180 



nowhere longer than the bulbs, and the last two nodules 

 subcontiguous ; articular ajDpendages apparently repre- 

 sented by numerous fasciculate soft capillary scales lining 

 the verticils of longer hairs Species No. 20, Brit. 



d.cl. Bristling hair extended subequally and farthest upon the 

 posterior radius, cubitus and anterior pobrachial con- 

 siderably beyond the end of the subcosta ; subcosta, 

 anterior radius, praebrachial and anal nervures without 

 bristling hair ; its endings on the posterior radius, 

 cubitus and anterior pobrachial in a transverse straight 

 line with one another, and those on posterior nervures 

 in a zigzag having the re-entering angle on the posterior 

 pobrachial very near the bifurcation. Wing pointed at 

 the end of the praebrachial nervure. Third joint in the 

 (J antenna similar and subequal in length to the 4tli 

 (the latter has rather a longer beak), bulbose with a 

 tapering beak subequal in length to the bulb, and with 

 an ample cupuliform verticil of hairs ; the beaks longest 

 from about the 4th to the 7th joints ; the last two 

 nodules distant ; articular appendages of the flagellum 

 setiform, long, subspirally curved for three-quarters or 

 one turn from their origin, and overlapping at the tips 

 which are returned in a manner that when out of focus 

 produces the appearance of the two forming together 

 a taenoid loop around the beak . . . Species No. IX, Alg, 



D.D. First joint in the (? antennae shorter than the 2nd joint. Bristling 

 hair extended subequally and farthest upon the cubitus and 

 the anterior pobrachial. Wing pointed at the end of the 

 praebrachial nervure, or quite close thereto. 



d-. Bristling hair wanting on the subcosta, praebrachial and anal 

 nervures ; its endings on the other nervures situated 

 very nearly as in Brit. spp. Nos. 19 and 21 (step c.c. 

 above), but with that on the anterior radius interior to 

 (not opposite) the end of the subcosta. Third joint in 

 the S antennae subequal to the 4th, and bulbose with a 

 dense cupuliform verticil of hairs ; the succeeding 

 joints as far as the 15th similar ; the verticil of the 16th 

 ovoid and closed ; the beaks long from about the 4th to 

 the llth joint 5 articular appendages of the flagellum 

 setiform, long, curved subspirally more than one turn, 

 their extremities overlapping and returned... 



Species No. 24, Brit. 



d?d? Bristling hair wanting on the subcosta, praebrachial, pos- 

 terior pobrachial and anal nervures ; its endings on other 

 nervures from the anterior radius to the postical exterior 



