THE CANADIAN ENTOMOLOGIST. 325 



different in shape. The finger bears three long bristles, one standing at 

 the ventral corner and two above it ; they are broken in our only speci- 

 men. Tlie ninth sternite (IX st.) is also very different from that of Ct. 

 seleiiis, being much broader. It bears three bristles at the ventral edge, 

 and many small hairs, as shown in the figure. 



Length, 2 mm. 



We have one $ taken off Mustela sp. at Blackfalds, Alberta, 

 Canada, on the loth Jan., 1901, by Mr. A. D. Gregson. 



NOTES ON THE YOUNG LARV^ OF SOME SPECIES OF 



PULVINARIA. 



BY GEORGE B. KING, LAWRENCE, MASS. 



Shortly before the destruction of my laboratory in 1903, I began to 

 study some of the young females of several species of Coccidce, for the 

 purpose of determining if there were any constant structural characters 

 present that would enable one to identify tlie adult female scale, and if 

 there were any characters that could be used to separate closely-allied 

 forms, also what characters could be used in the classification of the 

 several genera. In the following species of Pulvina?'ia all are light 

 yellow in colour, elongate oval ; the marginal hairs are alike, the anal lobes 

 do not project beyond their body ; six bristles to the anal ring, and six 

 jointed antennae, all very much alike, the first usually short, with the third 

 and sixth longest. The larvae studied were dead, dry examples, hatched 

 in confinement, and may have been in some instances of a different colour 

 than yellow, but turned so after long standing. 



Fu/vinaria Ti?isleyi, King, 1900. — Unfortunately, but one poor 

 example was found. The antennae showed 6 joints : (i) 16, (2) 16, (3) 

 32, (4) 16, (5) 2C, (6) 40. 



Pulvifiaria occidentalism Ckll., 1894. — Boiled in i:)Otash, very dark 

 brown, internal juice removed colourless, 460 long, 270 broad. Legs : 

 coxa 36, femur -I- trochanter 64, tibia 52, tarsus 40, rostral loop stout, 

 160 long; bristles of the anal ring 40 long. Anal lobes with one long 

 bristle and two short simple spines 12 long. Antennal joints : (i) 20, (2) 

 16, (3) 36, (4) 20, (5) 24, (6) 28 ; the hairs on the several joints are quite 

 long. 



Pulvifiaria Cockerel li. King, 1899. — Length. 136; breadth, 200. 

 Antennal joints : (1)20,(2)12, (3) 32, (4) 16, (5) 20, (6) 32. Leg: 



October, 1906. 



