64 ^ THE CANADIAN ENTOMOLOGIST. 



fl 



Descrii'Tiox of Plate. 

 The photos for the plate were taken by Mr. Dwight Brainerd, Mont- 

 real. 



Figs. I and 2 are a natural pair of // rntila. 



Fig. 3 is a pupa of //. nitela. 



Fig. 4 is a gall of same, showing the opening made by the larva. 



Fig. 5, H. Stranientosa. 



All enlarged. 



CONTRIBUnOxXS TO COCCIDOLOGY.— II. 



BY J. D. TINSLEY, A. AND M. COLLEGE, MESILLA PARK, N. M. 



During the past summer 1 have had the opportunity, through the 

 kindness of Dr. Howard, of working over the unnamed material of the 

 genera Dactylopius, Ripersia, and Phenacoccus, belonging to the col- 

 lection of the Division of Entomology, U. S., D. A. I wish to record 

 here the identity of D. vastator. Mask., with D. filamentosus, Ckll., and 

 two species which I believe to be new. I hope in a subsequent paper to 

 give further notes on some of the other species found, and also to record 

 the new host plants found for a number of species. 



Dactylopius filamoitosiis, CklL, syn. Dactylopius vastator, Maskell. — 

 I have before me a considerable quantity of material, specimens as fol- 

 lows : Type material of D. fi/ame?itosus, Ckll.; material from Island of 

 Mauritius on Citrus sent by De Charmoy : and the following from U. S. 

 D. A., Div. Ent. : 7232 on Hibiscus, Richmond, Natal; 7706 on Orange, 

 Cape Town, Africa (Coll., Lounsbury); 5S20 on Tamarind and Citrus, 

 Honolulu, Sandwich Is. (Coll. Koebele). After carefully examining and 

 comparing individuals from each lot of material, I can find no character- 

 istic differences, and must therefore conclude that they are all one species. 

 Since Cockerell described filamentosus in 1893 (The Entomologist, 

 Vol. XXVI., p. 268, Sept., 1893), and Maskell described vastator in 

 Trans. N. Z. Inst., 1894, p. 65, D. vastator, Mask., will have to stand as 

 a synonym of D. filamentosus, Ckll. 



The No. 5820 material is of considerable interest, it being topo-type, 

 and is that referred to by Maskell, loc cit. The most prominent 

 characters of this species are : the habit of aggregating into masses ; 

 the abundant white or yellowish secretions ; and when boiled in potash 

 staining the liquid a dark purple to blue-green and themselves turning 

 blue-green ; they are very hard to clear; the antennae are of 7 segments : 



