155 



NEW MEAN8 AGAINST ORANGE PESTS. 



The effectiveness of the kerosene emulsion against fruit scale insects, 

 and of the kerosene emulsion combined with suli)hur against the Red 

 Spider, has been ])retty ccniclusively shown by experiincntsition in 

 Florida. The Florida Agrivulturifit^ (juoted in the American Garden for 

 July, 1801, states that in this connection the Rev. Lyman Phelps, who 

 has given nnich talented research to the subject, uses bisulphate of 

 soda, 10 ])ounds to 50 gallons of water, and finds this a safe and effica- 

 cious remedy. A stronger solution than that named is liable to injure 

 the foliage. He also expresses the opinion that the insect pest will prove 

 a friend to the careful cultivator, as a careful and industrious man will 

 adopt vigorous and eftective treatment and thus keep his grove in a 

 healthy condition, while his indolent neighbor will neglect his trees 

 until the damage is so great as to put him out of the race. The senti- 

 ment, which is not a new one, is also not a bad one, and the progressive 

 fruit grower will have to realize it and recognize the necessity of adopt- 

 ing imjnoved methods or he will certainly fail of success in his busi- 

 ness. 



LATE ENTOMOLOGICAL PUBLICATIONS OF THE NATIONAL MUSEUM. 



We have not yet mentioned the fact that the Proceedings of the U. S. 

 National Museum have recently contained three entomological articles 

 which have been issued under special covers as Nos. 837, 838, and 839. 

 These are : Notes on North American Myriopoda of the family Geophi- 

 hdte, with descriptions of three genera, by O. F. Cook and G. N. Col- 

 lins"^, Contributions towards a Monograph of the Noctuidae of Temperate 

 North America, a revision of Homohadena, Grote, by John B. Smith ; and 

 Contributions towards a Monograph of the Noctuidse of Temperate 

 North America, a revision of the species of Hadena referable to Xylo- 

 phasia and Luperina, by John B. Smith. 



TIGER-BEETLE LARV^ VS. COLIAS PHILODICE. 



Mr, R. R. Rowley, of Curryville, Mo., describes [Canadian Entomolo- 

 gist^ XXIII, April, 1891, p. 92) a very curious case of the destruction of 

 butterflies, Colias and Pieris^ chiefly G. philodice, by the larvae of some 

 Tiger Beetle. During a drought in August, in 1886, he noticed a great 

 bunch of Coliads about one of the few moist clay slopes or banks of a 

 nearly dry brook. Some of them while fluttering violently seemed un- 

 able to rise and upon taking one of the struggling butterflies by the 

 ^^^ng he found that they were firmly held to the ground by having their 

 abdomens drawn into the burrows of Tiger-beetle larvse, these voracious 

 grubs actually eating them alive. 



The bank was found to be strewn with mutilated specimens of philo- 

 dice, and upon his retiring a few yards the thirsty butterflies returned 

 and those which alighted over burrows were quickly seized by their 

 enemies. This is certainly a very unusual occurrence. 



