279 



pair to the metathorax, and in changing to the imago each pair 

 ■f spiracles is transferred to that segment to which it ftmction- 

 ally belonged in the larva. The typical number of spiracles in 

 insects is ten pairs, and none are ever present in excess of this 

 number, or which are not homologous with some of these. 



In Mr. Gissler's article in Pstche, vol. 2. p. 240, it is stated 

 that the adult ''Amblrchila has seven pairs of stigmata.** De- 

 siring to find what had become of the missing spiracles of the 

 larva, I examined some specimens collected in Kansas and 

 kindly presented by Mr. S. W. Williston. of Xew Haven. 

 Without attempting to find the minute mesothoracic pair, which 

 are not present in the larva, the prothoracic pair and seven ab- 

 dominal pairs were easily discovered, making eight in all. The 

 metatliorax of Amblychila is verv much reduced dorsally, the 

 wings are absent, and no spiracles are apparent on this seg- 

 ment. The pair under the posterior edge of the prothorax 

 are, as usual, verv large. The spiracles of the abdomen dimin- 

 ish in size to the last, which are nevertheless well developed. 



W. E. Pattoiu 



BIBLIOGRAPHICAL RECORD. 



The dace of publicadoo, here give- Lii "irMiirS [ J, marfes :he rfme at -wtich the 

 TT.^rk: was receired by tiie Editor, ankss an earlier t^te of p«blicarivn is known to him. 

 An asterisk * befcsre a title is tiie Becorder s ceitifioate of accnracT of quocaaon. Cor- 

 rections of errors and notices of omissioBS are s»jlicited. — B: Pickhjls Maxs- 



Nos. 1215 to 12*^0 are from Can. entonu 1S7T, v. 9. 



* 12.52, "W^tcott Oliver S. F">i plants of H. maia. 

 (Can. entom., 1ST7. v. v^. p. 220.) 



[See Kee.. no. 1131-1 HendliLUca maia abondant in swampv localities. 

 Does it not feed on otker plants besides Qoerens. Salix and Spiraea "? 



[Dee., is::.] 



* 1258. Peck, G: Williams- [Captures of rare lepi- 

 doptera.] (Can. entom.. 1877. v. 9. p. 220.) 



3 species of Catocala and larvae of 4 species oi Sphingidae eaptnivd in 

 RoeeUe- X. J. ^Pee.. IS::.] 



* 1234. Grote, A: Radclifle. [A "seeming growth."] 

 (Can. entom., 1S77, v. 9, p. 220.) 



[See Ree., no. 1^41. J Suggests that the -growth" referred to is a pol- 

 len-mass. [Dec., isrr.] 



