226 ENTOMOLOGICAL NEWS. [May, ’o8 
4. The shell of the parent, when dead and empty of eggs, 
usually dries up in situ without causing further trouble. 
5. The eggs once having reached the dust of the floor de- 
velop precisely like those of many other fleas. 
In the light of what has been said it will be seen that so long 
as natives go about with infected feet, chiggers will abound. 
Domestic animals, too, should be kept at some distance from 
white quarters and the floors of bungalows should be occasion- 
ally sprinkled with naphthol or kerosene. I have several times 
pointed out* that this flea is one of the principal factors in the 
production of the tropical disease known as Ainhum, 
19. 
No. 1067. Calandra oryzae L. (Coleopt.) : 
This troublesome weevil is a great nuisance in stores of meal- 
ies (maize) and other grain. A moth (not yet heard from) 
shares with it this evil reputation. The native blacks in order 
to preserve their seed corn, store it in earthen pots the mouths 
of which they seal with clay. The local name for the weevil 
is “Omelekese.” 
20. 
No. 876. Dorylus nigricans Ill. (Hymenopt.) 
This is the hated “army ant” of this district. Having been 
several times driven from my tent by them I can personally 
testify to their mandibular powers. In former days a favorite 
method of punishment inflicted by the native chiefs was to 
bind hand and foot the victim who was then thrown into a 
nest of “army ants’—here called “Ovisonde.” Careful house- 
wives, however, welcome the approach of the ants and joy- 
fully vacate for them the bungalow. For after a column of 
“army ants” has minutely explored a dwelling not a bug, beetle, 
cockroach, mouse, rat, snake or other pest remains behind. 
Much has been written on the habits of these and related ants, 
so I will not extract in detail from my notes the observations 
there recorded concerning their column formations, tunnelling 
under streams, forming living bridges over water, removing 
or elevating obstacles from their line of march, etc., etc. 
*Jour. Trop. Med., 1906 p. 31; Boston Med. and Surg. Jour., 1906 p. 
480. 
