152 PJONEA POimCALIS. 



lucent green, with faint indications of two darker 

 green longitudinal side-lines. 



Before spinning up it changes colour to an almost 

 uniform pale glossy rather bright green, consequent 

 on the colouring matter having left the skin, and the 

 pulsating vessel forming the dorsal stripe is then 

 narrower and very distinct; the dark trapezoidal spots 

 also show out prominently. 



Feeds on various species of Brassica, horse-radish, 

 etc. (George T. Porritt, Note Book, 11th September, 

 1874.) 



PlONBA STRAMENTALIS. 



Plate CLIV, fig. 7. 



In the first part of a " Calendrier clu Micro-Lepidop- 

 teriste," by M. Camille Jourdheuille, published in the 

 volume for 1869 of the i Annales de la Societe Ento- 

 mologique de France,' at p. 540, under the heading for 

 March we read : " Botys stramentalis, Hb. Dans les 

 tiges de ble : quelquefois tres nuisible." This has been 

 cited by Dr. E. Hofmann in his ' Kleinschmetterlings- 

 raupen,' and also more recently by M. E. L. Ragonot, 

 in Vol. XVI, p. 154 of the ' Ent. Mo. Magazine,' where 

 he tells us " it has been stated that the larVa feeds in 

 March, in stems of wheat, and that it is sometimes 

 injurious to crops." 



Now in what follows I think I shall be able to 

 dispose effectually of the foregoing misconception of 

 Pionea stramentalis, by showing that the larva is not 

 at all an internal feeder, or to be found in March, and 

 is quite innocent of attacking any cereal crop. 



On the 27th of July, 1881, I had the pleasure to 

 receive from Mr. William R. Jeffrey a numerous batch 

 of eggs laid by some female moths of this species he 

 and his son had captured, and imprisoned with a 

 variety of leaves of plants that grew where the insects 

 were flying. 



