19H]. 197 



A NEW BEITISH COCCID (KUWANIA BBITANNICA). 



BY E. ERNEST GREEN, F.E.S. 



Camberley, being a pine, birch, and heather country, I have been 

 scrutinizing these plants, to note the Coccid fauna associated with 

 them. I have, so far, found nothing on the pines. On the ling I have 

 seen an occasional example of Mytilaspis ulmi (pomorum), and — on an 

 ashy-leaved Erica — an Eriococcvs which will probably prove to be 

 E. devoniensis (hitherto recorded from Budleigh Salterton only). 



The birches have produced Aspidiotus ostreseformis, Pulvinaria 

 vitis, and an extremely interesting species that proves to be not only 

 an addition to the British fauna, but also new to science. The dis- 

 covery is the more interesting in that the insect belongs to a sub- 

 family (Margarodinse) of which there have hitherto been no repre- 

 sentatives in the British Isles, and to a genus (Kuwania) of which 

 the two known species occur in Japan and Ceylon respectively. 



Kuwania britannica, sp. nov. 



Adult female (fig. 1) elongate, parallel-sided ; cephalic extremity narrowest 

 and tapering, posterior extremity ronnded ; abdomen considerably longer than 

 head and thorax together. 



Antennae set close together on the extreme anterior margin. S-jointed 

 (fig. 2), or 9-jointed by subdivision of the apical joint (fig. 3) ; the basal 

 joint large and broad, fleshy, with a mucronate chitinous plate on its tinder 

 surface. Other joints narrower, rigid, subfusiform ; 2nd and 3rd broader than 

 long ; 4th approximately as long as broad ; others longer than broad, narrowing 

 to the base ; 5th, 6th, and 7th approximately eqtial ; 8th much longer than 

 preceding six, but rather shorter than the large basal joint. Sometimes the 

 terminal joint has an incomplete division, bisecting it transversely (fig. 3). 

 All the joints, except the 1st, with a circlet of stout setae at their distal 

 extremities. 



Eyes conspicuous, marginal, immediately below the base of the antennae, 

 in a chitinous plate (see figs. 1 and 2). 



Legs well developed. Femur and trochanter together a little longer than 

 tibia ; tarsus about two-thirds length of tibia. All the joints with a few stout 

 spines, principally on their inner areas. Claw (fig. 5) falcate, broad at base ; 

 the terminal half demarked by an incomplete division simulating a joint ; the 

 broad basal part encircled by a series of from 8 to 10 long stout clubbed 

 digitules. 



Spiracles conspicuous, circular ; eight on each side, of which two pairs 

 open on the venter of the thorax and six pairs on the dorso-lateral area of the 

 abdomen. Each segment with a median band of small circular grandular pores 



