Prof. A. Newton on the Great Northern Falcons. 485 



Cilibe impressifrons, n. sp. 



Oblong- or elongate-oval ; ordinarily black, the elytra some- 

 times dark brown, the entire insect sometimes reddish brown ; 

 most niticl on the prothorax ; rather convex : head rather long, 

 rather finely and closely punctured; a distinct, transverse, 

 slightly bowed impression across the front between the eyes : 

 epistoma broadly truncated in front, the suture rather strongly 

 marked and angulate at the sides ; prothorax very finely and, 

 on the middle, remotely punctured ; a strong angulate impression 

 at each side close to the basal margin, and sometimes an obscure 

 transverse impression between them ; apex moderately emar- 

 ginate ; anterior angles subacute, directed forwards ; sides more 

 or less regularly rounded, more contracted anteriorly than pos- 

 teriorly, occasionally a little sinuous before the front angles ; 

 hind angles more or less (sometimes almost imperceptibly) 

 outwardly produced, acute ; lateral margins very slightly ex- 

 panded, a little concave, the edges moderately and almost 

 uniformly thickened : elytra oblong-oval, feebly sinuous at the 

 base ; shoulders more or less distinctly rounded ; punctuation, 

 &c. almost as in C. tibialis, but the interstices, especially at the 

 sides, are more distinctly rugulose ; expanded lateral margins 

 narrow, almost obsolete (or strongly narrowed) at the base, 

 scarcely perceptibly continued to the apex, a little concave, the 

 edges sometimes slightly reflexed at the base : markings on 

 the underside similar, but much feebler, to those in C. tibialis • 

 legs, antenna?, and epipleural fold reddish piceous ; anterior 

 tibiae acute (but not at all dentiform) at the outer apical angle. 



Length 6^-8 lines ; width of elytra 2f- 3f- lines. 



Hab. New Zealand. Five examples. 



The oblong or elongate-oval form, the transverse impression 

 between the eyes, the almost smooth prothorax in contrast with 

 the somewhat coarsely sculptured elytra, the scarcely expanded 

 sides of the prothorax, and the lateral expanded margins of the 

 elytra obsolete at the base, will serve to distinguish this 



species. 



[To be continued.] 



LVI. — On the Great Northern Falcons. 

 By Alfked Newton, M.A., F.R.S., &c. 



To the Editors of the Annals and Magazine of Natural History. 



Gentlemen, 



The much-debated matter of the Great Northern Falcons 

 has so confessedly received its chief elucidation from papers 



