ORTHOPTERA NOT YET BRITISH. 127 



Brunner lays too great stress upon the importance of the 

 presence of a small black spot on the elytra of biguttulus where 

 the marginal vein meets the radial vein. Krauss observes that 

 this is also to be seen in bicolor, as I myself have noticed. 



Krauss criticises Brunner's diagnosis, and re-establishes it 

 as follows : — 



Stenobothrus biguttulus (Linn.). — $ . Elytra valde dilatata, mar- 

 gine antico arcuato-producto, area scapularis et exterriomedia ampliatae, 

 nitentes, pellucidse, venas radiales prima et secuuda subflexuosae. 

 2 . Elytra paululutn dilatata, margine antico arcuato, area scapularis 

 leviter ampliata. 



Stenobothrus bicolor (Charp.). — 3 . Elytra parum dilatata, mar- 

 gine antico arcuato, baud producto, area scapularis parum, area ex- 

 terno-media baud ampliata, vena3 radiales prima et secunda rectissimas. 

 2 . Elytra valde attenuata, margine antico subrecto, margine postico 

 parallelo, area scapularis baud ampliata, angusta. 



Mr. Eland Shaw * was the first to recognize the fact that it 

 is not at all improbable that S. biguttulus should occur in this 

 country. In my ' British Orthoptera " t I have referred to this 

 chance, and given, very briefly, the points of distinction. 



On the Continent S. bicolor is the commoner species, and 

 occurs in fields and open places, whereas S. biguttulus is found 

 in woods. Bicolor is found throughout Europe from the most 

 northern districts to the Mediterranean Sea ; biguttulus is distri- 

 buted, according to Brunner, from Scandinavia to the Alps, but 

 does not occur in the extreme south. Finally, the stridulation 

 of the two species is quite separate, but I cannot give the 

 distinction, as I am not familiar with the chirp of biguttulus, 

 which is due to the difference of venation. 



Tettix fuliginosus (Zett.). — This rare species is at present 

 only known from Norway, Lapland, and Siberia, but it might 

 very well occur in the North of Scotland. It is considerably 

 larger than either of the two known British species of the genus. 

 Together with Paratettix meridionalis (Bamb.) it differs from 

 subulatus in having the keels of the middle femora with the edges 

 wavy, whereas they are straight in subulatus. With subulatus it 

 differs from biguttatus in having the pronotum more or less 

 flattened and not so tectiform as in the latter species, and in 

 having the central keel considerably less elevated. (Meridionalis 

 is essentially a southern species.) Fuliginosus further differs 

 from subulatus in having the under part of the hinder tarsi 

 sharply cut off into separate pads. This point is somewhat 

 difficult to distinguish. Only the female is known to Brunner, 

 who gives the dimensions as follows : — Length of body, 11 mm.; 

 length of pronotum, 15 mm. 



Bellagio, East Grinstead : May 9th, 1898. 



::: E. M. M. xxv. 1889. f Page 37. 



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