Note on the Genus Ametalla. cxxxix 



to reduce into something like order our ruclis indigestaque moles of species of Coleop- 

 tera, places, without hesitation, the Criocerites among the Chrysomelines (see p. 383). 

 I shall be glad of the assistance of entomologists on this subject, and repeat, merely as 

 suggestive, the opinion I have already expressed elsewhere, that all the affinities of the 

 group in question are with the Cerambycites, more especially with the Lepturidae. 



Ametalla xanthura. 



Nigra, nitida, elytrorum humeris plus minusve rujis, apicibus Jlavis ; metafemora sub- 

 tus tubere mediano denteque valido acuto prceapicali armata. (Corp. long. "5 unc. 

 Elytrorum lat. max. '2 unc.) 



Antenna* fusco-testaceous, scarcely longer than the prothorax, of uniform thick- 

 ness, 11-jointed, the 2nd joint short, the 3rd rather longer, and each succeeding joint 

 slightly longer, the last acuminate : eyes promineut, almost round, rather small, very 

 distant: mandibles strong, arcuate, sharp-pointed and furnished with an internal lobe ; 

 labipalpi with a short basal and two longer joints, the middle joint cylindrical, the 

 terminal one ovate ; maxipalpi with a short basal and three longer joints, the 2nd and 

 3rd cylindrical, the 4th ovate : head not narrowed behind the eyes, black, punctured, 

 shining : prothorax rather broader than the head, somewhat obcordate, its greatest di- 

 ameter being near its anterior margin, black, punctured, shining : elytra ample, much 

 broader than the prothorax, having a deep sulcus on each very near the suture, punc- 

 tured, the punctures arranged in about 12 irregular linear series, black, with a coral- 

 red humeral spot, various in size and figure, and a large yellowish apical patch, from 

 which a yellow line, more or less distinct, extends both along the sutural and costal 

 margins : legs of moderate size ; metafemora slightly incrassated, furnished beneath 

 with a slight central lobe and a strong acute praeapical tooth ; tarsi 5-jointed, the 1st 

 and 5th joints longest and of equal length, the basal joint notched at its apex, the 2nd 

 more deeply divided, the 3rd short, very deeply divided and bi-lobed, the lobes long 

 and externally very hirsute, the 4th joint short, cylindrical, shining, and without hairs, 

 and the 5th curved, slender, shining, the claws strong, simple. 



Hab. — Australia. Two specimens, collected by Mr. Wilson, have been consigned 

 to Mr. S. Stevens. 



Ametalla uber. 



Nigra, nitida, elytrorum testaceorum suturd strigisque octo nigris, metafemora subtus 

 tubere mediano denteque valido acuto pi-aapicali armata. (Corp. long. *45 unc. 

 Elytrorum lat. max. '15 unc.) 



Antennae fusco-testaceous, as long as the body, of uniform thickness, 11-jointed, 

 the 2nd joint very short, the 3rd scarcely longer, the others gradually increase in 

 length, the last acuminate : eyes very prominent, almost round, rather large, very dis- 

 tant : head black, closely and almost confiuently punctured: prothorax rather broader 

 than the head, somewhat obcordate, its greatest diameter being near its anterior mar- 

 gin, black, punctured, shining: elytra ample at the base, quite twice as broad as the 

 base of the prothorax, each having a sulcus near the suture, and a number of deep 

 punctures arranged in 8 irregular linear series, bright testaceous, with the suture and 

 10 linear spots black, these black spots or marks are however very inconstant in size, 

 figure, and even occasionally in number, in the specimen before me, two of these long 



