159 



on them, but for several reasons it is interesting to learn what takes 

 place under cultivation as well as in a state of nature. From an eco- 

 nomic point of view, especially, facts of this kind may be of impor- 

 tance, because it may well happen that a destructive scale is brought 

 into a country on a plant of small value, whence sj)reading, it attacks 

 other species which form the staple crops on which the welfare of the 

 population depends. 



Much of the material examined was collected by my assistant, Mr. 

 F. Da Costa; in every case, when I did not obtain the material myself, 

 the name of the collector is given, 



(1) Achras sapota L. (Sapotacete). — In June Mrs. Swainson told me she had found 

 Vinsonia steUifera Westw. on this species in Kingston; later, Dr. Plaxton sent some 

 leaves, with many V. steUifera on their under sides. 



(2) AnacardUim. occidentaJe L. (Terebinthaceae). — A leaf picked in Kingston (Mrs. 

 Swainson) in June had on its upper side a few Aspidiotus articulatus, Movg.; there 

 were also on the leaf a few Aspidiotus personatus, Comst., a very young Ceroplastes 

 {gray, with white center and fourteen white rays) and a very young pale greenish 

 Lecaniiim. 



(3) Artocarpus hicisa h.f. (VTticaceiB).— On June 9 I found leaves of Breadfruit 

 in Manchester Square, Kingston, with many Aspid. arHculafits and A. ficus Riley on 

 them ; on one leaf the two species were crowded together in one or two places, leav- 

 ing the rest of the leaf almost free. 1 found also some A. personatus. 



(4) Areca catechu L. (Palma^-). — A young plant growing in a pot at Cavaliers, Pen., 

 September, 1892, had on the upper side of its leaves many Asp id lot us ficus and several 

 A. aurantii Mask. ; also a few Lecanium hemispluericum, Targ. The presence of A. au- 

 rantii and the absence of A. articulatus is noteworthy. Mr. Coquilletthas also found 

 the Red Scale on palms (Bull. No. 26, Div. Ent., p. 15), and as these are often taken 

 from one country to another in pots, the possibility of so increasing the range of A. 

 aurantii should be considered. 



(5) Anthurium lanceolatum Kth. (Aroidse).— In Dr. Strachan's garden, in Kingston, 

 I find the leaves infested with Ceroplastes floridensis Comst., Farlatoria, and Leca- 

 nium. The Lecanium is a dull greenish flat species like hesperidum, with (at least in 

 juv.) the sides of the posterior cleft contiguous and the margin with short simple 

 hairs; anal plates yellowish with brown tips; eyes black, very distinct, placed close 

 to margin. 



(6) Brunfelsia americana, Sw. (Solanacew). — Leaves gathered in the Parade Garden, 

 Kingston, June, 1892 (Da Costa), had ou their upper sides several Aspidiotus articu- 

 latus, and one juvenile Ceroplastes, apparently /fojvriensis. 



(7) Cassia fistula, L. (Leguminosa?). — Leaves from the Parade Garden, June (Da 

 Costa), had on their upper sides plenty of Aspidiotus articulatus, also a few A. person- 

 atus, which seemed not to be thriving. 



(8.) ChrysophyUum cainito, L. (Sapotacese). — In Manchester Square, Kingston, I 

 found Aspid. articulatus on the upper sides of the leaves; afterwards (June 14), in 

 Duke street, I found A. articulatus, A. personatus, and Pnlvinaria cupaniw, Ckll. MS. ;* 

 also, a few specimens of a small Diaspis or Chionaspis, which I did not study. 



* Details of this species will be published later. It is very common on Akee (Cu- 

 pania edulis, Camb.), in Kingston. The <? , before they produce their egg sacs, are 

 green, active, and resemble in shape the flat species of Lecanium. Length of ^ 

 with egg-sac about 5 mill. Antenuie 8-jointed; third much longest; fourth as long 

 or a little longer than second ; fifth a little shorter than fourth ; sixth, seventh, eighth, 

 subequal, eighth shortest of all, a little elongate; second, fifth, and sixth joints each 

 with a long hair. Tibia about twice length of tarsus. 

 9673— No. 3 2 



