82 JOHN B. SMITH. 



15. — Scales of the head lyin^ snidolli and flat Choerooaiiipa. 



Scales of the head iu a ridge or tuft between the aiitenuge Evoryx. 



16. — Outer margin of the fore wings evenly rounded and entire Elleiiia. 



Outer margin of the fore wings scalloped, or more or less angulate 17. 



17. — Fore tibiaj with a stout spine at tip; large species Triptogoii. 



All the tibiiE spinose ; medium sized species Cressoiiia. 



Tibise not spinose; medium sized species; hind wings with an eye spot. ..18. 

 18. — Outer margin of the fore wings scalloped Paoiiias. 



Outer margin of the fore wings more or less angulated SineriiitliU!!^. 



This is followed by a synopsis of the larvte so far as known, which 

 need not, however, be reproduced here. 



Prof. Fernald recognizes four subfamilies, following somewhat my 

 arrangement of the genera, in the location of Deldamia and Ellema 

 and in the situation of the Smerinthinm. 



His arrangement is as follows: 



]\[acroglos8IN^e : Hemaris, AeUopos, Lepisesla, Amphion, Thyreiis. 



Sphingin.e : Ceratomia, Daremma, Phlegethontlm, Sphinx, Dolba, 

 Dilophonota, Hy/oicus. 



Chcerocampin^e: DeUephila, Philampelus, Choerocampa, Everyx, 

 Deidmnia. 



Smekinthin.k : Triptogon, Puonlas, Smerintkns, Creiisonia, Ellema. 



In marked contrast to the above, is a pamphlet by Mr. A. R. 

 Grote, in 1887, on " The Hawk Moths of North America." This is 

 a loose treatment of the tSphingidce of the Atlantic region, with in- 

 definite descri))tions in pojndar style of the genera and species, 

 largely culled from Prof. Fernald's paper and with some remarks on 

 the geographic distribution of genera and species, which form the 

 most interesting and useful part of the whole work. 



The genera Deilonche for Choer. tersa, Atreus for Sphinx plebeius 

 and Copismerinfhns for Svier. cerysii, are created on information 

 gained from Prof. Fernald's paper. 



The arrangement in the Check List of 1882 is retained in essen- 

 tials, excei)t that the subfamily terms Macroglossin.^, etc., are 

 here used to replace the inexiDressive terms for the sections used in 

 the list. 



This enumeration of authors is by no means complete, but it em- 

 braces all those who have either done general monographic work, or 

 have done similar work on the American species. Many authors 

 have given us isolated descrii)tions of genera and species. Besides 

 the older illustrated works of Drury, Cramer and Abbot, Mr. 

 Strecker has, in recent times, vei'v acceptably figured a large pro- 

 portion of our species. 



