296 MAINE AGRICULTURAL EXPERIMENT STATION. I909. 



is one of the prettiest sights of the insect season. Fig. 120 

 gives the position of this species when oviposition is nearly 

 finished. The migrants settle on the larch needle either with 

 head toward base of needle or toward tip, apparently indiffer- 

 ently. 



On July 31, 1909, opening galls of this species were placed 

 upon sprigs of conifers in cage. The twigs were in vials of 

 water so that they remained fresh. On August 3 the indi- 

 viduals that oviposited were counted with the following results: 



Picea rubra Dietr Red spruce o 



Picea.mariana (Mill.) B. S. P Black spruce o 



Picea abies (L.) Karst Norway spruce i 



Picea canadensis (Mill.) B. S. P "White spruce 4 



Pinus strobus L White pine o 



Pinus sylvestris Scotch pine o 



Thuya occidentalis L Arbor Vitae o 



Abies balsamea (L.) Mill Balsam fir 4 



Larix laricina (Du Roi) Koch Larch 69 



The preference for larch speaks for itself. Whether the other 

 ovipositions have any significance or are merely accidental it 

 is, on the basis of this one test, impossible to say. 



Whether lariciatus may be the same as laricifoliae Fitch 

 I have not been able to decide. There is nothing in the brief 

 description of Fitch's to preclude this possibility. Fitch's color 

 description does not agree in all respects with my notes for 

 lariciatus but these were made from specimens immediately 

 after molting and would not be the same as an older specimen. 

 The italisized portion of the original description for laricifoliae 

 Fitch which is here quoted entire would apply very well to 

 lariciatus. "Solitary and stationary upon the leaves, extracting 

 their juices, small black shining flies 0.10 (inch) long, having 

 the abdomen dark green, the legs obscure whitish, the wings 

 nearly hyaline with pale brown veins and the large stigma-spot 

 upon their outer margin beyond the middle more opake and pale 

 green. This is closely like the Pine Chermes, No. 267, but 

 has the wings more clear, and, differs also in some of the details 

 of its colors." 



So far as I can judge some of thi records referred to larici- 

 foliae in this country really concern consolidatus which is cer- 

 tainly not laricifoliae Fitch. It is not improbable that lariciatus 



