214 Mr. F. P. Pascoe on new Genera and 



Phycosecis atomaria. 



P. breviter ovata, nigra, squamulis albis sparse irrorata, antennis 

 pedibusque piceis ; fronte minus sulcata; prothoraee pone medium 

 latiore, puuctis sparsis singulis squama repletis ; elytris sub- 

 rotundatis, haud seriatim puuctatis, punctis singulis squamulam 

 albam elongatam erectam gerentibus ; corpore infra pedibusque 

 sparse albo-setosulis. Long. 1| lin. 



Hah. Great Barrier Island ; Kaikarua. 



The silvery white, small, erect scales dotting the elytra 

 will, inter alia, readily distinguish this species from the 

 preceding*. 



ACTIZETA. 



Caput transversum, antice rotundatum. Antenna} validiusculae, 11- 

 articulatse, articulis duobus basalibus ampliatis, aequalibus, tertio 

 minore, caeteris ad octavum valde transversis, gradatim incrassatis, 

 tribus ultimis clavam oblongam formautibus. Oculi liberi. Palpi 

 maxillares articulo ultimo breviter subcylindrico. Prothorax 

 transversus, convexus, lateribus haud ciliatus, basi rotundatus, 

 antice late emarginatus. Elytra breviter obovata, prothoraee vix 

 latiora. Tibial anticse dilatataa, extus profunde emarginatae, lobo 

 elongato terrninatse, angulo interiore spinis duabus instructo ; 

 tarsi lineares, antici liberi, intermedii et postici elongati. 



There are two species of this genus : one, A. ammobioides, 



* Phycosecis algarum. 



P. breviter ovata, supra pedibusque fulvo-testacea, squamulis minutissimis 

 albidis dense tecta ; capite castaneo vel subcastaueo ; antennis pallide 

 ferrugineis ; prothoraee subtransverso, marginibus lateralibus longe 

 albo-ciliatis ; elytris subrotundatis, punctis numerosis, singulis squama 

 pallida repletis, sat conferlini impressis ; corpore infra pedibusque sub- 

 tiliter sparse setosulis ; tarsis articulo ultimo apice nigro. Long. 

 If lin. 



Hah. Melbourne. 



Under a high power of the microscope the exceedingly minute scales 

 are seen to radiate from a common base ; the patches thus formed appear 

 under an ordinary lens to look like simple scales closely imbricated. 



Phycosecis litoralis. 



P. ovata, fusca, supra squamulis minutissimis albis sat dense tecta ; an- 

 tennis, marginibus elytrorum pedibusque ochraceis, albo-setosulis, 

 femoribus ahquando nigris ; corpore infra dense albo-squamoso. Long. 

 1| lin. 



Hah. King George's Sound. 



In this species the punctures are filled with very minute scales, and pro- 

 bably in a fresh state the intervals between the punctures are also covered 

 with scales ; beneath the scales appear to be massed together in pro- 

 fusion. 



