i86 



Appendix. 



latter and the third lobes, and usually four much broader ones beyond 

 them, followinp' which are three or four tuberculate plates resembling 



Pig. 29. — Diaspis squamosus, n. sp. 

 1. Lateral margin of ahdomiual segment. 2. Margin of pygidium. 



those on the abdominal segment, but they are smaller. Margin finely 

 crenulated. Circumgenital glands in five groups ; formula of three 

 examples : — 



(17 16 j I 16 18 I j 14 17 I 



20 16 / \ 14 1.3 / \ 17 14 / 



Dorsal tubular spinnerets short, numerous, broadly and irregularly scattered 

 along the margins. 



Margin of lower portion of the thoracic area and also the unarticulate 

 abdominal area with many short, capitate, tubular spinnerets, minute hairs 

 and short tubercular processes. Rudimentary antennae placed near the 

 margin in front, each with a short slender curved spine. Below the 

 antennae, and towards the margin on each side, is a small and rather 

 scattered group of minute tubercles (? spine bearing). Rostrum normal ; 

 mentum extremely small ; filamentous loop scarcely extending beyond the 

 latter. Length O- 75-1 mm. 



Habitat, on peach and pear (Fletcher), Gizeh, Egypt, 1903. 



Notes. — The salient characteristics of this species are the prominent 

 plates or squames at the upper part of the margin of the pygidium in the 

 9 , and the strong thick ventral scale or pellicle of the puparium. 



In the absence of the male puparia it has been rather difficult to fix 

 the generic position of this species, but the arrangement and character of 



