1890.] ENTOMOLOGICAL NEWS. 21 



much attention from entomologists as it deserves, and ENTOMO- 

 LOGICAL NEWS may perhaps be utilized to present a brief state- 

 ment of the case. The change was made by Prof. O. W. Oest- 

 lund in his " Synopsis of the APHIDID.E of Minnesota (Bulletin 

 No. 4 of the Geological and Natural History Survey of Minne- 

 sota, p. 78)," where in using Ncctarophora he says : 



" It is with some reluctance that I propose to replace a name 

 that has already become so familiar and extensively used as that 

 of Siphonophorn. But Siphonophora as a generic term was al- 

 ready appropriated for the Myriapoda before Koch made use of 

 it in the APHIDID^E; and it is also used to denote an order of the 

 oceaiTic HYDROZOA, and should, therefore, according to practice, 

 be replaced by one not already occupied." 



Prof. Forbes informs me that Marschall's " Nomenclator" 

 gives the date of the use of Siphonophora by Brandt for a genus 

 of MYRIAPODA at 1886, and that of Koch for HEMIPTERA at 1855. 



It seems to me that in questions of nomenclature entomologists 

 at present cannot do better than follow the code of the American 

 Ornithologist's Union, in accordance with canon xxxiii, of which 

 the use of Nectarophora would be justified. This canon reads as 

 follows : 



" A generic name is to be changed which has been previously' 

 used for some other genus in the same kingdom; a specific or 

 subspecific name is to be changed when it has been applied to 

 some other species of the same genus, or used previously in 

 combination with the same generic term." 



-o- 



Noles on Smerinthus Astylus Drury. 



BY FRANK M. JONES. 



As but little is known of the life-history of this insect, the fol- 

 lowing notes may be of interest; unfortunately, I could not ob- 

 tain a full description of the larva through all its change : 



June 16, 1889. Found 1 and 9 on a twig of High-bush 

 Huckleberry. Here and there on all the Huckleberry bushes 

 hung a few dry leaves; the leaves, when dead, turn einnamon- 

 brown, and the two moths, as they sat motionless on the twig, so 

 closely resembled one of these clusters of dry leaves, both in 

 color and outline, that I did not recognize them as living insert?, 

 for some seconds after seeing them. 



