130 THE CANADIAN ENTOMOLOGIST. 



Jamaica) the second pair of lobes was also practically obsolete. The $ , 

 from Dominica, has well-developed wings ; it is dull yellow, with blue- 

 black eyes. 



So far, the species is distinct and easily recognized ; but there are some 

 allied forms, concerning which it is not easy to come to a sound judg. 

 ment ; I will discuss these under the head of A. diffinis. 



(6.) Aspidiotus affinis {diffinis), Newstead. Ent. Mo. Mag., 1893, 

 pp. 186, 280. This is evidently very near to pimicoe, but it differs in its 

 high, convex, greyish-brown scale, and in the absence of plates and 

 grouped glands. The presence of grouped glands has been shown by 

 Mr. Newstead to be an uncertain character in A. zonatus, Frauenf, and 

 I have found it equally so in A. desifudor, Sign., but the other distinctive 

 features seem of importance. 



There is a scale found in Jamaica, which I had named in MS. Aspi- 

 diotus ptmicne var. lateralis, but which I now believe must be referred to 

 difinis. The following description will serve for its recognition : — 



$ Scale I mm. diam. or a little over, convex, rounded, circular, or 

 nearly so, varying to oval, dull brownish-white, varying to brown, with 

 covered brown exuviae, resembling those of putiicce, but placed away from 

 the centre. Scale leaving a white mark when removed from the plant. 



5 Nearly circular, terminal portion yellow, the rest variegated pink 

 and blue in a peculiar manner. The lobes and plates as in typical pjmicce. 



$ Scale smaller, elongate with rounded ends and parallel sides ; ex- 

 uviae away from the centre. 



Hab. on stems of Jasminum pubesce?is, Parade Garden, Kingston, 

 Jamaica, Sept., 1892, collected by F. N. DaCosta. 



It will be seen that this var. lateralis resembles diffinis in the scale, 

 but differs in having distinct scale-like plates. 



On a tree in East street, Kingston, Jamaica (not identified, but has 

 pinnate leaves, leaflets 13, oblique, tips obtuse, emarginate), I found 

 numerous scales which seemed also referable to var. lateralis. They 

 were massed together on the petioles and stalks, mixed with a few 

 Aster olecanium pustulans. The scales agree exactly with A. diffinis as 

 described by Newstead, but most of them are parasitised, so that I could 

 not get very good examples of the female insect. Little bright red mites 

 were running about amongst them. The female, in this form, is bright 

 yellow to pale yellow, not pink and blue as in X\\t /astninum specimens. 

 The lobes are as in iy^icdiX punicce, and there are distinct, though narrow, 

 serrate plates, I failed to see any groups of ventral glands, 



