THE MONTHLY BULLETIN. 



157 



THE TOBACCO SPHINX. 



rhiegethontius quinquemaculata Haw. (Family Sphingidse. ) 



(Protoparce quinquemaculata Haw.) 



(Protoparce celeus Hiibn.) 



(Fig. 138.) 



General Appearance. — All forms of this species greatlj^ resemble 

 those of the tomato worm in size and general appearance. The lateral 

 oblique, white stripes of the larvae do not extend as far up the back 

 in the tobacco worm as in the tomato worm. There are also longi- 



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ESSJG 



Fig. 138. — The tobacco sphinx (Phlec/ethonthis quinquemamilata Haw.) 

 at left and the tomato sphinx (Phlegethontius sexta Johan.) at right. 

 The chrysalis and larva are of the tobacco sphinx. (Original.) 



tudinal white stripes below the spiracles, forming "V's" with the 

 oblique stripes. The horn at the tip of the body is black. The 

 chrysalis has a much longer tongue case in this species than has that 

 of the tomato worm. The adults are about the same size, this species 

 being duller and with less distinct white markings. The abdomen is 

 more pointed ; the spots are lighter orange in color and two less in 

 number than in the tomato spinx. 



Distribution. — Throughout the entire State. One of the common 

 insects. 



Food Plants. — The principal food plants of this insect are tobacco 

 and tomato, though they feed upon various varieties of the Solanacem. 



Natural Enemies. — Internal parasites prey upon the larva3 and 

 greatly aid in keeping down the numbers. 



