76 THE CANADIAN ENTOMOLOGIST. 



ing to the inner margin. A sub-marginal somewhat diffuse brown band 

 crosses both wings. A marginal row of triangular, intervenous, black 

 dots. Fringe concolorous with the wings. Discal dot on hind wings 

 brown, distinct. Veins beneath tawny and very distinct, between which 

 the. white and brown scales are nearly equally distributed, except that the 

 brown predominates somewhat near the costa of the fore wings, and the 

 white near the outer margin of hind wings. Discal dots dark brown, dis- 

 tinct. Legs concolorous with body and wings. Length of body 0.45 ; 

 fore wing 0.58 ; expanse of wings 1.18 inches. 



, Judging from Mr. Packard's description of P. neptata, this species 

 seems more nearly related to that form than any other. 

 Described from one female taken in Elko, Nevada. 



NOTES ON ANT LIONS. 



BY J. ALSTON MOFFAT, HAMILTON, ONT. 



As my former notes on the Ant Lions were of interest to some of your 

 readers, perhaps a few additional particulars on the same subject may not 

 be objectionable to them. Having had another opportunity of observing 

 their habits, I made the best use I could of it. The abdomen of the 

 nymph is somewhat heart-shaped, flat beneath and very much rounded 

 above, thickest near the thorax, and sloping off suddenly to the sides and 

 tail, which is an acute point. The thorax is long, and with the head is 

 narrow and flat above, a form no doubt well adapted to its requirements. 

 Its mode of travelling is backwards, always " advancing to the rear," one 

 side contracted, which produces a circular movement, so that when one 

 was placed in the centre of the palm of the hand, it made two rounds 

 before it dropped over the side. As soon as it touched the sand it put 

 itself instantly out of sight under the surface, where it lay for a short time 

 perfectly quiet. When it began the formation of its pit, which I watched 

 to its completion, it commenced by a jerk of the head and thorax, which 

 threw the sand off and exposed them to view. It lowered them at once, 

 made a sudden start back, when the sand covered them ; then another 

 jerk and another backward move rapidly executed, always throwing the 

 sand to the outside. In its first round it described a circle of about an 

 inch in diameter, reducing the circle with each round. A mound was 



