MUSTARD BEETLE. 



61 



the past season much consideration was devoted, and consultation took 

 place, as to what could be done, not only amongst Mustard growers, 

 but amongst those also cognizant of the needs of the case from being, 

 in various ways, interested in results of the Mustard crop. 



As one obviously important point was circulating all available 

 information, a four-page leaflet was issued by Messrs. J. and J. Colman, 

 of The Carrow Works, Norwich, embodying useful, straightforward 

 observations on the appearance and habits of the " Mustard Beetle," 

 and of the "Turnip-flower Beetle" {Mdigethes ceneus), which sometimes 

 is not far behind the Mustard Beetle in the damage it causes, these 



Meligethes ^neus. — Beetle and maggot, magnified, and infested flower, and line 

 showing nat. size of beetle, after Dr. Taschenberg. 



notes being accompanied by figures of the insects, and suggestions as 

 to measures of prevention and remedy. 



Phyllotketa nemorum. — Beetle flying, and at rest ; maggot and chrysalis ; all 

 magnified, and with nat. size. 



Much about the same time, as I found that there was a good deal 

 of uncertainty abroad as to distinguishing various kinds of Mustard 

 attack, I also issued a leaflet for distribution, with figures of four of 

 the most destructive of the common kinds of infestation, namely, the 

 Mustard Beetle, figured at p. 60 ; the Turnip " Fly," or Flea Beetle 

 (figured above), which is sometimes a bad Mustard pest; also the 

 Turnip "Flower Beetle" (figured above), a most serious infestation ; 

 and the Turnip-seed Weevil (figured at p. 62), a very minute beetle, 



