these three to be as yet undescribed. He pointed out their 

 names and affinities as follows : 



* Sterni bifidi processu obtiiso. 

 I. D. dimidiatus. Gyllenhal. 

 1. D. punctulatus. Fab. 



** Sterni bijidi processu acuto. 

 a. Fcemince elytris sulcatis. 



3. D. marginalis. Linn. 



4. D. circumflexus. Fab. 



5. D- angustatus. Steph. 



b. Fcemince elytris sine sulcis. 

 9. D. excrucians. Steph. 



The last sectionof these insects, in which the females are with- 

 out the furrows on the elytra, Mr. Stephens described as leading 

 immediately to the genus Tragus^ Leach. He added that there 

 are several continental species referable to this section : among 

 others, D.Jlavoscutellatus, Fab. He also exhibited a specimen of 

 Buprestis cenea, Fab., which had been lately captured in Devon- 

 shire. 



Mr. Vigors read a continuation of the *' Catalogue of New 

 Holland Birds in the Collection of the Linnean Society" by Dr. 

 Horsfield and himself. In this portion of the paper, the Austra- 

 lian species of the family of Caprimulgidce were described ; and 

 the birds themselves, belonging to the genera Poclargus, Cuv., 

 Caprimulgus^ Auct., and ^gotheles, Wgor?, and Horsf., of which 

 the type is the Crested Goatsucker of White's Journal and 

 Phillips's Botany Bay, were exhibited to the meeting. Mr. 

 Vigors also illustrated the affinities of the family by exhibiting 



