42 THE ENTOMOLOCrlST. 



Chrysis arrestans, n. sp. 

 ? . Head and thorax coarsely, abdomen finely punctured ; head 

 and thorax very slightly narrower than abdomen ; clypeus emarginate 

 anteriorly ; a well-defined sinuate transverse ridge below anterior 

 ocellus, and the front below it concave, with sparse Avhite pubescence, 

 under which is finely punctured ; head, viewed from above, nearly 

 twice the size of pronotum, the latter with a median longitudinal 

 depression ; 1st abdominal segment almost impunctate in the centre, 

 2nd segment with a median longitudinal carina, 3rd segment sex- 

 dentate, the teeth sharp, and with a subapical row of fovese. Dark 

 blue-green, with a purple tint in some lights ; the clypeus, mandibles 

 at base, and scape of the antenupe bright metallic green ; mandibles 

 black in the centre, red at apex ; 2nd abdominal segment green at 

 apex; antennae and tarsi dark red, almost black; wings hyaline, 

 tegulsB purple, radial cell. not quite closed. Long. 6 mm. 



Hab. Deesa ; a single specimen. 



Chrysis orientalis (Gner.). 

 This species, which is common at Deesa, varies very much 

 both in colour and size. M. du Buysson says, in the Journal of 

 the Bombay Natural History Society, vol. x., p. 477, that " le 

 2" segment abdominal porte de chaque cote, a sa base, une petite 

 tache bleu-fonce." This is by no means invariably the case, 

 and quite half my specimens are without this spot. In length 

 this species varies from 6*5 to 13 mm., and in expanse from 

 13 to 24 mm. 



ON THE MORPHOLOGY AND CLASSIFICATION OF THE 

 AUCHENORRHYNCHOUS HOMOPTERA. 



By Dr. H. J. Hansen. 



(Continued from vol. xxxv. p. 263.) 



Of the division of the Auchenorrhyncha into these four 

 families, which was proposed by Stal with a subtle systematic 

 insight, but which, as a matter of fact, not a single subsequent 

 author has accepted, I have now drawn up the numerous 

 exclusive characters — brought forward in this conspectus — so 

 that its prevalency may be considered as in some degree proved, 

 and it ought perhaps to result that in future not many 

 systematists will arbitrarily erect new families on a basis of a 

 somewhat peculiar habitus. It is also my conviction that even 

 in view of the possibility of one or other of these characters not 

 proving so exclusive as I have thought, in researches upon a con- 

 siderable exotic material, an extended study of the structure of 

 these insects will give so many new characters for the same 

 families, that the loss will be more than compensated for, con- 

 sequent, of course, upon the supposition that real links, unknown 



