The Crane-flies of South Africa. 221 



Palpi very short, only about as long as the prolongation of the head 

 plus the mouth-parts, the last segment oval, the basal segments 

 elongate-oval. Antennae filiform, in the male sex from one and one- 

 half to nearly twice the length of the body, composed of 13 segments ; 

 scape enlarged, the second segment very short, cyathiform, only about 

 one-half as long as wide ; flagellar segments elongate, the third and 

 fourth longest ; thence gradually shortened to the end of the organ ; 

 flagellar segments with short, delicate, pale hairs and a few scattered 

 bristles. In the female the antennae are much shorter, the flagellar 

 segments only moderately elongated. Eyes small, widely separated by 

 the broad vertex ; vertical tubercle prominent, indistinctly bifid. 

 Thorax broad. Legs moderately elongated ; tibial spurs apparently 

 lacking ; claws small, untoothed. Wing venation (Plate IV, fig. 16) 

 with 6'c moderately elongated, extending to beyond mid-length of the 

 long sector ; Sci persistent ; end of JR 2 beyond r entirely atrophied ; 

 but two branches of M attain the wing-margin ; m-cit obliterated by 

 fusion. Abdomen moderately elongated, the male hypopygium simple 

 in structure. 



Genotype, Idiotipnla confluens, sp. n. (Southern Ethiopian Region). 



This curious fly presents many features that are uncommon or 

 lacking in other members of the subfamily, the short palpi, the 

 apparently unspurred tibiae, and, especially, the reduction of the 

 branches of media. 



ImOTIPULA CONFLUENS, Sp. 11. 



Antennae of the male filiform ; palpi short ; wings dark brown, 

 with but two branches of media reaching the wing-margin ; vein R 2 

 atrophied beyond r ; 2nd A short. 



Male. Length, 7'5-8 mm. ; wing, 8'4-9"2 mm. ; antennae, 13'5-14 

 mm. Fore leg, femur, 5*1 mm., tibia, 5*6 mm. ; hind leg, femur 6 

 mm., tibia 5'6 mm. 



Female. Wing, 10 mm. 



Frontal prolongation of the head light brown, slender, moderately 

 elongated, the nasus short, surrounded by numerous stiff yellow hairs ; 

 palpi short, brown, darker outwardly. Antennae filiform, the second 

 scapal segment light yellow, the flagellum dark brown. Head 

 yellowish-brown with a capillary dark brown median line. 



Mesonotal praescutum yellowish-brown with four darker brown 

 stripes, the median pair confluent in front, behind ending before the 

 transverse suture, the lateral stripes continued backward to suffuse 

 the scutal lobes ; scutum and scutellum yellowish-brown ; postnotum 

 greyish. Pleura yellowish-brown with a clear grey pruinosity. 



