98 THE CANADIAN ENTOMOLOGIST. 



obtained from my grass stalks several more specimens, and I believe the 

 two forms to be entirely distinct. A specimen was sent to Prof Riley, 

 upon the receipt of which he wrote as follows : 



" It is undoubtedly distinct from /. Tritici, as is shown not only by the 

 greater length, stouter body, darker color of the antennal scape and con- 

 stancy of the winged form, but also by the punctuation (most markedly), 

 by the shape of the mesothoracic scutum, and by the color of the meso- 

 scutar parapsides. It comes in fact nearer to Hordei than to Tritici, 

 though, as you say, it is well distinguished from the former by the 

 punctuation," 



Five specimens were obtained. These measured : two .12, one .14 

 and two .15 of an inch in length, and all were winged females, the male 

 not being as yet known. The body robust, much like Ho7-dei, the head 

 and thorax rather coarsely punctured, but less so than in Hordei. The 

 scape of the antennae black, the rest brownish black ; legs black, the 

 articulations and feet, except the last joint, tawny, the tibiae scarcely 

 lighter than the femars and trochanters. Spot on side of prothorax and 

 tips of ovipositor tawny. This is less hairy than Tritici, more in that 

 respect like Hordei It may be stated here also that it differs from Hordei 

 in the place where the larvae are found, these being on the interior of the 

 culm in the central hollow, and making no galls, while the larvae of Hordei 

 are found in galls in the outside tissue of the culms. 



CORRESPONDENCE. 



the development of a luna. 

 Dear Sir, — 



On the evening of the 12th of April, being at the residence of Mr. 

 J. Johnston, a noise proceeding from his hatching box attracted his atten- 

 tion. Upon looking for the cause, he found a Luna just emerged, the 

 fifth from a batch of nine cocoons which he had raised from the egg. Its 

 body and wings seemed to be quite dry, and were a pure downy white, 

 with the exception of the costal band, which appeared disproportionately 



