1918] Japanese Crane-flies 447 



beneath, darker brown above; flagellum black. Head blackish, 

 with a sparse brownish-gray pruinosity; genae dull yellowish. 

 Frontal tubercle prominent. 



Mesonotal praescutum brownish-gray, with four distinct 

 shiny black stripes, the median pair elongated, narrowed 

 behind, becoming obliterated just before the suture; the 

 remainder of the thorax black, sparsely silvery-gray pruinose, 

 especially on the pleurites. Halteres short, light brown, the 

 knobs darker. Legs with the coxee blackish-gray; trochanters 

 rusty yellow; femora rusty yellow, the tips blackened, these 

 broadest on the fore femora, narrowest on the hind femora; 

 remainder of the legs dark brown. Wings slightly infumed, the 

 costal cell brownish; stigma small, rounded; indistinct brown- 

 ish seams along the veins and deflections ; an indistinct yellowish 

 spot before the stigma. Venation : Rs elongate ; cell M\ lacking. 



Abdomen black, sub-shiny. 



Tricyphona vetusta Alex. 



Osaka, April 27, 1917 (Nohira). 



Erioptera (Acyphona) asymmetrica Alex. 

 Kioto, April to June, 1916 (Nohira). 



Erioptera (Hoplolabis) asiatica Alex. 



Kioto, April to June, 1916 (Nohira). 



Female. — Length, 5 mm.; wing, 4.4 mm. 



Rostrum and palpi brown. Antennas dull yellow; apical 

 segments a little more brownish; flagellar segments short-oval. 

 Head yellowish-brown. 



Thorax brownish-yellow; if any bloom is present, it is 

 destroyed by emersion in alcohol; the usual brownish stripes 

 present on the praescutum; pseudosutural foveae distinct, dark 

 brown. Pleura dull yellow, the mesopleura more brownish. 

 Halteres yellow. Legs with the coxae brown, the posterior coxae 

 darkest; trochanters dull yellow; femora yellowish, brownish 

 at the tips; tibiae yellow, narrowly darkened apically; tarsi 

 brown. Wings subhy aline, or whitish, with a heavy brown 

 pattern; about seven brown marks along the costal margin, 

 the largest at the base of the sector, tip of Sci and tip of Ri, the 

 last at the tip of vein JR4+5; similar but smaller brown marks 

 along the cross-veins and deflections and along the margin at 



