194 MANDIBULATA. — COLEOPTERA. 



Page 67. Co lym betes striatus. " Not very abundant near Marton Lodge." — 

 L. Rudd, Esq. " Cardew-mire." — T. C. Hey sham, Esq. " Newcastle." — ■ 

 G. Wailes, Esq. 



Page 69. Colymbetes pulverosus. " Very common in the gravel-pits at Wey- 

 hill and Appleshaw, sparingly at Kimpton in streams ; and in the canal at 

 Chatford, near Andover." — Rev. G. T. Rudd. " In profusion near Cam- 

 bridge." — C Darwin, Esq. 



Page 70. Colymbetes notatus. cc In abundance near Cambridge." — C.Dar- 

 win, Esq. 



Page 70. Colymbetes exoletus. " Abundantly near Cambridge." — C. Dar- 

 win, Esq. 



Page 71. Colymbetes agilis. " In pools on the hills near Marton Lodge, but 

 very scarce, October, 1828." — L. Rudd, Esq. " In profusion near Cambridge, 

 in 1829."— C. Darwin, Esq. 



Page 71. Colymbetes adspersus. " Plentiful near Cambridge in 1829."— 

 C. Darwin, Esq. 



Page 73. Colymbetes nebulosus. " In profusion in the pits at Weyhill, 1828." 

 — Rev. G. T. Rudd. " Not common near Marton."— L. Rudd, Esq. " New- 

 castle, very abundant/ 1 — G. Wailes, Esq. 



Page 73. Colymbetes subnebulosus. " One specimen near Marton." — L, 



Rudd, Esq. 



Page 73. Colymbetes Sturmii. " Not uncommon near Abbot's Ann." — Rev. 

 G. T. Rudd. " Newcastle."— G. Wailes, Esq. 



Page 73. t Sp. 18. * Colymbetes arcticus. Ohlongo-ovatus, subtilissime 

 reticulato-strigosus, niger, thorace fascia pallida, elytris fuscis margine pal- 

 lidis. (Long, corp. ^ lin.) 



Dytiseus arcticus. Paykul? — Co. arcticus? Steph. Nomenclature, p. 5. 



About as long but narrower than Co. maculatus: head finely reticulate- 

 strigose, broadly pale rufous anteriorly, the crown black, with two oblong 

 pale rufous spots : thorax finely reticulate-strigose, testaceous yellow, with 

 the anterior and posterior margins black : elytra oblong-ovate, a little dilated 

 in the middle, the apex rounded, finely and thickly reticulate-strigose, fus- 

 cous, with the lateral margins pale, the disc impunctate : body dull black be- 

 neath, with the margins of the segments narrowly testaceous ; sternum ferru- 

 ginous : legs pale rufo-testaceous. 



It varies in having the thorax black, with the lateral margins alone irregularly 

 pale. " Netley."— Rev. F. W. Hope. 



Page 76. Colymbetes chalconotus. "Not common near Kimpton."— Rev, 



G. T. Rudd. " Cardew-mire."— T. C. Hey sham, Esq. 

 Page 77. Colymbetes femoralis. " Common at Longnor, Salop, in October, 



1828." — Rev. F. W. Hope. Specimens of this species have been in the London 



cabinets upwards of twenty years. 



