272 Proceedings of the Royal Physical Society. 



N. holophams, N.— From Knot, Aberlady Bay, Sept. 1884, Oct. 1886, Sept. 

 18S8; Bar-tailed God wit, Aberlady Bay, Sept. 1884, Aug. 1886 and 1887; and 

 Purple Sandpiper, Dunbar, Nov. 1906. Invariably associated with i\ r . cingulatus. 



N. numenii, D. — -Three specimens from a Curlew, Aberlady, Nov. 1886, are 

 clearly the insect described and figured by Denny under the above name. Very 

 similar to the last, but larger and darker. 



N. phaeopi, D. — From Whimbrel, Gullane Point, Aug. 1885, and Aberlady 

 Bay, Aug. 1886. Closely related to, and perhaps not specifically distinct from 

 iV. incequalis, Piaget. 



N. bicolor, P. —One example of what I take to be this species from Ringed 

 Plover, Aberlady, Sept. 1884, and four from another specimen of same bird, 

 Scoughall, Sept. 1886. A very distinct form, its elongated shape being suggestive 

 of a small Lipeurus. 



N. truncatus, N. (scolopacis, D.) — From Common Snipe (Gallinago gallinago), 

 Aberlady, Sept. 1887. [Also from Great Snipe ((?. major), Roxburghshire, Sept. 

 1886.] 



N. bicuspis, N. — From Ringed Plover, Aberlady, Sept. 1884. I suggest that 

 Denny's hiaticulce is referable to this species. 

 I N. cingulatus, N. — From Bar-tailed Godwit, Aberlady Bay, Aug. and Sept. 



1884 and 1887; Ruff (Machetes pugnax), Luffness, Sept. 1887; Knot, Aberlady 

 Bay, Sept. 1884, Aug. and Dec. 1885, etc., Cramond. Dec. 1890; Dunlin 

 (Tringa alpina), Dunbar, May 1885; Little Stint, Aberlady Bay, Sept. 1885, 

 Gullane, Sept. 1887 ; Curlew Sandpiper, Aberlady Bay and Gullane, Sept. 1885 

 and 1887 ; Purple Sandpiper, Isle of May, Sept. 1885; Dunbar, Nov. 1906; and 

 Sanderling (Calidris arenaria), Aberlady Bay, Sept. 1885; Mr Waterston tells 

 me he has seen this species from Ringed Plover, Aberlady, and Sanderling, Largo. 

 I have not attempted to distinguish varieties. Some of my specimens from the 

 Knot, and those from the Dunlin, Little Stint, and Curlew Sandpiper, are, I suppose, 

 var. zonarius, N.; they are smaller than the others and have the head narrower, 

 strongly recalling Denny's figure of JV. obscurus. 



N. citrinus, N. — Under this name I place a Nirmus from a Common 

 Guillemot captured at Aberlady, in January 1910. In the shape of the 

 metathorax it agrees with Piaget's description (see ante p. 266). 



N. alcse, D. — From Razorbill, Longniddry, and Kincardine-on-Forth, Jan. 

 1885. The specimens (three in dry state) seem to indicate a broader insect 

 than the next, but fresh examples are required to prove whether the two are 

 or are not specifically distinct ; meantime I keep them apart. 



N. maritimus, K. and C. — From Little Auk, Longniddry [and Orkney], Jan. 



1885 ; North Berwick, Lasswade, Edinburgh, Dalmeny [and St Andrews], Jan. 

 1912. See remarks on p. 266, and Fig. 2. 



N. selliger, N. — From Common Tern, Aberlady Bay, Sept. 1884; and North 

 Berwick, July 1912. 



N. lineolatus, N. (omatus, Grube) — From Glaucous Gull and Kittiwake, 

 Kincardine-on-Forth, Jan. 1885 ; Great Black-backed Gull, Dalmeny, Jan., and 

 Cramond, April 1906 ; and Herring Gull, North Berwick, Oct. 1906. 



N. punctatus, N. — One specimen from Black-headed Gull, Loch Leven, 

 May 1912. 



N. eugrammicus, N. — Three from Little Gull (Larus minutus, juv.), Kincardine- 

 on-Forth, Jan. 1885. 1 



N. triangulatus, N. (normifer, Grube) — One from Arctic Skua, Aberlady 

 Bay, Sept. 1884; and another from Pomatorhino Skua, South Queensferry, 

 Oct. 1887. 



1 Many from saine species of Gull (young bird), Dunbar, 2nd Oct. 1912. 



