THE CANADIAN ENTOxAIOLOGIST. 



the last abdominal segments. Sides with rows of spinneret spine areas. 

 Antennae 8-jointed in some, 7-jointed in others, nearly concolorous with 

 the body. Joint 8 longest; next is 2, joint r usually next, although 3 

 may be longer ; 5 next, always appreciably longer than 7 ; 6 may be 

 either shorter or longer than 7 ; 4 always shortest. 



Many of the antennae are 7-jointed through failure of the 3rd to 

 divide ; the 3rd is always then quite long. Formulae : 

 8-jointed = 82135764. 

 7-jointed = 732 1456. 



The joints of the antenna; bear very long, rather stout, hairs. 



Legs stout and quite hairy. Femur shorter than tibia. Tibia, 215 //, 

 long. Tarsus, 1 10 /^ long. Claw rather stout, 37 jj. long. Digitules of 

 claw fine knobbed hairs reaching beyond claw. Tarsal digitules long 

 slender hairs. Caudal lobes small, rounding, with one very long (200 //.) 

 stout bristle and several shorter ones, also numerous round glands. Anal 

 ring large, with 6 m.oderately long hairs. 



Hab. — In ants fiests on the roots of Artemisia,?>]). Thurber's Camp, 

 Grand Canyon of the Colorado, Arizona. 



[Antennal formula approaches that of D. soiani, Ckll., but the great 

 hairiness of the body and antennae readily separate it from that species. — 



J. D. TiNSLEY.] 



Kermes Pettiti, n. sp. 



9 scale about 4 mm. broad, 3 mm. long, and 3 mm. high, dark 

 purplish-brown ; some individuals of a lighter colour and marbled with 

 brown. A distinct longitudinal groove on the meson indicated by a dark 

 line. Surface without minute black specks. Segmentation not very 

 distinct, indicated by rows of black spots plainly seen through a pocket 

 leas. Ventral surface, where it touches the bark, flattened and more or 

 less covered with a yellow secretion. Beak very prominent. When 

 removed from twig scale leaves a whitish powder. When boiled in 

 K. H. O., derm colourless, except numerous brown spots with black 

 centres scattered over the dorsum. Antennce very obscurely 6-jointed, 

 joint 3 apparently longest. Legs very small and stout. Tibia as broad 

 as long, with a stout spine. Femur and tibia about equal. Tarsus nearly 

 twice as long as tibia. Claw straight. 



Hab. — On Qnercus, sp.; Ithaca, N. Y.; sent to me by Mr. R. H. Pettit 

 as K. galliformis, Riley. I take pleasure in naming this species after the 

 collector. Specimens have been examined by Mr. Cockerell, who agrees 

 that they represent a new species. 



