288 
The Ohio Naturalist. 
[Vol. II, No. 8, 
A. glanduliferus is related to A. ostreaformis, and has, I sus- 
pect, been introduced from Europe, although not yet known 
there. It is very easily distinguished from ostreaformis by the 
much more numerous dorsal glands, the form of the second lobe, 
and the position of the anal orifice ; the shape of the female is 
also different. 
It is also closely allied to A. fernaldi Ckll., but that, while 
similar in the shape of the insect and the form of the lobes, differs 
by the very unequal processes of the first interlobular interval, 
the much smaller anterior lateral groups of circumgenital glands, 
and the fewer dorsal glands, which are in fernaldi about as fol- 
lows : First series of 3, second of 9, third of 13, fourth of 8. 
It is also close to A. fernaldi albiventer Hunter, but that has 
not enough dorsal glands ; the form of the median lobes is dif- 
ferent, and the anterior lateral group of glands does not exceed 
12. (A . fernaldi albiventer is the same as A. fernaldi eockerelli; 
the Canadian Entomologist containing the latter was ptddished 
before the Kansas University Quarterly containing the former, 
but Prof. Hunter privately distributed separates in December, 
before the Can. Entomologist appeared. Mr. Parrot’s designa- 
tion was the first in Mss.) 
A . glanduliferus differs from A . erhorni Coleman Mss. ( on A bies 
in California) by the much smaller anal orifice, more numerous 
dorsal glands, well developed second lobe, shape of insect, etc. 
MOULDS INJURIOUS TO FOODS. 
Mary Dresbach. 
The moulds include a number of exceedingly common sapro- 
phytes which make their appearance 011 various kinds of organic 
matter. They differ greatly in form, size and color and belong 
to widely separated orders. As a rule the vegetative state con- 
sists of filaments or hyphae which intertwine or interlace, giving 
rise to an aracnoid or felt-like mycelium. Many of these organ- 
isms, especially the common moulds, occasionally pass through a 
sexual reproductive stage, though more commonly reproduction 
is accomplished by means of nonsexual spores or conidia. 
The various groups of moulds are widely distributed and grow 
very easily. When the spores are set free they are caught in 
currents of air and held suspended in the atmosphere to such an 
extent that in most living rooms hundreds of spores are floating 
around. The nonsexual spores are produced in such enormous 
numbers that whenever a proper food supply and proper environ- 
ment are at hand an abundant crop of mould is developed. 
