a THE ENTOMOLOGIST. 



spots sprinkled with metallic scales towards anal angle on under 

 surface ; eyes quite smooth instead of hairy. Type, E. cnejus. 



Of the species at present in the Museum collection, the 

 following should be placed in Euchrysops : — 



E. cnejus = E. theseus=^E. hapalina, E. contracta, E. ella, 

 E. pandava (of which E. nicola seems to be an intermediate 

 form), E. trifracta, E. cyclopteris, E. naidina, E. lochias, 

 E. hippocrates, E. lois. 



Wallengren's beautiful little species, which I have recently 

 quoted as " Catochrysops mahallokocena,'" has smooth eyes, but 

 may at once be separated from Euchrysops by the close 

 approximation of first subcostal branch and costal nervure 

 (veins 11 and 12), and lack of tails to hind wings; it is nearly 

 related to Chilades trochilus. In Neolyccsna, which has smooth 

 eyes, the third subcostal branch (vein 9) is wholly absent, so 

 that the vein is trifurcate. 



THE ORTHOPTEROUS FAUNA OF THE BRITISH ISLES, 

 BELGIUM AND HOLLAND. 



By W. J. Lucas, B.A., F.E.S. 



In the 'Annales de la Societe Entomologique de Belgique,' 

 October, 1899, appears an article by the veteran Belgian entomo- 

 logist, M. le baron Ed. de Selys-Longchamps, comparing the 

 orthopterous fauna of the British Isles, Belgium, and Holland. 

 A summary of the results arrived at, together with a few notes 

 that seem to be called for in connection with some of the 

 British species, cannot but be of interest to orthopterists in this 

 country also. 



Of the Forficulidse, six species — Labidura riparia, Anisolahis 

 maritima, A. annulipes, Forficula lesnei, Apterygida arachidis, and 

 Chelisoches morio — are British, or have occurred in Britain, but 

 do not appear to have been observed in Belgium or Holland. 

 Labia minor, Forficula auricularia, and Apterygida albipennis are 

 common to the three countries ; while Chelidura acanthopygia 

 occurs in Belgium and Holland, but has not been recorded as 

 British. 



Of these nine species set down as British, L. riparia, A. 

 maritima, and A. albipennis have not been taken for some years; 

 A. annulipes and A. arachidis, although they certainly breed 

 here, do so only under artificial conditions as regards tempera- 

 ture ; of C. morio but two specimens have occurred — a pair 

 which came to Kew in sugar-cane from Mauritius in August, 

 1894 {ante, vol. xxxi. p. 50). 



Six species of Blattidae are found in all three countries. 

 These are Ectobia lapponica, E. livida, E . pan^eri {ericetorum) , 



