80 THE CANADIAN ENTOMOLOGIST. 



gall, common on the Eose in England. The larva is cecidomyidous, of an orange 

 color, with a dark Y-shaped breast-bone, and as usual inhabits a cell with smooth 

 internal walls to it, in the middle of the gall. Occurred July 19th." 



I am acquainted~witli three other Cecidomyidous leaf-galls on Cratœgus, one 

 of which (^Cratcegi plica, Walsh M. S.) grows on Cr. crns-golU, and two 

 (Cr. limbns, "Walsh M. S. and Cr. globulus, Walsh ]\I. S.) on Or. tomentosa^ 

 besides a singular Acaridous leaf-gall, which looks like a slender pale-green 

 worm, wriggling through the crinkled parenchyma of the dark green leaf, 

 and which is found locally, but in profuse abundance, both on Cr. tomentosa and 

 on Cr. crus.galli. The mite-larva; of this last, to which I have given the M. S. 

 name of Cr. vermiculus, are remarkable for being of a beautiful rosy color. 



It was from the above-mentioned gall Cr. plica, that I obtained great 

 numbers of the larv£e and imagos of Anthonomus crattegi, Walsh, which is 

 inquilinous in this gall, as I have stated in my paper on Willow-galls, Pro. 

 Ent. Soc. Phil. VI. p. 266. — Ben. D. Walsh, Rock Island, Illinois, March 

 22, 1869. 



MELiTiEA Phaeton. — Mr. W. H. Edwards (Coalburgh, West Va.), writes, 

 '■ I should like to know from Mr. Billings, what are the plants which he says 

 might be common to the Ottawa district and to this, and on which I might 

 find the larva of M. phaeton. The figure of the larva of Phaeton in 

 Packard's Guide, does not represent the species or the genus, but something 

 of the Arctian type." 



Mr. B. Billings (Ottawa, Ont.), replies as follows : — <'The plants referred 

 to by Mr. Edwards, are Thalictrum cornuti, Chelone glabra, Cypripedium 

 pubescevs, and C. spectahile. They are all northern, but range southward, 

 and the last may be rare. Myrica gale (a shrub), ranges along the mountain» 

 in Virginia, and it is not impossible that Cornvs stohnifera, may be found 

 similarly situated. 



" The Canadian Entomologist, No. 7, recites a note by Dr. Packard, in 

 which he states that the larva of M. phaeton feeds upon the Aster, Hazel, 

 and Viburnum deniatum. The Viburnum specified, is common here in 

 swamps, and six other species of the same genus are common in the neigh- 

 bourhood. I saw none of them, however, in the enclosure where I met 

 with if. phaeton, but on the outskirts of the thicket, about forty rods from 

 the swamp, I saw several plants of V. Lentago. 



" As for Asters and Hazel, I do not recollect having seen them. I am 

 confident that they do not grow in the swaraps, but no doubt they occupy 

 the high land, or intervening thicket, at no great distance from it. Our 

 only species of Hazel is Corylus rodrata) the species of Asterare numerous, 

 and as they are everywhere abundant in thickets, they must surely grow here. 



