Descriptiox of a Xew Sphtxx. 171 



(Plate 8, fig. 9, pupa of E. IIarrisi%) are witliont an exserted tongue 

 case, for the short tongue, not exceeding the length of the palpi, 

 does not require such a provision ; in pinastri, the tongue-case is 

 long and elevated in its middle above the thorax. * The larval states 

 are very dissimilar, the former being without a caudal horn, and 

 the latter provided with a conspicuous one. The larvse also differ in 

 several particulars in their habits. 



Mr. Grote (loc. cit.) expresses his opinion that the Lapara homhy- 

 coides of Walker will prove to be identical with E. Harrisii. It has 

 also been suggested to me that E. jpinenm. might be equivalent to 

 Walker's species. Accepting his diagnosis as, at least, approximately 

 correct, I cannot believe that the species described in this paper has 

 been anticipated, or that L. hombycoides will be found to be a 

 synonym of E. Harrisii. Walker states that his species " has much 

 outward resemblance to the Bombycidie," but neither of our Ellemas 

 would even remotely suggest such a comparison. 



The statement of Mr. Grote, that Walker's description was drawn 

 " from a Canadian specimen in Mr. Saunders' collection," led me to 

 communicate with Mr. Wm. Saunders of London, Ontario, with a view 

 of ascertaining what the specimen really was. He informed me that it 

 had never been in his possession, but that he had ascertained, after con- 

 siderable effort, that the insect in question had been received by Mr. 

 Saunders of London, England, from a correspondent in Canada, from 

 whom it was procured by Walker for description. 



From Mr. Wm. Saunders I have received specimens of the larva 

 and imago oi E. J3arrisii, tiiken in his ^-icinity — the larva within five 

 days of its pupation at the date of its transmission, September 6th. 



It is probable that E. pineum occurs also in Canada, for having (in 

 IS 64) transmitted my specimens to Mr. W. H. Edwards for his inspec- 

 tion, he informed me that he had just received, in a box from Mr. 

 Saunders, an individual seemingly identical with those sent by me. 



Hari'is, in his Insects injurious to Yegetation, p. 328, speaks of " the 

 curiously checkered caterpillar of Sphinx coniferarum on pines." 

 It is possible that this may have been the larva of E. pineum which 

 may have fallen under his observation, associated in the Eastern States 

 with E. Harrisii (his aS'. coniferarum)., yet it is more probable that it is 

 simply a reference to the representation as given by Abbot of the 

 coniferarum larva of the Southern States. 



* Each of the species, of which the pupation is kiiown to me, which Mr. Grote 

 refers to the genus Sphinx proper, viz. : c7ier»is, drupiferarum, kalmio', Oordius, 

 eremitus {luscitiosa a.nd lugens unknown), has an exserted tongue-case for the tongue, 

 which latter is nearly or quite as long as the body 



