110 MONOGRAPHIA 



sutures deeply sinuated ; legs thick ; tibiae with a dark band 

 at the apex ; anterior femora enlarged. Length f . 



Communicated by the Rev. L. Jenyns and Mr. G. R. 

 Denny from the Sparrow Hawk (Accipiter nisus). Although 

 this species resembles the preceding in several respects, its 

 smaller size, narrow clypeus, and pale fulvous-yellow lateral 

 fascia, sufficiently distinguishes it ; add to which, I have not 

 found this species infesting the Buzzards, or the D. platy- 

 stomus the Sparrow- Hawk. 



58. DOCOPHORUS BASSAN.E. Denny. (Louse of the 

 Gannet.) 



PlateVI. Fig. 3. Plate VII. Fig. 3. 



Elongate, deep chestnut; abdomen pale fulvous, with 

 the lateral fasciae deep liver-colour and confluent. 



Pediculus Bassani? Muller's Prodr. 2193. Fabr. Faun. Green. 218,188. 

 Groenl. Kuksub. Koma. 



Head and thorax deep chestnut, the former obtusely tri- 

 angular ; clypeus pale, slightly produced and curved, black 

 band extending from the anterior part of the lateral margin 

 before the eyes to the occiput, base obtuse ; antennae and 

 trabeculse short, pale yellow ; eyes black, prominent ; pro- 

 thorax transverse, anterior margin rounded, posterior con- 

 vex, slightly channelled ; metathorax quadrate, deep liver- 

 colour, with a transverse line and two punctures, base trun- 

 cate, with a tuft of hairs seated in a deep fovea at each 

 angle ; abdomen elongate ovate, fulvous yellow, lateral 

 fasciae deep liver-brown, confluent, except the last three ; 

 stigmatic apertures large and deep; sutures deeply im- 

 pressed ; legs chestnut, rather thick ; anterior femora large, 

 subangular. Length 1 to 1J. Immature. Head and tho- 

 rax chestnut, the sutures pale yellow, and a transverse dark 



