lii 



and KoUiker's ' Zeitschrift,' November, 1877, with numerous 

 illustrations of the small, clavate, and remarkably setose and 

 strong- smelling appendages [called Osmateria by Kirby] placed at 

 the extremity of the bodies of the females of the genera Heli- 

 conius, Eutides, Colcenis, and Dione {== Agraulis), which have 

 received the names of Maracuja butterflies, from the food-plant 

 of their larvge. By the i30ssession of these organs, and by a 

 variety of other peculiarities, detailed by the same author in an 

 article in the Stettin Ent. Zeit., December, 1877, the author has 

 satisfactorily shown that these four genera' ought no longer to be 

 associated with the Heliconiidce and Nymijhalidce, but together 

 form a separate group. These two articles are of much interest 

 in connection with the question as to the cause of the so-called 

 mimicry of many Heliconiidce (supposed to be owing to the bad 

 odour of the latter, most of which, however, want this stinking 

 organ) by other butterflies, as well as with reference to the name 

 of the remainder of the family, from which the supposed typical 

 genus is thus removed. 



Economic Entomology. 



The ninth annual report on the noxious, beneficial and other 

 insects of the State of Missouri, made to the State Board of 

 Agriculture, pursuant to an appropriation for this purpose from 

 the Legislature of the State, by Dr. C. V. Biley, " State Entomolo- 

 gist," has appeared. It contains, as usual, admirably illustrated 

 memoirs on the different species studied during the preceding year, 

 which are as follows : — the Gooseberry Span-worm, Eujitchia 

 ribearia (Geometridse) ; the imported Currant-worm, Nematus 

 ventricosus, Klug (Tenthredinidse) ; the native Currant-worm, 

 Pristiphora grossidarics (Tenthredinidse) ; the Strawberry-worm, 

 Emphytus maculatus (Tenthredinidse); Abbot's White Pine-worm, 

 Lophyrus Ahhotiil^exi.ihxQdamdLdd) ; Leconte's Pine-worm, Lophyrus 

 Lecontei (Tenthredinidse); the Colorado Potato-beetle (Chryso- 

 melidfe) ; the Army-worm, Leucania unipuncta (Noctuidse) ; the 

 Wheat-head Army- worm, Leucania alhilinea (Noctuidse) ; the 

 Rocky Mountain Locust, Caloptenus spretus (Acrididse), occupying 

 more than half the volume ; the Hellgrammite, Corydalis cornutus 

 (Sialidse) ; and the Yucca-borer, Megathymus Yucca (Hesperidse). 



Mr. WoUaston has made us acquainted with a new insect-pest 

 at Madeira (Ann. Nat. Hist., October, 1877), which threatens to 



