973 



NOTES ADDED IN PRESS. 



Hydroporus niger, Say (No. G22). and llydropovus diclirous, Melsh. (^No. G20). — There is considerable 

 «loubt wlietlier I ha\e cori'ectly identified these two species, and it will be found an ailvantage therefore 

 that the original descriptions are also reproduced, (Nos. 1494 and 1361, respectively.) 



Hydroporus orientalis, Clk. (Xo. 2S7). — The iilentification of the species described under tliis No. 

 with Clark's description is an error : the insect Clark had iu view was a species of Hydrovatus ; Clark's 

 description is given in the Appendix, No. 1411. The name of No. 287 should therefore read " Bidessus 

 orientalis, u.sp,," and '' Clk., M.C.," should be deleted. 



Hydrovatus maculatus. — This name occurs in the appendix of unrecognized descriptions (No. 1452), :is 

 well as in the body of the memoir (No. 182); although this is the result of negligence on my part, I do 

 not think it necessary at j)re^ent to propose an alteration in the name of No. 182, for it appears to me 

 possilile that the two desi'riptions may really pertain to the same species. 



Dytiscus obscurus. — ^I'his name is twice used, viz., for Nos. 130, and 782 ; priority gives the name to 

 No. 130, and No. 782 will therefore take the name of Colymbetes quadriguttatus, Lac. (Faun. Ent. Par., 

 p. 31G.) 



Dytiscus interruptus. — This name also is twice used, viz., for Nos. 128, ami lOCO; for the latter 

 species therefore the name " Acilius interruptus, Aube," may be adopted. 



Kedtenbacher (Rcise Novara, II, p. 23), records the occurrence of Eretes (EunecttJs Eedt.) in New 

 Zealand. This, if correct, would be of considerable interest ; but as errors so frequently occur from the 

 ftict that voyaging collectors visit Australia and New Zealand in one voyage, the record must be corrobo- 

 rated before being relied on. 



Since my paper was read to tlic Society, I ha\e received from Dr. John Saldberg a coi)y of his impor- 

 tant memoir on Siberian Coleopteia, "Bidrag till Nordvestra Sibiriens lusektfauna, Kongl. Svenska vet- 

 ak. hand.," vol. 17, No. 4. (The extract bears date 1880, but I believe was not published till the 

 middle of 1881.) This work records a considerable number of species of Dytiscidre found by the author 

 during his travels in these regions iu 1870 and 1877. A considerable portion of these are recorded in 

 my paper. Dr. Saldberg having been so kind as to forward me beforehand a list for the purpose. Several 

 new s^jecies are described iu the memoir, viz., Ccelambus unguieularis, Hydroporus intermedins, H\'di'0- 

 purus punctipennis, Hydroporus senesceus, Hydroporus pectoralis {nee Motscli.), Hydroporus obovatus, 

 Hydroporus sibiricus, Gaui-odytes punctipennis, Gaurodytes nigripalpis, Gaurodytes amnicola, and Gauro- 

 dytes slovzovi .... Of tJiese Crelambus unguicularis=C. sahlbergi. No. 407, huj. op. Sahlberg's name 



6 12 



