164 DIASPIS CARUEL1. 



Subdorsal groups of tubular spinnerets are repre- 

 sented by two isolated examples. 



The margin (Fig. 18, below) has but two pairs of lobes 

 placed at the somewhat truncate extremity ; median 

 pair, slightly widest posteriorly, have the margins 

 either rounded and entire, or slightly notched; the 

 second pair are bilobed, the anterior lobule usually the 

 smallest, and about one-third the width of the other. 

 The median pair of plates and the single one between 

 the median and second lobes very short ; seven others, 

 arranged along the margin at irregular intervals, 

 are much larger and very distinct. Median pair of 

 tubular spinnerets with sharp projecting spine-like 

 pores ; the remaining five on either side have rounded 

 projecting pores. There is a median group of six to 

 eight long slender tubular spinnerets, and a smaller 

 group near them. About six spines occur on each side 

 of the median lobes. 



Long. *50 mm. 



Puparium of male white ; tricarinate, central carina 

 strongest, those at the sides faintly indicated or entirely 

 obliterated. Exuviae pale yellow. 



Long. 75. 



Habitat. On Juniperus virginiana at the Royal 

 Botanic Gardens, Kew; which at present is the only 

 known habitat in the British Isles. 



The curator, Mr. G. Nicholson, who kindly supplied 

 the specimens, says " the shrub was raised at Kew in 

 1891, but whether from seeds or cuttings is not known. 

 It is from variety horizontalis an old collection plant, 

 and is probably from cuttings" (March, 1898). It is 

 just possible the insect may have been introduced, 

 prior to 1891, upon continental plants. In any case it 

 is a very hardy species, and has thriven most re- 

 markably in this country, the branch submitted to 

 me being almost covered with the insects. 



Easily recognised from other British species by its 

 small size and the scurfy nature of the scales, which 

 readily come away from the plant. 



