Dr. M. Burr — yiotes on the Forficularia. 49 



and darker. In the females the two form.s occur in about 

 equal numbers. 



The brachypterous and macropterous forms are, at first 

 f^lance, very different in appearance, but I am convinced that 

 it is merely a case of dimorphism, such as is common in 

 earwigs. 



Labia owenii, sp. n. 



Parva, colore atro, forcipe alisque aurantiacis ; corpus piloaum ; 

 pygidium c^ prominens, fere parallekim, apice bispinuloso ; for- 

 cipis braccbia d arcuata. 



^6. $. 



Long, corporia 5"5-6 mm. 6 mm, 



„ forcipis 1 -1*5 ,, l'l-5 „ 



Small; densely clothed with bristles; general colour jef- 

 black, the wings and forceps deep orange. 



Antennge with 13-1.4 segments; fourth about half as long 

 as third, fifth nearly equal to third ; all cylindrical ; 1-2 

 black, 3, 7, 8 orange, the rest blackish. 



Head smooth, tumid, sutures obsolete, broad, jet-black. 



Pronotum jet-black, transverse, all sides very gently con- 

 vex, angles rounded ; prozona feebly tumid ; covered with 

 close, short, yellow pubescence. 



Elytra broad, jet-black, densely clothed with black bristles 

 and golden pubescence. 



Wings with golden pubescence, deep orange-red, with 

 black sutural band. 



Femora and tibiae black, the former rather thick ; tarsi 

 yellowish. 



Abdomen broad, jet-black, with golden pubescence. 



Last dorsal segment smooth; transverse in (^ , narrowed 

 in ? . 



Penultimate ventral segment (^ broad, posterior margin 

 roundly emarginate on each side, with a rounded median 

 lobe ; in ? rounded. 



Pygidium (J prominent, depressed, nearly parallel-sided, 

 gently narrowed apically, the apex itself roundly concave, 

 with a sharp spine on each side ; in the $ almost conical, 

 strongly narrowed, with two minute spinules at the apex. 



Forceps with the branches in J deep orange, tipped 

 with black, gently arcuate. 



West Africa: Liberia (2 (^ , ^ , S. G. Owen, c. m.). 



Ann. & Mag. N. Hist. Ser. 8, Vol. viii. 4 



