PROLABIA ARACHIDIS. 39 



1916, warehouse in the City (Moore). Yorkshire : 1915, 

 Tannery at- Doncaster (Gorbett). 



Genus 5. FORFICULA Linn. 



Forficula LINN. Syst. Nat. (ed. 10), vol. i, p. 423 . . . . 1758. 



DESCRIPTION.- -Linnaeus describes the genus : "An- 

 tennae setacege. Elytra dimidiata. Aide tectae. Gauda 

 forcipata." He gives two species, auricularia and 

 minor ; and in a foot-note lie adds : " Forficulse Larvat 

 ntjiles cursitantes sunt." At present this genus alone 

 contains some 40 species, of which Forficula auricularia 

 Linn, is the type. 



In Forficula the antennas have 10-15 segments, all 

 being quite cylindrical or almost so ; pronotum more 

 or less rectangular ; elytra well developed, smooth, 

 and keelless ; wings sometimes prominent, at others 

 abbreviated or absent ; legs rather slender ; abdomen 

 somewhat flattened, broadest near the middle, then 

 narrowing to the apex- -slightly in the male, more 

 decidedly in the female ; lateral scent-folds distinct ; 

 pygidium of male small and globose or produced and 

 prominent ; callipers of the male flattened towards the 

 base and there armed with teeth, then more slender 

 and incurved ; callipers of the female in contact, simple 

 and straight. 



o 



1. Forficula auricularia Linn. 

 (Plate II, figs. 6, 7.) 



a LINN. Syst. Nat. ed. x, vol. i, p. 423 . 1758 Forficula. 



LINN. Faun. Suec. p. 234 . . . 1761 Forficula. 



STEPH. 111. Brit. Ent. vol. vi, p. 4, pi. 



xxviii, f. 1 . . . . . . 1835 Forficula. 



neglect a MARSHAM Eiit. Brit. vol. ii, p. 529 . 1802 Forficula. 



media MARSHAM Ent. Brit. vol. ii, p. 530 . 1802 Forficula. 



borealis STEPH. 111. Brit. Ent. vol. vi, p. 5, pi. 



xxviii, f. 3 . . . . . . 1835 Forficula. 



ord pi it, i STEPH. 111. Brit. Ent. vol. vi, p. 6. pi. 



xxviii, f. 4 1835 Forficula. 



i BnUNNER Prod. Ear. Orth. p. 12 . 1882 Forficula. 



