THE CANADIAN KNTOMOLOGIST, 19 



Pipiza modesta, Loew., was reared from apple twigs infested by 

 Schizoneura lanigera (Hausm). 



Pegomyia bicolor, Weid., was reared from larvae mining in the leaves 

 of a species of Rumex. 



Leucopsis bell a, Loew., was reared from a melon louse, probably 

 Aphis gossypii, Glover. Have reared apparently this species from Aphis 

 on cherry. 



From the same host was reared a species of Cecidomyia^ the larvte 

 of which were observed feeding upon the Aphis. I have reared either 

 this or a similar species from Aphis on plum leaves. 



Masicera eufitcliix. Towns., was reared from the larvae of CEnectra 

 liisiincta and Teras miniita, Rob., var. cinderella, Riley. 



Euphorocera davipennis^, Maq., was reared from larvae of Datana 

 ininistra, Dru. 



Paraplagia spinosula, Bigot, was reared in numbers from larvee 

 feeding on alder. The host was the larvre of some species of Sawfly, the 

 adult of which was not reared. 



The determinations were made by Mr. Coquillett by courtesy of Dr. 

 L. O. Howard. 



A NEW ORTHEZIA. 



nv T. D. A. COCKERELl., N. M. AGR. EXP. STA. 



Orihezia artemisice, n. sp. — 9 . Immature form. Antenna; and 

 legs piceous. Body covered with white secretion. Dorsum with two 

 rows of dentiform tufts; the first four directed forwards; the remaining 

 seven, decreasing in size caudad, directed backwards. Nine lateral tufts ; 

 the first, on a level with the second dorsal tufts, at right angles to the 

 body ; the others directed backwards, and about of equal length, except 

 the last two, which are longer and narrower, the last being longest- 

 Caudal tufts e.\tending caudad of last lateral tufts. 



$. — Mature. Differs by having the lamellte or tufts more elongated, 

 the first dorsal erect, longer than broad ; the remaining dorsal produced 

 and no longer dentiform. The arrangement is now practically as in adult 

 O. urticce (L.), except that the first dorsal lamellae are wide apart at tips, 

 and the second dorsal lamellre are smaller (instead of larger) than the 

 third. The hindmost lateral lamelhx? are also somewhat less produced 

 than in urticce. Antenna* and legs dark red-brown ; antenn;^ 8-segmented, 

 3 longest; 5 a little longer than 4 ; 6 and 7 about equal, and shorter than 



