( cxvi ) 



II will lie observed tliiit all the AcliiTOntiiii.ae except Jlersr an; of 

 Neotropical extraction, l)eiug derivations from I'rofoparcc. One of these genera 

 extends into the Pahiearctic fanna (/fi/loir/ts), and has given rise to another 

 genns in N.W. India ( 'l'h<(wiint'cha). The Atlantic Lapara is also a develop- 

 ment of Hyloicus. The most generalised Ncarctic species of IFt/loicus are 

 eremitoides and .^epantttin ; they are closely allied to those llyloicus which are 

 pnrely Neotrojjical {geminim, Itigens, /star, etc.). We shall refer to this particniar 

 relationship again when discussing the Palaearctic Spliingidac. The Amhulicine 

 genera of North America (as well as the Mexican genus Monarda) are all of 

 the Old World branch of the subfamily, which branch begins with Callamhulf/x, 

 itself not very far from the most generalised Ambnlicine genns Coynpsogem, 

 confined to the Indo-Malayan Subregion. Sphinx is common to North America 

 and the Palaearctic liegiou, and has its older members in Central Asia (Sp/t/nx 

 hindermanni and caecus) ; one of the two Nearctic species is strongly specialised 

 {jamaicensis). Calasymholus is a derivation from Sphinx, and Pachi/siihinx and 

 Cressonia (as well as Monarda) come also very near Sphinx and Amorpha (see 

 pedigree of Ambidicinne). 



The only Sesiine genns of North America >vhich is not a recent immigrant 

 from the South is llaemorrhagia with four species. It is distributed over the 

 Palaearctic Region, and has one species in India and another on the Moluccas 

 (Amboina, venafa). The six genera of Philampelinae peculiar to the Nearctic 

 Region are not nearly related to the Neotropical Philampeline genus Phol/is, 

 wliich represents an ancestral branch of the subfamily not occurring in the 

 Old World, but are specialisations of Old World genera. Ampeloeca (rersicolor 

 and myron) and Darapsa (ph(dus) are very closely allied to Ampelophaga of 

 the Oriental Region and Pacific Palaearctic Subregion, being, like the Syrian 

 genns Berutana, derived from it. Sjthecodina, Deidamia, Arctonotus, Amphion, 

 Proserpinus, and Evproserpimis have nothing to do with Haemorrhagia, with 

 which they are generally associated in classification. They belong to the Afro- 

 Oriental tribe Nephelicae of the Philampelinae. 



North America has no species of Ghoerocampinae to itself, the three species 

 occurring in the temperate districts being Xi/lophanes tersa, which is Neo- 

 tropical, Celerio gallii, which is Holarctic, and Celerio lineata, which is 

 cosmopolitan, the American subspecies C. lineata lineata extending over both 

 New World Regions. 



A few of the Nearctic genera reach southward into Mexico. Dolba hylaeus 

 is represented in Mexico by a jounger genus, Dolbogene, containing, like Dolba, 

 only one species (Jiartwegi). One of the siibspecies of Sphinx cerisi/i, of 

 Pachi/Hphinx modesta, and of Hyloicus chersis occur in Mexico. Uyloicus 

 separatus of Kansas, Colorado, and New Mexico is found also in Mexico. 

 Arctonotus terlooi is an inhabitant of West Mexico, which is geographically very 

 closely related to the arid parts of the South-western States : California, Arizona, 

 Colorado, and New Mexico. Not one of the genera of Old World extraction 

 extends farther south than Mexico. 



