of the Ninth Sternite in the Male Earwig. 271 



small dilatation : the total length is about twice that of 

 the sternite. 



In Psalis pulchra, Rehn, the sternite is about as broad 

 as long, the posterior margin with a shallow, rounded 

 emargination, and a pair of tufts of small -bristles : the 

 sides of the manubrium are remote at the base, but less so 

 than in the preceding species, rapidly converge, and gently 

 dilate towards the apex. The total length is about double 

 that of the sternite. In Lahidurodes robusius, Dubr., it is 

 shorter than the sternite, narrow at the base, and dilated 

 at the apex. 



In Euhorellia greeni, Burr (in a specimen from the Sher- 

 varoy Hills), it is three times as long as the sternite, the 

 sides almost contiguous at the base, and feebly dilated at 

 the apex. 



In E. stali, Dohrn, the sternite is about as broad as 

 long, the manubrium, nearly three times as long, almost 

 contiguous at the base. 



In Gonolabis picea, Bor., the sternite is transverse, and 

 the manubrium, as in E. stali, is about three times as long 

 as the plate itself. In Anisolabis infelix, Burr, it is about 

 twice as long, and in Euborellia moesta, Gene, it is a little 

 less than twice as long. 



When we come to Psalis femoralis, Dohrn, we find quite 

 a different type of manubrium, which is relatively broad, 

 the length being about double the width, and the tip itself 

 broadly rounded ; it is obviously not a Psalidine manubrium, 

 approaching more nearly to that of Labidura; but the 

 male genital armature is also quite characteristic, and at 

 once different from that of the Psalinae and of the Labid- 

 urinae ; this will be described and figured in another paper, 

 where I shall propose the erection, not only of a new genus, 

 but even of a new subfamily, for the little brown Indian 

 and Singalese earwig that is known as " Psalis "femoralis. 



In the Eudermaptera, we do not find very much variety ; 

 the species illustrated, representing seven genera, belong- 

 ing to the Labiinae, Chelisochinae, Anechurinae and Forfi- 

 culinae ; they are rather broad and short, gently narrowed 

 at the tip; only in Marava ivallacei, Dohrn, do we find 

 different form; but this is a single specimen, in not very 

 good condition. 



