1894.] 205 



Sac of the 9 very elongate, attenuated and often curved in front, composed of 

 a rather close white felting, looser in front, where it is sometimes tricarinate ; open 

 at the cephalic extremity, where the body of the ? closes it, but after gestation 

 the insect often drops out. Long., 3 — 675 mm. ; wide, 1"50 — 3'25 mm. 



Larva reddish-yellow, with numerous long waxy filaments on the dorsum, eyes 

 black (after death). Antennae of six joints, of which the 3rd is the longest, 2nd 

 shortest ; there are six or seven long hairs on the 6th, and one or two on the 4th 

 and 5th. Mentum very short, uniarticulate ; unexpanded filaments about three 

 times the length of those of the adult ? . Legs ordinary ; coxa and trochanter 

 each with a slender hair near the apex ; tibia and tarsus in length nearly equal, each 

 with a very long hair near the apex ; claw slender ; digitules to claw and tarsus 

 slender. Anal lobes dorsal, apex within margin, each with a very long hair, and two 

 or three shorter ones. Anal ring with six rather short hairs. Cleft deep. Margin 

 all round with strong spiny hairs, arranged close together in front, but wider at 

 margins and behind. 



Hah. : Guernsey, in ants' nests (species not determined). 



" Under stones, and also on roots of Nardus striata and Dactylis glomerata, on 

 the low north coast of the island. The stones were just on the edge of a beach, 

 part of which has been rolled up beyond the action of the tide. Under the same 

 stones were larvse of Platynapsis luteo-ruhra, which I at first took for Coccids, as 

 they were covered thickly with white flufp. They seem to be very local, * * 

 only occurring in a spot about fifty yards long. I searched the coast for a long 

 distance on either side without finding any more. I noticed that the ants did not 

 trouble about or carry any of them off, as in the case of Ripersia Tomlinii, 

 Newst."— Jm»€, 1893. 



For the foregoing information, as also for a liberal supply of 

 specimens, I am indebted to the discoverer, Mr, W. A. Luff. 



So far this is the only Coccid described as having a two-jointed 

 tarsus (and this only on the anterior legs), and it is for this reason 

 alone that I establish a new genus for it ; otherwise I should have 

 placed it in Licldensia, with which genus, although it is not strictly 

 conformable in its normal characters, it agrees more nearly than any 

 other. Mr. Maskell says "it requires, in my opinion, some very im- 

 portant featui-e to make a generic character when only one species is 

 known " (in lit.). Surely nothing could be more important than the 

 anomalous character of the fore-legs. The rest of the characters of 

 the ? , and all those of the larva, are strictly Lecanid. On comparing 

 the larva with that of Lecanium tilics, Lin., for instance, the only 

 appreciable difference will be found in the arrangement of the 

 hairs on the anal ring, a character that would hardly separate them 

 generically. 



The indentation on the intermediate and posterior tarsi of the ? 

 suggests articulation, and yet I fail to fiud the slightest trace of such. 



