154 



PSYCHE. 



[January, 1901. 



and new to North America. The food 

 plant is also new for this scale. 



5. Lecaiiiiim hemisphaericum Targ. on 

 a fern {Nephrohpis tuberosa) , and a vine, 

 in the greenhouse. These food plants 

 are new. 



6. Lecanium oleae Bern, on a small 

 shrub out of doors, and is new to Mass. 



7. Lecanimn sp., very much like L. 

 oleae, but not that species ; only two 

 found, and not sufficient for study ; was 

 found on Cycas rcvoliita, in the green- 

 house. 



8. Lecanium tessellatum Sign. This 

 was the most prolific species met with, 

 on the following greenhouse plants. 

 Palms : Chamaerops Martiana, Rhopis 



flabelliformis. Phoenix Onslcyana., P. re- 

 c/inata, P. paludosa, Areca Alicae, Rho- 

 palostylis Baueri, Caryo/a itrens, Kentia 

 Forsteriana, A'. Wendlandiana, Cham- 

 aerops Port/mei, Hyophorbe Verschaf- 

 felti, Asttoatryiim mexicaniim, Arenga 

 Wightii : other plants : Monstera delici- 

 osa, and Gartncra racemosa. These are 

 all new food plants. 



9. Lecanium fletcheri Ckll., on Thuja 

 occide/italis, var. This species was de- 

 scribed from Ottawa. Canada, in 1893. 

 In February of this year I received some 

 scales on T. occidentalis from Vienna, 

 marked " new species." Upon examina- 

 tion, however, they prove to be L. 

 Hetcheri Ckll., identical with those 

 which I received from Dr. Fletcher. 



10. Pulvinaria innumerabilis Rathv., 

 on Aesculus plai'a, a new food plant. 



J I. Aspidiotus rapax Comst., on Co- 

 prosma Baueriana. New to Mass. ; the 

 food plant is also new. 



12. Hemichionaspis aspidistrae Sign., 

 on Davailia tnoorei, a fern in the green- 

 house. The coccid is new to Mass. 



13. Mytilaspis ubni L., on Syringa 

 persica^i a new food plant. 



14. Aulacaspis elegaus Leon., on Cycas 

 revoluia, in the greenhouse. 



15. Aulacaspis rosae, on Rosa lucida. 



1 6. Dactylopius citri Risso, on CalHs- 

 temon lanceolatus , a new food plant. 



17. Dactylopius longispinus Targ., on 

 Nephrodium amplum, in the greenhouse. 



18. Dactylopius nipae Mask., on an 

 unknown plant in the tropical green- 

 house. This is new to America. 



19. Diaspis ?ninima Targ., on Biota 

 {Thuja) orientalis., from China. The 

 coccid is new to America. 



There yet remain a few more species 

 not yet determined, which will be pub- 

 lished in a subsequent article. For a 

 list of scale insects previously recorded 

 from the Harvard Botanical Gardens, 

 see Canadian Entomologist, 1899, pp. 

 140, 227, 227, 228, 229, 252, and for 

 those recorded from Cambridge other 

 than the above and might perhaps have 

 been found in the greenhouse of the 

 Botanical Garden, see the same journal, 

 1899, pp. 109, 139, and 140. 



