The Zoologist— August, 1866. 321 



Watevliouse has longer anteimaB, but they are terminated by a compressed truncate 

 club curved inwards al the apex. The two species before the Society have also long 

 antenna, but gradually enlarging- from the base to the apex, in one of them, however, 

 expanding rather more rapidly when approachiuj,' ihe tip; one is from Mr. Odewahn, 

 of Gawler, South Australia; the other from the Rev. George Bostock, of Fremanlle, 

 West Australia ; they may be thus differentiated :— 



Arlicerus Odewahnii, n. sp. 



A. pallida ferrugineus; capite prothoraceque subtiliter punctulatis ; anteuais 



basin versus abriipte anguslioribus. 

 Long. liu. |. 

 Uab.— Gawler. 



Articerus Bostockii, n. sp. 



A. rafo-testaoeus, elyiris dilutioribus; capile prothoraceque subcrebre puactatis; 



antennis basi seiisim angustioribus. 

 Long. lin. 1. 

 Hab. — Fremantle. 



" The former has compressed antennae, as may be seen by the section presented at 

 the apex, whilst in the latter it is nearly or quite round. A. Odewahnii also has the 

 head considerably smaller in proportion, and if examined sideways it will be found to 

 be of nearly equal depth throughout; but the larger head of a'. Bostockii begins to 

 diminish under the eyes, and is drawn rapidly up so as to be scarcely more than half 

 the depth at the apex. The elytra of A. Odewahnii are much stnalkr than those of 

 the other species. In neither do the tibise present any appearance of angularity or 

 toothinir, but this may be because they are both females. Mr. Du Boulay thinks the 

 antenna are fexib/e, hut in this Mr. Bostock does not agree. Referring to the 

 species which I have named after him, Mr. Bostock writes as follows:— ' The first 

 caught was found (when disturbed ?) on his back, and two ants at once seized him to 



carry him to a place of safely I saw another on a slick protruding from 



an under-ground nest, and as I approached nearer to capture it I plainly saw two 



ants, one on either side, seize it and hurry it down the hole The latter 



specimen caught was resting with his body inclined at an angle of about 30°, and 

 was bowing his head vertically and his antenna laterally in a m.ist amusing manner.' 

 Mr. Bostock thinks there is a 'bag of anl-liquid beneath the fovea' (cavity on the 

 abdomen .■')." 



Mr. Pascoe also exhibited a small collection of Coleoplera from Fremantle, placed 

 in his hands by the Rev. Hamlet Clark, to whom it had been sent by the Rev. George 

 Bostock. In addition to the species of Aiticeius above described, the collection 

 included Antliicus striclus, Er., and two probably new species, found in ants' nests, 

 being, as Mr. Pascoe believed, the first instance of an Anthicus occuriing in such a' 

 situation; a beautiful new species of Ptiuus, Mezium sulcatum, two new species of 

 Hyocis, Suopodes boops, £r. ; two species of Platynotus, one certainly and the other 

 probably new; a Cryptophagus, two species of Brachypeplus, a Scymnus, Uloma .?, 

 Plat} soma, &c. ; an insect of unknown genus of the size and outline of Corticaria ser- 

 raticoUis, Duval, but with very peculiar tarsi ; and a new Mecynotarsus, of which the 

 following diagnosis was read : — 



SECOND SERIES — VOL. I. O j 



