THE CANADIAN ENTOMOLOGIST. 183 



forward, thickly pilose. Prothorax and mesothorax fused into one, but an 

 effaced suture visible between them ; thickly pilose. 



Legs : First pair shortest, 3rd longest. All tarsi single-jointed, claws 

 long, simple, slender, subapical, extending as far again from the tip of the 

 tarsus as the tarsus projects beyond the insertion of the claw. Coxee and 

 trochanters much elongated in the third pair. First tibite with two 

 combs, second with one, apically situated ; third tibia with a long stout 

 subapical spine. First pair of legs, femur longest, then the tibia, then the 

 tarsus, which is stouter than the other two ; second pair as the first ; third 

 pair, tibia longest, femur next and stoutest, then tarsus, which is more 

 slender than either ; all covered with long hairs. 



Abdomen oval, segments well marked, genital segments prominent ; 

 all the segments dark, except at the connexivum, which is wholly light ; 

 eight apparent segments. The spiracles are seemingly not to be found in 

 this instar, not being visible in either the entire nymph or in the cast 

 skins mounted in balsam, even at a magnification of 530. This, of course, 

 is not a proof that they do not exist, but rather shows how well they are 

 concealed. 



Dimensions: Length, .75 mm.; width, .42 mm., measured from 

 living bug. 



After five days the tiny bug moulted the first time. 



Nymph. — 2nd Instar: Proportions of head: long.: lat.:: 7: 10: 

 eyes : vertex:: 14 : 32 : 14 ; antennal joints, 1:8: 9 : 20; rostral joints, 

 9: 3 : 13 : 10. 



The rostrum extends to the base of the presternum, or to the insertion 

 of the first pair of legs. 



Prothorax, bt.: long. :: 38 : 6. 



First pair of legs stouter than the other two ; the tarsal combs of the 

 first and second pair as before ; the third tibite armed with a stout double- 

 pointed spine, apically and exteriorly, and some stout scattered spines 

 interiorly, beginning half-way up the tibia. Tiie end of the tarsus extends 

 beyond the middle of the claws. 



The abdomen and other details omitted are as in the first instar. 



Dimensions: Length, .9 mm.; width, .55 mm, taken from balsam 

 mount of nymph. 



In four, five and six days respectively, the nymphs moulted the 

 second time. 



Nymph. — 3rd Instar: Proportions of head : long., lat.:: 23: 35: 

 eyes: vertex:: 7: 21: 7; antennal joints, 12: 10: 11: 21; rostral 



