ANOPLURORUM BRITANNIA. '221 



6. MENOPON TROGLODYTI. Denny. (Louse of the 

 Common Wren). 



Plate XVIII. Fig. 7. 



Pale yellow- white, shining; mesothorax distinct ; abdo- 

 men with dark chestnut bands ; legs thick. 



Head sub-trilobate ; clypeus rotundate, with two pitchy 

 angular spots in front, connected by a narrow band, and 

 extending to a conical patch at the temporal sinus ; vertex 

 depressed ; occiput with a transverse sinuated band ; protho- 

 rax semicircular, with a depressed line in front, united to a 

 curved one on each side; mesothorax short; metathorax 

 transverse, base rotundate ; abdomen oval, with a depressed 

 line down each side, centre pale fulvous-yellow, the first 

 eight segments with deep chestnut band at the base, and a 

 smaller patch on the lateral margin, sutures sub-rotundate 

 in the centre, sinuate on each side ; legs very thick ; femora 

 enlarged and revolute. Length | to f . 



Found on the Common Wren (Troglodytes Europaeus). 

 In some varieties the spots on the clypeus are not united by 

 a band. Scopoli enumerates a species, the Pediculus albi- 

 ventris, as infesting the same Bird, may it not be synony- 

 mous with the above ? the young specimens of which have 

 the abdomen without the transverse bands. 



7. MENOPON SCOPULACORNE. Denny. (Louse of the 

 Water Rail.) 



Plate XVIII. Fig. 9. 



Testaceous, smooth, and shining ; head pale fulvous, with 

 pitchy spots on the orbital and occipital margins, last joint 

 of the antennae terminating in a tuft of hairs ; prothorax 

 much produced on each lateral margin anteriorly. 



Head sub- trapezoidal, pale fulvous-yellow ; clypeus with 



