of the Family Buprestidse. 249 



posterior margin (but leaving a bare spot at the basal margin), 

 in this species is more confined to the basal part of the seg- 

 ment and. leaves no bare spot at the base. 



This species forms an interesting passage from S. Sievensii 

 to S. Cohianti, Kerr. In this latter, which is of a brassy 

 colour above as well as below, the abdomen has the pubes- 

 cence arranged nearly as in Sievensii, but it is much less 

 dense and the pubescent spots are very vague. 



In S. Duvivieri, Kerr., which has the underside coloured 

 much as in S. Zechiana, the pubescence on the abdomen is 

 longer, more sparse, and does not form spots at all. The 

 elytra in some specimens show very slight traces of the 

 elongate spots as in the interra^jta group. 



S. me/z/ii^/t*, a smooth shining insect, has the pubescence on 

 the abdomen as in S. Sievensii — i. e., with four smooth spots 

 surrounded by fine pubescence on the third and fourth 

 segments. 



Acherusa Saundersii, sp. n. 



Very dark cyaneous, with the sides of the thorax and the 

 whole underside clothed with ashy pubescence. Elytra with 

 the basal area coppery, with purple and brassy shades ; this 

 colour is extended posteriorly more on the fifth, sixth, and 

 seventh interstices. 



Long. 10 mm. 



Hab. Brazil. 



This species presents nothing unusual in its form. It is 

 close to A . piliventris , Saund., but differs in the granulation 

 of the thorax and in the colour of the elytra. The thorax is 

 dark steel-blue. The punctuation is distinct and not very 

 fine, the punctures separated from each other by about two 

 diameters of a puncture. On the disk the punctures are 

 replaced by round distinctly raised granules. In A. pili- 

 ventris the punctuation is much finer, slightly asperate, and 

 there is an indication of transverse striolation. The elytra 

 are as in A. piliventris (not impressed at tlie apex as in 

 A. Childrenii and Parryi), and the thu'd, fourth, and fifth 

 costse remain parallel as in A. piliventris (not turned towards 

 the side as in A. Childrenii and Parryi). The coppery colour 

 occupies all the basal area, but extends posteriorly more 

 towards the sides, especially on the fifth, sixth, and seventh 

 costae. 



Paracastalia longipennis, sp. n. 

 Dark cyaneous, with green tint. Thorax strongly and 



