The Crane-flies of South Africa. 217 



LONGURIO MICROPTERYX, sp. 11. 



General coloration reddish-yellow, the pleura and abdomen with a 

 blackish lateral stripe ; wings very reduced, in the male sex less than 

 one-half the length of the slender halteres. 



Male. Length 8'5 mm. 



Frontal prolongation of the head short and stout, blackish ; nasus 

 indistinct, represented by a tuft of long black setae ; palpi short, the 

 first two segments longest, subeqiial, the last two segments shorter 

 and nearly equal in length, the basal segment provided with long 

 coarse bristles. Antennae rather short, 13-segmented, the scape dull 

 yellowish, the flagellum dark brown ; first segment of the scape 

 elongate, the second subglobular ; first flagellar segment pyriform 

 with the base very narrow ; second and third flagellar segments slightly 

 enlarged, the remaining flagellar segments rather elongate, covered 

 with a sparse pale pubescence and with moderately long, secuud 

 verticils. Vertex rather narrow, the vertical tubercle low, indistinctly 

 bifid. Head dark reddish-brown. 



Thorax with the mesonotum very flattened, almost as in the genus 

 PlatyUmnoUa. Mesonotum reddish-yellow, with an indistinct dusky 

 lateral line that continues caudad on to the abdomen. Pleura reddish- 

 yellow, clearer yellow underneath the wing-root. Halteres brown, the 

 knobs darker, the stem slender. Legs with the coxae very long and 

 tumid, yellowish, the fore coxae a little darker ; remainder of the legs 

 brown, darkened on the tarsi; legs rather stout, the tibiae longer than 

 either the femora or metatarsi. Wings blackish, very reduced, less 

 than one-half the length of the halteres. 



Abdominal tergites reddish -brown, darkening on the terminal 

 segments, a broad, conspicuous, black lateral stripe extending the 

 length of the abdomen ; sternites yellow, more brownish on segments 

 7 to 9. First abdominal segment long, more than half the length 

 of the second ; eighth tergite telescoped beneath the seventh, only 

 the lateral portions being visible ; impressed areas on the segments 

 reddish, coucolorous with the rest of the abdomen, inconspicuous. 

 Male hypopygium of the normal Longurio type, the ninth tergite very 

 deeply notched medially, the lateral lobes obtusely pointed at their 

 tips ; ninth steruo-pleurite long, narrowed to the blunt tip, the pleura! 

 appendages bearing a row of short black spines as in the other species 

 of the genus. 



Habitat. South Africa. 



Holotype, <$ , Table Mountain, Cape Colony, 1919 (spring) 

 <R.W.E. Tucker). 



Type in the South African Museum. 



