CHKYSOMELIDAE. 



193 



Tutuila : 1,100-1,200 ft., iv.1918, 1 example (Kellers) ; in this example the 

 brown has an admixture of red in it, and the elytra! punctures are somewhat 

 bolder. 



Type in the British Museum. 

 Described from nine examples. 



Galeeucinae. 

 Aulacophora Chevrolat. 



Aulacophora Chevrolat in d'Orbigny, Diet. Univ. Hist. Nat., ii, p. 337, 1842. 

 Orthaulaca Weise, Deutsch. Ent. Zeitschr., Jahrg., 1892, p. 393, 1892. 



The genotype of Aulacophora Chevrolat is Galeruca quadraria Olivier. 

 In 1892, Weise (loc. cit., p. 392) suggested that the name Aulacophora should 

 lapse on the ground that it is preoccupied by a genus of plants ; this contention, 

 however, is not in accordance with the rules of zoological nomenclature. Had 

 the suggestion remained buried in the pages of the Deutsch. Ent. Zeitschr. it would 

 not have mattered much, but its author has given effect to it by altering the 

 whole arrangement of the species of this large genus in his Catalogue of the 

 Galerucinae in Junk and Schenkling's Coleopterorum Catalogus (Berlin, 1924), 

 thus necessitating a further rearrangement, which I shall attempt in a future 

 publication. For the purposes of the present paper I include the three following 

 species in Aulacophora, thus giving it recognition as a genus which cannot be 

 abolished. 



10. Aulacophora similis Olivier. 



There are three secondary sexual characters by which the males of this 

 species can be recognised, namely : 



(1) The first segment of the antennae is very greatly enlarged, more so than 

 the same segment in the females. 



(2) A certain area behind the humerus is covered with erect hairs. 



(3) The apical segments of the abdomen are modified ; on the ventral side 

 the last visible sclerite is trilobed, the middle lobe having on each side a deep 

 incision, which has a fold at its base. 



Upolu : Apia, 19.ii.1923, 1 $ (Armstrong) ; v.1924, 2 1 $ ; ix.1924, 

 9 4 1 <$ dissected and mounted in balsam ; 15.X.1924, 1 $ ; xii.1924, 



