82 



trouble or weakness about the heart against taking any part in the 

 application of carbon bisulphide. 



In view of the increasing use of CS 2 as an insecticide and the scat- 

 tered condition of such observations as have been published in regard 

 to it, the writer respectfully suggests the desirability of a more com- 

 prehensive report than has } T et been made, published in some such 

 form as to be readily available to all those desiring practical informa- 

 tion upon this subject. 



GENERAL NOTES. 



ICHNETJMONID PARASITES OF THE SUGAR-CANE BORERS IN THE ISLAND 



OF REUNION. 



Under this title M. Edmond Bordage, director of the Museum of 

 Natural History of Reunion, has published a brief account of Ophion 

 mauritii Saussure and of 0. antankarus Saussure, which are parasitic 

 in Reunion on the larva? of Diatrcea striatalis and Sesamia albiciliata, 

 two destructive sugar-cane borers of that island and of Mauritius. He 

 thinks that they are responsible for the marked reduction in the num- 

 bers of the borers. 



The accompanying figures are from drawings by M. Bordage, and 

 illustrate the wing venation of O antankarus. 



U 



Fig. 29.— Wings of Ophion antankarus— I, upper wing: II. lower wing. The large cell (cd) of the upper 

 wing has three spots of reddish or yellowish color, which are given in detail much enlarged in 

 Fig. Ill; they take the form of a crescent, a mere speck, and a triangle. (With 0. mauritii th ^re 

 is found in the interior of the large cell {cd) only one spot which is formed like a triangle.) 



•INSECTS FROM BRITISH HONDURAS. 



The Rev. W. A. Stanton, S. J., of St. Louis University, St. Louis, 

 Mo., sent February 12, 1900, for identification certain insects col- 

 lected at Belize, British Honduras. The notes which accompanied 

 them are of interest. 



An insect known locally as the "doctor fly" was identified as 

 Diachlorus ferrugatus Fabr. Mr. Stanton writes: 



The fearful local swelling which follows the bite of these insects causes them to be 

 regarded with dread by the inhabitants. The effect, however, varies in different 

 individuals, 



