53 



more winters, never rolls itself in a ring when touched, feeds on 

 the solid interior woody parts of vegetables ; pupa changes in a 

 tough cocoon, in which are interwoven particles of the larva's 

 food ; it has a double row of small raised denticulations on each 

 segment of the abdomen, which give it partially the power of 

 locomotion. 



Family ^geriid^, Stephens. 



Characters from the Imago. 



Palpi triarticulate, incrassated at the base, acuminate at the 

 apex, prominent, enclosing the antlia ; antennae, sub-cylindric, 

 gradually incrassated from the base nearly to the apex, the apex 

 itself acuminate and terminated with a fascicle of hairs ; ocelli, 

 two. Flight diurnal in the hottest sunshine. 



Genus Memythrus. — Sphinx, Linn.; Sesia, Laspeyres ; Mgeria, 

 Fab. 



Characters from the imago. 



Palpi very prominent, and densely clothed with scales at the 

 base, in appearance angulated ; antlia fine, not so long as the 

 antennae ; antennae the length of the thorax, in the male much 

 pectinated, in the female simple ; superior wings clothed with 

 scales, inferior hyaline. 



Sp. 1. Memythrus Vespiformis. — Sphinx Vespifor7nis,\Aan. 

 Syst. Nat. II. p. 804, n. 31. Mgeria Asiliformis of Fabricius, 

 and other authors. 



Characters from the imago. 



Palpi black, yellow at the apex ; antennae black, beneath 

 testaceous; fulvous at the base; head black, excepting a white 

 mark before each eye ; a yellow ring round the neck ; thorax 

 black, with a yellow spot at the base of each superior wing ; 

 abdomen black, slightly barbate, with three equidistant yellow 

 belts ; superior wings deep fuscous, inferior hyaline ; femora 

 and anterior tibias black, posterior tibiae and all the tarsi yellow. 

 Inhabits England, but is very rare. 



Sp. 2. Memythrus crabroniformis. — Sesia crahroniformis, 

 Lasp. 



Inhabits Italy. 



Sp. 3. Memythrus crassipes. — Sphinx crassipes, Drury. 

 Inhabits Africa. 



