46 HWT1SH ORTHOPTttRA 



This, however, \\ as eclipsed by a male taken by H. H. 

 Brindley in the uninhabited islet of Rosevear in the 

 Scillies. The callipers alone in this case measured 

 12'25 mm., while the total length of the insect (which 

 is damaged) appears to be about 32 mm. Burr 

 notices an individual with very small callipers a 

 rare aberration. 



On the visible wing-tip there is often a pale spot, 

 which becomes a very conspicuous adornment of a 

 form from Macedonia, var. conspicua Luc. 



In the summer of 1903 Burr took at Gompton 

 Bay in the Isle of Wight two wingless female ear- 

 wigs amongst typical F. auric/ularia . This is most 

 interesting since the females of this species can 

 scarcely be distinguished from the females of F. 

 decipiens Gene, and F. silana Costa, except for the 

 absence of the wings in the last two species. Have 

 we here a wingless form (apparently unknown pre- 

 viously) of F. auricularia ? , or a species new to 

 Britain ? The latter could be proved only by the 

 discovery of the males.* 



Not infrequently aberrant forms come to hand, 

 chiefly in connection with the callipers : a few of 

 these must be referred to. In April 1898 I took in a 

 garden at Oxford a female with the left branch of the 

 callipers much shorter than the right and twisted 

 (fig. 3, no. 1). Amongst a number of examples found 

 in a garden in the town of Warwick, September 1905, 

 was a male with very abnormal callipers (fig. 3, no. 2). 

 They were long and slender, but the chief peculiarity 

 was that they were soldered together at the base, while 

 the distal part seemed to be jointed to the basal. If 

 this is the meaning of the peculiarity, it is of interest 

 in connection with the fact that the cerci of other 

 Orthoptera are regularly jointed. Also in September 

 1905 R. A. R. Priske took a male (fig. 3, no. 4) at Deal, 

 in which the left branch of the callipers was normal, 

 but the right was large as in var. forcipata, but more 



* Vide ' Ent. Mo. Mag/ (2), vol. xxii, p. 226, fig. 7. 



