1916.] yg 



Melaiiclryidae, iiear Symphora, with which it is connected by inter- 

 mediate forms. Some of these latter, however, require further study, 

 but the available material is much too scanty for the purpose. M. niti- 

 duhis Champ., superficially resembles the N. American Mallodrya 

 suhaeiiea Horn, except that it is very much smaller and more slender, 

 and has a narrower prothorax. The o-euus has been recorded from 

 Japan, and an insect found by Mr. Andrewes in the Nilgiri Hills, 

 India, too imperfect to describe, may belong here. 



Melandrtina. 



Prothalpia Lee. 



In Ent. Mo. Mag., LI, pp. 139, 140, the N. American Dircaea 

 liolmbergi Mann. (=Hypulus fulminans Lee), was stated to be a 

 Marolia, on the authority of Hamilton (Canad. Entom., 1892, p. 299), 

 Since the above remark was written, I have been able to examine a 

 specimen of Prothalpia undata Lee, and find that Mannerheim's 

 insect undoubtedly belongs to the same genus, and is, indeed, extremely 

 closely allied to P. undata. Marolia, therefore, unless H. fulminans has 

 been wrongly identified with D. hdmbergi, will have to be erased from 

 the American Catalogues ; the type of Marolia, M. variegata Bosc, 

 is an apterous insect, with a comparatively long prothorax and ovate 

 elytra. Specimens of P. holmhergi from Metlakatla and Queen Char- 

 lotte Island have been presented by the Eev. J. H. Keen to the 

 Museum. The genus Diegoa, type D. -picta, from Madagascar, is com- 

 pared by Fairmaire with H. fulminans Lee. 



Penthina. 



Penthb Newm. 



The seven known species of this genus are from N. America, 

 Japan, Sumatra, Java, and the E. Indies. An undescribed form in the 

 British Museum is so different from the others that it seems advisable 

 to name it, though the insect has no locality label attached. 



1. — Pe tithe metallica, n. sp. 



Oblong--oval, broad, rather convex, shining ; nigro-caeruleous above, brilliant 

 bluish-green beneath, the scutelliim cupreous ; head, prothorax, and scutellum 

 densely, finely, confluently punctate, the elytra closely impressed with intermixed 

 rather coarse, and very small, punctures, the larger punctures sub-seriately 

 arranged on the outer part of the disc and becoming much finer tow^ards the 

 apex ; the scutellum thickly clothed with adpressed ochreous hairs, the rest of 

 the upper surface with darker hairs, the uuder-surface cinereo-pubescent. Head 



