FAM. EMPIDID/E 
TABLE OF THE GENERA OF THE CLINOCERATIN/E 
A. Anlenne inserled at the middle of the head, the third joint conical 
with a rather short style which. terminates in a. bristle-like 
segment; face not constricted from the cheeks by a suture; eyes 
bare ; no ocellar tubercle ; proboscis short, sharp, chitinous and 
incurved ; anal crossvein. when present. perpendicular to the 
anal vein ; bristles never strong, no humeral brislle, metapleure 
bare ; legs yellowish : 
B. Antenne with the third joint Pisis jciisad, without 
evident style; face not constricted from the cheeks by a suture ; 
eyes bare; uo ocellar tubercle; proboscis short aud fleshy; 
brisiles well developed including the humeral, metapleure 
setulose; dorsal valves of hygidium erect, end valves abruptly 
bent downward; anal. crossvein rectangularly curving, third 
vein furcate . 
C. Antenug inserled above ihe middle y m head, le third joint 
usually with a lengthened. arista; oral. margin of. the. cheeks 
Wilh a more ov less distinct incision or suture extending toward 
ihe eyes; eyes. usually densely pubescent; broboscis usually 
short, vertical, soft and haustellate ; anal cell usually rounded 
at the tip ; bristles of the body always well developed, meta- 
pleure usually bearing. hairs; body dark aud. legs largely or 
wholly black, except in Roederioides . 
2. Anal cell wanting, discal cell apically open, the second posterior 
cell with a long fetiole, first vein ending before the middle of 
ihe wing, third vein furcate; middle femora cy with an 
apophysis on the anterior surface; antenug elongate, the first 
joint as long as the head. (Pl. T, Fig. 87). . . . . Genus CERaTOMERUS, Philippi. 
Anal cell present, discal cell complete, second posterior cell sessile, 
second basal cell long; legs slender, without. armature or 
bristles ; antenne not longer than the head, the first joint small. 
3. Third vein not furcate, anal vein distinct from the under side of 
the anal cell and incomplete, auxiliary vein evanescent ; about 
ten small. dorsocentral bristles, one supraalar, four scutellar, 
ocellar and. vertical bristles present ; costa with a basal bristle 
jresent; bygidium terminal; present; third antennal joint 
damiaexcPI-d. RIESGO) Y — cvy Genus BonEopnouia, Coquillett 
Third vein furcate, anal vein continuous with (he underside of 
the anal cell and. complete to the margin, auxiliary vein 
altaining lhe costa; head, thorax and costa without bristles ; 
epibygium tumid and veflexed; third antennal joint. ovate. 
(PI;SPEIEL29). 55 o Xs . Genus SywaAMPHOTERA, Loew. 
4. Autenne inseríed above the middle of the D ihe third SUM 
Hipped with minute peg-like joint; a vow of acroslichals; 
