THE CAITADIAN ENTOMOLOGIST. 41 



a central elongated black patch "with a larger granulation on each side. 

 Stigmata small, round, and dull red. 



Under surface slightly paler than the upper, with a darker central line. 



Feet pale green, spotted with red ; prolegs greenish, semi-transparent. 



Note by Ed. C. Ë. — This description corresponds very nearly to that of 

 the larva of Smerinllius excœcatus, by Mr. Lintner (Pro. E. S. Phil. iii. 

 p. 665). We have never ourselves met with any Lepidopterous larva that 

 emitted sounds ; the imago of Sesia thyshe is described by Dr. Gibb (Can. 

 Nat. and Geol. 1859, p. 122) as giving forth a loud and most striking note, 

 "something like the squeaking of a mouse or a bat," which he attributes to 

 the action of the respiratory organs. The well-known European Death's- 

 head moth {Acherontia atropos) emits a somewhat similar noise, even before 

 leaving the pupa case, as well as afterwards ; Kirby & Spence state further 

 (letter xxiv.), that "its caterpillar, if disturbed at all, draws back rapidly, 

 making at the same time a rather loud noise, which has been compared to 

 the crack of an electric spark." 



MISCELLANEOUS NOTES. 

 Double Broods. — If others take as much pleasure in reading your little 

 Journal as I do, possibly my mite of information may be accceptable. Mr. 

 W. Saunders has asked a question, in the concluding part of his paper, 

 No. 2, for November, although I cannot give an answer, yet I believe I can 

 throw a little light upon the subject. In the summer of 1865 I fed upon 

 the potato the larva of Uacrosila celeus, G. & R. (^Sphinx 5-maculata), which 

 came out of the chrysalis in August. I then made record of the fact which 

 to our entomologists was new. The following year I also raised upon the 

 potato Macrosila Carolina, Clems., a pair of which came out in September. 

 The same year I also raised from larva Hemileuca maia. Walk. ÇSaturnia 

 maia, Harr.), part of the brood coming out in October, and one deformed 

 specimen in the following May. Miss C. Guild, of Walpole, Mass., a close 

 and careful observer and a reliable naturalist, informs me that her experience 

 with the last named species is, that of the same brood of larvae all going into 

 the chrysalis nearly at the same time, part come out in October and others 

 not until the following October, some lying in the chrysalis one year longer 

 than others. I have been puzzled to account for their seeming irregularities, 

 but as instances of the fact increase, conclude it is a provision of nature that 

 our lack of knowledge only makes it strange. In Mr. B. Billings' article in 

 the same number of your paper he enquires if Melitœa phaeton may not be 

 double brooded. Mr. Scudder, in his list of butterflies of New England, 

 says, "I have taken the caterpillar just ready to change, upon the barberry 



