ADDITIONS. 



11 (12). Lower fronto-orbital bristles extending beyond the 



middle of the cheeks, nearly to the mouth. 



(1719. rustic a, Mg.) 



12 (11). The lower fronto-orbital bristles not extending beyond 



the middle of the cheeks. (1722. nigricans, Mg.) 



13 (2). 0.4 2 ending rather near the wing tip ; dorsum shining 



blue-black with white dusting and four narrow 

 black stripes. 



(1663. Ceromasia mac hair op sis, B. & B.) 



14 (1). Palpi black. 



15 (26). Legs entirely black. 



16 (19). Abdominal segments with straight black and white 



bands. 



17 (18). White abdominal bands very narrow ; wings short 



with the X-veins and the bent portion of V.4. 

 straight. (1667. Ceromasia brevipennis, Mg.) 



18 (17). The black and the white abdominal bands of nearly 



equal width ; bent portion of V.4. not straight. 



{inorosa, Mg.) 



19 (16). Abdomen tesselated brown and black, forming 



irregular bands, not straight ones. 



20 (21). Bent portion of V.4. straight. 



{agiiis, Mg.= i663. Ceromasia machairopsis, B. & B.) 



21 (20). Bent portion of V.4. not straight. 



411. Brachycoma, Rnd. 



22 (25). Arista pubescent ; cheeks with short bristles. 



23 (24). Abdomen with black waved bands. 



1850. Brachycoma devia, Fin. 

 Hesleden, 3 $, August, 1900. 



24 (23). Abdomen with dark brown triangular central spots. 



(1852. erratic a, Mg.) 



25 (22). Arista with the base sub-plumose ; cheeks bare. 



(1851. smerinthi, Mde.) 



26 (15). Legs black with orange tibiae. 



362. Pelatachina, Mde. (1741. tibialis, Fin.) 



