450 Monophlebino'. 



Genus ASPIDOPROCTUS, Ne-vsf. 

 Aspidoproctiis^ Newslead, Proc.Zool. Soc. Lond., p. 948 (igoo). 



Characters of the female as in IValkeri'aiia, from which it differs in the 

 presence of a deep invagination t)f the venter, closed by a stout waxy or felted 

 operculum. 



Males of ^. tnaxiiiius (the only species of which this sex is known) are very 

 similar to those of MonopJihlnis. They have tri-nodose antennal joints, each 

 node with a whorl of long hairs ; and the abdomen terminates in a pair of 

 elongate, wrinkled, setose fleshy appendages. 



Larvce with five-jointed antennae. 



The type of the genus '\s pertittax, from Central Africa, The genus has the 

 distinction of containing the largest known Coccid — Aspidoproctus viaxhinis — 

 a comparatively gigantic species from South Africa. 



The two species here described are very closely allied to each other, and may 

 possibly be forms of a single species. They are separable by their size and 

 colour only. 



Female very large ; colour cinereous grey cinerea. 



„ comparatively small, colour of waxy appendages white euphorbia'. 



ASPIDOPROCTUS CINEREA, Green. 



(Plate CLXXXVIII.) 



Walkeriana ci?ierea {sine descr.), Mem. Dep. Ag: Ind., Vol. II. (2), p. 18 (1908). 



Adult female {/ig. i) varying greatly in size ; the smallest examples — though 

 fully mature and containing eggs and young larvte in the marsupium — being 

 scarcely half the size of the largest. The body is strongly convex behind — 

 above the abdomen — but usually abruptly depressed in front. The dorsal 

 surface is closely covered with ashy-grey granular secretion between the widely 

 separated series of stout, tapering, curved waxy processes, which may be banded 

 either longitudinally or transversely (or both) with brown. The several series 

 may be distinguished as a double medio-dorsal, of which the hindermost three 

 or four pairs are usually coalescent ; on each side of which is a dorso-lateral 

 series, meeting behind at the anal orifice ; followed by a lateral overlapping a 

 marginal series. The processes of the last two series are usually longer than 

 the others. Venter of abdomen deeply concave below ; the cavity covered by a 

 pad of waxy matter, forming a marsupium for the reception of the young larvre. 

 Antennae {/ig. 3) ten-jointed ; each joint with a circlet of setae at the distal 



