Vol. xxiii] ENTOMOLOGICAL NEWS IT 
expanse, while my male is 107 mm.; with more rounded wings 
than the male, and is much darker in color, the pink being much 
overclouded with a darker brown, and it is a handsomer in- 
sect. The photograph brings out fairly well the differences, 
even though in black and white. 
Dr. Beutenmuller has written me that Mr. Schneider, of 
Baltimore, some time ago took an unknown larva from ash, 
which he described to Mr. Beutenmuller in a letter, though 
I believe this description was never published. It is thought 
by Dr. Beutenmuller to agree with the specimen I sent him. 
Unfortunately, Mr. Schneider’s pupa was destroyed during the 
winter by accident. It may be noted that the original descrip- 
tion as published by Mr. Neumogen, as well as the Catalogues 
of Drs. Smith and Dyar, give the name of the Sphinx as 
“franckii;” whereas Rothschild and Jordan, in the ‘Genera 
Insectorum” and also in their “Revision of the Sphingidae,” 
Vol. I, p. 135, follow the custom of writing the name “francki.” 
As to the biologically important part of the matter, the 
specific validity of the insect; the constancy of coloring and 
characters in the three known examples, of both sexes, (one 
female and two males), might argue against hybridism, al- 
though among birds, for instance Helnunthophila leucobron- 
chialis, a supposed hybrid between H. pinus and H. chrysoptera, 
among our native warblers, there is much constancy in the 
markings of the known specimens. I cannot, however, agree 
that Sphinx kalmiae plays any part in the parentage, for the 
larva shows no resemblance to this species, whereas, as be- 
fore suggested, there is more than a suggestiveness of the 
larva of amyntor, though chersis is the nearest ; amyntor could 
contribute the cream-pink to the wings of franckii as well as 
could kalmiae. On the other hand, if amyntor and chersis are 
really in separate genera, as seems to be the case, it might be 
doubtful if they would interbreed; the general scheme of 
thoracic and wing markings of franckii are about as near 
amyntor as they are to kalmiae, though the abdominal spots 
are more similar to kalmiae and chersis. Sphinx chersis is 
abundant here, Ceratomia amyntor occurs at times and I have 
