290 



CURCULIONID^E. 



and so nearly allied to the last species that I am doubtful whether 

 it should be treated as more than a slight geographical modification 

 of it. 



The A. maderensis seems to differ from the convexifrons, merely 

 (unless indeed any characters have escaped my observation), in its 

 limbs and rostrum being just perceptibly thicker and less pale, in its 

 forehead being a trifle less convex, in the second joint of its antennae 

 being a little shorter and more oval, whilst the last one is appreciably 

 wider and less acute (or conical). Perhaps also, on the average, it 

 is somewhat more densely pubescent. 



(Subfam. X. APIONIDES.) 



Genus 251. APION. 

 Herbst, Keif. vii. 100 (1797). 



802. Apion frumentarmni. 



Ourculio frumentariuSj Linn., Fna Suec. 175 (1761). 



Apion frumentarium, Schon., Gen. et Spec. Cure. i. 283 (1833). 



? Woll, Ins. Mad. 412 (1854). 



, Id., Cat. Mad. Col. 121 (1857). 



Habitat Maderenses (Mad., P to S to ), in intermediis editioribusque, 

 passim. 



This common European Apion occurs sparingly in Madeira proper 

 and Porto Santo, where perhaps it may have become established 

 from more northern latitudes ; but it has not yet been detected in 

 the Canarian Group. 



803. Apion malvse. 



Curculio Malvaj, Fab., Syst. Ent. 132 (1775). 



Apion Malvae, Schon., Gen. et Spec. Cure. i. 272 (1833). 



, Woll., Ins. Mad. 411 (1854). 



1 Id., Cat. Mad. Col. 121 (1857). 



Habitat Maderenses (Mad.), folia Malvarum saepius in cultis destruens. 



Likewise a European Apion, and one which is locally common (on 

 the foliage of Mallows) in Madeira proper, though hitherto it has 

 not been found in any of the other islands. 



804. Apion senex, 



Apion senex, Woll., Cat. Can. Col. 306 (1864). 

 Habitat Canarienses (Gom., Palma}, in intermediis rarissimum. 



