THE CANADIAN ENTOMOLOGIST. 23 



observed them repeatedly. The female chooses a crack in the wood or 

 an old beetle-boring of suitable size, and lowers her abdomen down this, 

 sometimes nearly as much as an inch. Sometimes when the hole is of 

 large size, only the head and legs of the insect can be seen above it. 

 Unlike Ch/oealtis conspersa, the female of M. punctulatus apparently 

 never bores herself unless merely to make her way through any loose 

 rubbish that might be obstructing the hole. She generally chooses sound 

 or only partly decayed wood. 



I managed to obtain several fragments and one complete packet of 

 eggs. The latter was fixed by the cement substance at its lower end to 

 the wall of a beetle-boring three-eighths of an inch in diameter. It was 

 attached at a distance of about three-quarters of an inch down the hole, 

 and except at the lower end, which was imbedded in a depression in the 

 wall, the packet was quite free. It was covered with a rather thick coat- 

 ing of a porous or vesicular cement substance, which also filled all the 

 spaces between the closely-packed eggs. The latter were twenty-three in 

 number, and their arrangement was in general in a longitudinal direction, 

 the anterior ends pointing towards the free end of the packet, but was 

 otherwise irregular. 



The eggs are 4 to 4.8 mm. long, elongate-elliptical in form, finely and 

 densely punctate, reddish-brown. There is a slightly impressed line 

 encircling the egg close to its posterior end. 



M. pimctiilatns has been fairly common also at Toronto this season. 

 I found a pair on a white oak tree, the others on pine. 



A NEW CECIDOMYIID ON GUTIERREZIA. 



BY T. D. A. COCKERELL, E. LAS VEGAS, N. M. 



Asphondylia gutierrezice, n. sp. 



9 . — Length slightly over 3 mm.; antennse pale brown, 2 + 15 jointed, 

 the first two joints darkened ; eyes united on vertex ; thorax reddish- 

 brown, dorsally shining, naked, with four very thin longitudinal bands of 

 hairs ; femora pale brown, tibiae and tarsi darker ; wings well fringed with 

 hairs ; abdomen nearly naked, bright red, ovipositor and a dorsal apical 

 patch white ; ovipositor moderately long. 



Pupa shell white, the anterior part faintly tinged with brown. 



Gall a pale green fusiform or suboval swelling in the flower-head of 

 Gutierrezia sarothrce, about 7 mm. long and 3 mm. broad. 



Hab. — Las Vegas, New Mexico ; collected by Wilmatte P. Cockerell; 

 flies emerging October 31. 



The colours of A. gutierrezice are described from fresh material ; 

 dried examples will not be so bright. 



