jg Robert Xewstead, l8 



paler; the whole more or less covered with a delicate farinose deposit. Ventral pellicle dense white sometimes 

 stained yellow. Diameter 1.50 — 1,75 mm. 



Female, adult. Widely rounded in front; sides of thoracic area very slightly narrowed posteriorly; 

 pygidium strongly defined; free abdominal segments not well marked. Antennae with 4 — 5 short stout 

 s p i n e s one of wliich is rauch larger than the rest. Posterior Stigmata without parastigmatic glands ; anterior 

 pair with three rather large glands. Pygidium strongly and irregularly reticulated. Anal orifice considerably 

 in front of the middle line. Margin of pygidium (PI. III, Fig. 5) with three pairs of large lobes, the third 

 pair almost as large as the median ; anterior to these are three prominent lobe-like extensions of the body-wall 

 with strongly dentate margins, beyond which there are several angular or tooth-like projections. Basal spine 

 very long, the others gradually shortening toward the bind margin. The distinguishing morphological 

 characters of this interesting coccid are the coarsely and irregularly reticulated pygidium, the large lobe 

 like extensions of the body-wall and the rather striking form of the puparium. 



Habitat: Südwestafrika, Klein -Namaland, Steinkopf, August 1904, L. Schultze. Food -plant 

 unknown, but evidently a monocotyledon. 



Aspidiotus iSelenaspidusi euphorbiae n. sp. (Xewstead). 



Puparium of female. Circular, thick, and opaque; exuviae central or subcentral; larval pellicle 

 golden brown to dark golden, yellow, covered with a white secretion, generally; second pellicle red-brown, 

 covered with secretion similar to that of the larva ; secretionary portion in two equal zones of pale ochreous 

 and white, the latter marginal. Diameter 1,75—2 mm. 



Female, adult With a well-marked thoracic articulation, constriction at sides great. Integument 

 not highly chitinised. Antennae represented by an extremely minute tubercle furnished with a long spinöse 

 hair at the base. Stigmata without parastigmatic glands. Pygidium with a clearly defined lingula- 

 shaped body of chitine on the ventral surface, the apex of which points towards the bind margin. 

 Circumgenital gljuids obsolete. Dorsal pores small, numerous, scattered over tlie whole of the pygidium. 

 Anal orifice placed a little posterior to the lingula-shaped body. Fringe of pygidium (PI. III, Fig. 6) 

 with two pairs of large lobes, the third pair obsolete. Squamae broad and digitate, these organs are not, 

 however, very clearly defined. 



Length 1,50 mm. 



Easily distinguished by the singular tongue-shaped mass of chitine on the pygidium. It is nearl)' 

 related to Selenaspidus magnvs Lindgr., but this species has the integument much more highly chitinised, 

 is slightly larger. has a very wide vaginal orifice and the tongue-shaped body is entirely absent. 



Habitat: Südafrika bei Riet Tinkas (südlich von Salem am Swakop), Sept. 1903, L. Schultze. 

 Auf Euphorbia atF. virosa Willd. 



Aspidiotus fSelenaspidusj schultzei n. sp. (Xewstead). 



Puparium of female. Circular, smooth and rather thin ; pellicles central yellow to yellowish- 

 brown; secretionary portion straw-coloured to ochreous white. 

 Diameter 1,50 — 2 mm. 



Female, adult. Strongly chitinised; thoracic articulation very distinct, constriction at sides deep ; 

 abdominal segments clearly defined by broad deep grooves terminating before reaching the margin ; there 

 are also several similar grooves on the thoracic region but they are very short and irregulär taking the 

 form rather of gland-tracts than true articulations. Pygidium (PI. III, Fig. 7) with three pairs of lobes; 



