86 



[April, 



? adult very active, constructing ovisac at period of i^esta- 

 iion ; mealy, but without marginal appendages ; segmentation 

 distinct ; form rather short, ovate, anal extremity emarginate. 

 Anal lobes indicated by a single hair. Anal ring of 6 long hairs, 

 intervening spaces with irregular ovate glands. Dermis thickly set 

 with circular spinnerets, forming broad bands on the abdominal 

 segments ; there are also numerous short hairs, but these are much 

 fewer in number than the spinnerets. Antennse (fig. 13) of 8 

 joints, of which the last is much the longest ; formula, 8, 1, 2, 3, 

 4 (5, 6, 7), all the joints with fine hairs. Mentum biai-ticulate, 

 rather pointed, joints with minute hairs on both surfaces. Legs 

 rather long, hairy ; digitules to claw slightly dilate, tliose of the 

 tarsi simple. Long., 1-50—2 mm. 



Hah. : on the lower stem and roots of Lepigomim 

 riq)estre, Guernsey, " near the west coast of tbc Island," 

 September, 1899. Discovered by Mr. W. A. Luff. 



Accompanying tbe specimens Mr. Luff sent the following par- 

 ticulars : — " I herewith enlose Coccids (JRipersia?) found at roots of 

 Lepigonum rupestre, not under stones, but in sandy soil. They occur 

 in such thick clusters, and are so lively, that T thought they might 

 possibly be something new" {in lift.). The agility of these little 

 " mealy bugs " was quite remarkable, and certainly not equalled by 

 any other Coccid I have observed. From this habit and their small 

 size, I thought it possible they might be immature, but I found 

 several had already begun to " spin," and in the course of a week or 

 so the rest of them had constructed their ovisacs ; most of them on 

 the roots of the Lepigomim, which became quite white with them, 

 and many others on the sides of the box in which they were im- 

 prisoned. 



This minute species is apparently new, and I have much pleasure 

 in dedicating it to its discoverer, Mr. W. A. Luff, whose work on the 

 fauna of the Channel Islands is well known and appreciated. 



Dacttlopius fobmiceticola, n. n. 



Dactylopius formicarius, Newst., Ent. Mo. Mag., 2nd ser., vol. xi, p. 

 249, October, 1900. 

 The name D. formicarius comes too close to Dactylopitis formicarii, 

 Ehrhorn (Canad. Ent., vol. xxxi, Jan., 1899, p. G), and must be sup- 

 pressed. I regret I had not seen it was pre-occupied until my attention 

 was called to the matter. 



Chester : January, 1901. 



