276 



Annals of the South African Museum. 



with slightly blunt apex. About half a dozen minute bristles round 

 mouth. One short hair at side of head anteriorly, a second midway 

 between oral edge and antennae, and a third slightly behind the 

 second. At ^ from oral edge and line connecting the antennae 

 row of 4 short hairs dorsally placed. At \ from antennae, but 

 below, a row of 4 hairs, of which the middle two are long. Still 

 below and symmetrically placed with the 2 hairs just mentioned 

 there are 2 long hairs. Row of 4 short dorsal hairs at level 

 of antennae, viz., 1 at anterior edge of 1st antennal joint and 



\ 



FlG. 1. L. TIBIALIS EDCHOKE 



1 medianly at side of sucking apparatus. On the dorsum of the 

 head, between the antennae and the angular occiput, a double row of 

 long, strong, median hairs 6 pairs in all, of which the last pair are 

 displaced more into the middle line. Between each row and the 

 edge, and nearer the latter, an anterior and a posterior short 

 bristle, i.e. 4 in all. The lateral bands of the head are elongate 

 before the antennae broad near the base of the 1st joint, and 

 coming to a fine point near the oral edge, where there is a clear 

 region. Behind the antennae the bands are broad above, slightly 

 narrower beneath, where they are sharply excised medianly. An- 

 tennae rather long ; 5-jointed, last 2 joints with sensoria. 



