2 88 The Ohio Naturalist. [Vol. II, No. 8, 



A. glanduUferus is related to A. ostreaforin/s, and has, I sus- 

 pect, been introduced from Europe, although not yet known 

 there. It is very easily distinguished from ostrcaformis hy 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 .4. 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 S. 



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 \s the same as A. fernaldi cockerelli; 

 the Canadian Entomologist containing the latter was published 

 before the Kansas Universit}' 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. glanduUferus differs from A. erhorni Coleman M.ss. (on Abies 

 in California) by the much smaller anal orifice, more numerous 

 dorsal glands, well developed second lobe, shape of insect, etc. 



MOULDS INJURIOUS TO FOODS. 



M.\RV DrESB.'VCH. 



The moulds include a number of exceedingly common sapro- 

 phytes which make their appearance on 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 m5'celiuni. Many of these organ- 

 isms, especially the common moulds, occasionall}^ pass through a 

 .sexual reproductive stage, though more conunonly 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. 



