SIMULIIDJ6. 



147 



is a foot protuberance with bristly booklets ; and the. end 

 of the abdomen has several appendages for attachment. 



Fig. 45. Simuliidae. Simulium, wing; la, Siniuliuni, front tarsus; 



2, genus nov., wing; 2a, id. head, front view; 2b, id. head, side view; 



3, Simuliuin, antenna. 



But a single genus, Simulium, has hitherto been known 

 in this family. What seems to be a distinct genus has 

 long been known to me in a single imperfect specimen 

 from the West Indies. The form will, I hope, be recog- 

 nizable from the accompanying illustrations made by me 

 many years since. (2, 2a, 2b) . The specimen is exceed- 

 ingly minute, and was discovered closely applied to and 

 sucking the juices from the antenna of a phasmid. The 

 antennae and palpi are mostly wanting in the specimen. 



