ANOPLURORUM BR1TANNL3E. 177 



antennae pale yellow, the male with the first joint large, 

 cylindrical, second similar, but smaller, third short and 

 abruptly hooked, last two small and equal ; prothorax trans- 

 verse not so wide as. the head; metathorax quadrate, with 

 a pitchy-black cuneiform band on each side, base, truncate; 

 abdomen elongate, clavate, pale dirty white, the lateral 

 margin of the first seven segments with a broad pitchy- 

 black, and interrupted quadrangular band, paler internally ; 

 stigmatic orifices pale in the centre, terminal segment 

 tawny-yellow; legs long and thick, and finely pubescent. 

 Length <? | p If. 



Communicated by Mr. Selby from the Mallard (Anas 

 Boschus), by Mr. Thompson and Mr. Heysham from the 

 Scaup Duck (Fuligula Marila), and the Scoter (Oidemia 

 nigra), and I have taken it myself from the Pochard 

 ( Fuligula ferina). 



13. LIPEURUS JEJUNUS. (Louse of the Goose.) 



Plate XV. Fig. 4. 



Filiform, pale yellow- white, witha pitchy margin, the 

 first eight segments with quadrangular bands ; legs dusky 

 above. 



Lipeurusjejunus. Nitzsch. Germ Mag. iii. p. 292. Stoph. Syst. Cat. pt.ii. 

 p. 332. Children's Appen. Back's Land Expe. p. 538. Pediculus Ana- 

 tis Anseris. Linn. Syst. Nat. ii. 1018. 18. Faun. Succ. 1952. Fabr. 

 Syst. Ent. 807. 19. Syst. Inst. ii. 480. 22. Schr. Inst. Aust. 503. 

 Stew. Elem. Nat. Hist. 299. Turton iii. 699. Nirmus crassicornis. 

 Olfers. 88. Pulex Anseris Sylvestris. Redi. Expe. pi. x. fig. dext. 

 The Louse of the Wild Goose. Albin. Aran. 76. tab. 58. 



Head oblong and depressed, pale tawny-yellow, with an 

 interrupted pitchy margin ; eyes small ; antennae similar to 

 the preceding, pale yellow-white, apex dusky; prothorax 

 transverse, with a pitchy margin ; metathorax oblong qua- 

 drate, slightly sinuated at the sides, with a pitchy cuneiform 



