224  THE CANADIAN ENTOMOLOGIST. 



known from Kiiigii by the third joint of the antennae being distinctly 

 longer than the second, as well as by the quite different colour when alive. 



(3.) Ripersia flaveola, n. sp.— ? . Rather slender, about i>^ mm. 

 long, colour about a light French yellow when alive (Mr. King informs 

 me); antcnnje slender, 6-jointed : 6 longest, a little longer than 4 + 5 ; 2, 

 3 and 4 subequal, 4 a little the shorter, but quite remarkably long, fully 

 twice as long as broad ; i next longest, then 5, which is a third longer 

 than broad ; 3 has a deep constriction at its distal third, so that it looks 

 as if there were 7 joints, with a very small 4th, broader than long ; 6 

 with three whorls of hairs. Legs slender, except femur, which is fairly 

 stout. Tibia about as long as femur, tarsus about two-thirds length of 

 tibia. Claw rather long, fairly stout, not much curved, with a small sub- 

 basal tubercle on its inner side. Digitules apparently wanting. Mentum 

 rather short, ordinary. 



Another shows 7-jointed antennae : 4 dividing into two, so we have 

 4, 5 and 6 all short and equal, or about so, 5 a little the shorter. This 

 differs from 7-jointed R. lasii in being longer and slenderer, the sutures 

 between the joints nearly flat for the most part, 6 much narrower, 2 and 

 3 longer, especially 2, which is at least twice as long as broad. 



Hab.— Methuen, Mass., April 18, 1896, with Lasiiis claviger, Rog., 

 not common [G. B. King]. Differs at once from R. Tomlinii by the 

 antennae ; it is smaller than R. corynephari. 



(4.) Dactylopius prosopidis, n. sp.— $ . Oval, about 2 mm. long, 

 pale gray, varying to dark slate-gray and pale brownish-gray, with a 

 sparse mealy covering, which is most dense along back and at sides, 

 leaving fairly well-defined broad subdorsal bands of a somewhat darker 

 colour, due not to pigment, but to the exposure of the body. No caudal 

 or lateral cottony filaments, except in half-grown individuals, which show 

 six short cottony caudal tufts. ^ 



The females live in siibspherical masses on the twigs, after the fashion 

 of D.fihimentosiis, and are attended by ants. The ? forms a dense cushion 

 of white cottony matter, on which it rests ; this cushion is visible all 

 round the margin of the insect, and does not at first protrude greatly 

 behind. In it are laid the very pale greenish-yellow eggs. Eventually 

 the females become dark slate-gray, and have a cross of white secretion on 

 the hind end. They at this period possess a Pulvinaria-like ovisac, pro- 

 jecting behind about as much as the length of a ? , but thick, its height 

 at the huid extremity of the ? being probably not less than the length 

 of the ? . 



