182 MONOGRAPH I A 



18. LIPEURUS LURIDUS. (Louse of the Water-Hen and 



Coot.) 



Plate X. Fig. 12. 



Elongate, pale brown; clypeus very much produced; 

 abdomen with a black margin, and lateral quadrangular 

 fuscous fasciae to each segment. 



Lipeurus luridus. Nitzsch. Germ. Mag. Hi. p. 292. Steph. Cat. pt. ii. p. 

 532. Pulex FulicEe. Redi. Expe. pi. iv. f. ii. The Louse of the Moor 

 Hen. Albin. Aran. pi. 45. fig. dext. Shaw's Gen. Zool. vi. pi. 120. 



Head elongate, pale fulvous brown, with a black lateral 

 margin, and transverse sub-angular band in front ; clypeus 

 produced, and pale fulvous yellow ; eyes small and pale ; 

 antennae yellow, rather thick, joints nearly equal in the 

 female; prothorax narrower than the head, transverse, lateral 

 margin black ; metathorax quadrate, dusky on the sides ; 

 abdomen nearly cylindrical, lateral margin black, first 

 seven segments with a quadrangular fuscous patch on 

 each side ; legs pale yellow ; femora with a dusky patch. 

 Length 1. 



I have found this species upon the Coot (Fulica atra) 

 and Water Gallinule (Gallinula chloropus), and venture to 

 place it as the L. luridus of Authors, solely from the cir- 

 cumstance of its being found upon the same birds as that 

 species : my specimens are females, therefore I have no 

 means of ascertaining in what the male differs from that sex. 



19. LIPEURUS BILINEATUS. (Louse of the Fulmar.) 



Lipeurus bilineatus. Steph. Syst. Cat. pt. ii. 333. Pediculus vagelli. 

 Fabr. Ant. 346. Stew. Elem. Nat. Hist. ii. 299. 



I insert this species on the authority of Mr. Stephens's 

 Systematic Catalogue of British Insects, in which it is enu- 

 merated, I have never seen a specimen, or a description of 

 it, therefore can give no information as to its specific cha- 



