REPORT OF THE STATE ENTOMOLOGIST [916 89 



introduced camel cricket is about one-half of an inch, while the dis- 

 tance from the tip of the slender antennae to the extremity of the 

 extended hind leg is 2 J to 3 inches. This Japanese species was 

 recorded from Minnesota in [898 and according to a communica- 

 tion from Doctor Howard, has also become established in Kansas, 

 Ohio, Illinois, Rhode Island, Wisconsin and Canadian greenhouses, 

 but has not heretofore been found in New York State. 



The camel crickets are nocturnal in habit and in nature are usually 



Fig. 1 Japanese spotted camel cricket, D i e s t r a m m e n a 



m a r m o r a t a , male (after Lugger) 



found under logs and stones, along streams or in moist woodlands. 

 Occasionally a few specimens may be captured in cellars. They are 

 recorded as having nearly omnivorous habits, readily eating meat, 

 fruit and vegetables. The probabilities of serious injury from this 

 introduced species are not good, and where it becomes sufficiently 

 abundant as to cause apprehension, as was the case at Buffalo, the 

 judicious use of the Kansas bait is the most promising method of 

 destroying the insects. 



Carbon tetrachloride as a museum fumigant. This material was 

 tested the past summer with very satisfactory results. It was used 

 at the rate of approximately one-eighth of a pint to 2 J cubic feet 

 of space. The insecticide was placed in a series of several w r atch 

 glasses so as to secure a maximum evaporating surface and the case 

 closed tightly for two or more days. There was no particularly 

 obnoxious smell about the case though a distinct odor could be 

 detected 48 hours after all the liquid had evaporated. Fumigation 

 of this character killed beetles and larvae but apparently was inef- 

 fective against the eggs of the black carpet beetle, Attagenus 

 p i c e u s Oliv. It is perhaps needless to add that carbon tetra- 

 chloride is much safer for general fumigation purposes than the more 

 commonly used, somewhat obnoxious and explosive carbon 

 bisulphide. 



