SPHINGIDAE 293 



Tlie phylogeny is suflEiciently simple ; the groiip of Smerinthus 

 and Dilina is of primitive character, and some exotic members 

 of it closely approach the Notodontidae ; the other genera con- 

 stitute a more largely developed line of descent originating in 

 this group. 



o 



Tabulation of Genera. 



1. Abdomen Avith broad expansible anal tuft 



„ without expansible anal tuft . . 3. 



2. Abdomen hairy, wings partly ti'ansparent 1. Hemaeis. 



,, smooth, wings opaque . 2. Macroglossa. 



3. Posterior tibiae without middle-spurs 6. Smbrinthus. 



,, ,, with middle spurs . . 4. 



4. Abdomen conical, pointed . . .5. 



,, obtuse ... 5. ACHERONTIA. 



5. Antennae thickest near apex . . .6. 



„ „ about middle . . 7. Dilina. 



6. Thorax with short double posterior tuft . 4. Sphinx. 



,, smooth . . . .3. Deilephila. 



1. Hemaris, Dalm. 



Tongue strongly developed. Antennae over ^, gradually 

 thickened to near apex, then pointed, apex slender, hooked. 

 Abdomen broad, hairy, with broad truncate expansible anal 

 tuft. Tibiae densely hairy. Wings with disc transparent. 



A moderate genus, distributed throughout the northern 

 hemisphere, but mainly American and Asiatic. Imago day- 

 fiying, feeding on the wing ; immediately after emergence the 

 wings are furnished with very fugitive scales. 



Hindwings with a blackish terminal line 1. homhyliformis. 

 ,, ,, dark red-brown terminal fascia 2. /MCT/ormi.s. 



1. H. bombyliformis, Esp. 38-42 mm. Abdomen ochreous- 

 yellowish, apex and a central band blackish. Forewings trans- 

 parent, veins blackish; costa and a basal patch dorsally prolonged 

 to beyond middle blackish mixed with ochreous-yellowish ; a 

 blackish terminal fascia, becoming very naiTOW towards tornus. 

 Hindwings transparent, veins blackish ; base and a dorsal band 

 blackish mixed with ochreous-yellowish ; a linear blackisli 

 terminal border. 



Britain to the Clyde, Aberdeen, Ireland, rather common ; 

 Europe, WC. Asia; 5, 6. Larva green, yellowish-dotted; 5-12 

 with subdorsal and spiracular series of dark reddish or brown 

 marks; spiracles white; horn reddish: on Scahiosa ; 7, 8. 



