THE EARWIGS OF CEYLON. 333 



Forfiaula cingalensis, Dohrn., 1865,Stett. Ent. Zeit.,xxvi,, 89. 

 Borm., 1900, Forf.128. 

 This species is totally unknown to me, and so I give Dohrn's (description 

 in detail, Dohrn includes it in his section of Forficula, which corresponds 

 to Apterygkla, but until the male is discovered it is impossible to locate its 

 position with accuracy ; the most noticeable points in the description are 

 ihe form of the forceps, ( 9 ), the pronotum and elytra more or less dilated 

 posteriorly, the absence of wings, and the small siz3 of the: glandular folds. 



OPISTEOCOSMIA, Dohrn. 



Small or medium-sized insects ; body convex, not greatly flattened. 

 Antennae, with the exception of the first, which is long and conical, and the 

 second, which is short, with long cylindrical segments. Pronotum consider- 

 ably narrower than the head, quadrate. Elytra well developed, projecting 

 well beyond the pronotum at the rounded shoulders. Wings usually well 

 developed. Abdomen, more or less dilated in the middle, attenuated poste« 

 riorly ; last abdominal segment small. In the $ the forceps are long, slender, 

 more or less complicated, twisted into various directions, armed variously 

 with teeth ; in the $ the branches are slender, straight and subcontiguous. 

 Legs long and slender ; first tarsal segment slightly longer than the third, 

 the second short and lobed. 



Opisthocosmia, Dohrn., 1805. Stett. Ent. Zeit., xxvi., 76, Dorm,, Kirb, 

 This genus distinguished easily, by the long cylindrical antennal segments, 

 the slender legs, the broad shoulders of the elytra, and by the slender 

 forceps, which are of remarkable shapes in:the male. 



Table of Species. 

 1, More or less stout insects ; forceps 

 comparatively stout ; general colour 



dark-brown, varied with red 1. HUMERALIS, Kirb. 



1*1. Snaaller and slender insects ; forceps 



very slender ; colour testaceous. 



2. Wings perfectly developed 



3, Abdomen unarmed. Forceps ^ 

 with one tooth (sometimes 



obsolete), and no basil tubercle... 2. SIMPLEX, Borm, 

 3'3. Penultimate abdominal seg- 

 ment toothed. Forceps ^ 

 with two teeth on each branch, 

 and a basal tubercle above... 3, CEYLONICA, Motsch. 



2-2. Wings abortive.... 4. NEOLOBOPHOROIDES, n. 



OPISTEOCOSMIA HUM ERA LIS, Kirb. 



Glabrous, shining. Head red, the eyes greyish-black, antenna with 11 

 segments dark, except the first which is pale. Pronotum, elytra and wings 

 fuscous, with the lateral margins of the pronotum, an oval spot on the elytra 

 18 



