Notes on Dyscritina longisetosa, 23 1 



The similarity of structure to that of the Forficulidai 

 is most marked in the specimen under examination. On 

 each of two tergal plates, near the base of the abdomen, 

 appear a pair of well-marked glandular folds, correspond- 

 ing with the scent-glands found in a similar situation in 

 many earwigs. On the ventral surface, the sternal plates 

 of the thorax are very large and broad, each projecting 

 backwards, and covering part of the following segment. 

 The legs are widely Separated, and the cox^ small and 

 cylindrical. The tergal and sternal plates of the abdo- 

 men are fitted together in the imbricating fashion which 

 is almost peculiar to the ForficuUdx. The extremity 

 of the abdomen, between the cerci, is closed by a 

 vertical plate divided transversely into two or more 

 pieces. 



The specimen from which the above notes were taken, 

 is now deposited in the Natural History Museum, Crom- 

 well Road. Westwood's type of the insect is presumably 

 in the Oxford Museum. 



