1919] Alexander: Japanese Crane-Flies 345 



Rostrum and palpi dark bro^\^l. Antennae rather short for this 

 genus of flies, dark bro\vnish black, the flagellar segments with the 

 posterior face straight, the anterior or inner face gently convex. Front 

 and a broad margin around the eyes yellow, remainder of the head 

 shiny black, microscopically punctured. 



Pronotal scutum dark, the scutellutn yellow, darker medially. 

 Mesonotal praescutum with the disk black, subopaque, with deep, 

 impressed longitudinal grooves in the usual interspaces; scutal lobes 

 and the posterior half of the postnotum black, remainder of the 

 mesonotum yellow. Pleura pale whitish yellow, the stemopleura and 

 mesopleura, as well as an oval spot cephalad of the base of the halteres 

 shiny black. Halteres pale yellow, the knobs scarcely darker. Legs 

 with the cox£e light brown, the outer face marked with darker brown; 

 trochanters dull yellow; femora yellow, the tips broadly black; tibiae 

 brownish yellow, tipped with black; tarsi black, the base of the meta- 

 tarsi a little paler. Wings broad, grayish yellow, the basal and costal 

 areas brighter; stigma dark brown, oval; veins dark brown. Venation: 

 cell 1st Mo not greatly elongated; cell Mi short-petiolate. 



Abdominal tergites reddish brown, the segments margined laterally 

 and caudally with black; in some specimens these markings completely 

 cover the dorsum; stcmites reddish, indistinctly margined laterally and 

 caudally with dark brown; male hypopygium greatly enlarged, black; 

 ovipositor black. 



Habitat: Japan. 



Holotype, &, Saitama, May 29, 1919 (R. Takahashi). 



Allotopotype, 9 , May 31, 1919. 



Paratopotypes, 2d^s. 



Liogma Osten Sacken. 



Liogma serraticornis sp. n. 



General coloration deep shiny black; flagellar segments in the male 

 deeply serrated ; wings with the stigma yellow or brownish yellow. 



Male- — Length about 15 mm.; wing, 12-12.1 mm. 



Female — Length about 14 mm.; wing, 12 mm. 



Rostrum dark brown; palpi yellowish brown. Antennae with the 

 scape brownish yellow, the flagellum dark brownish black, the flagellar 

 serrations in the male sex very long, considerably more so than in L. 

 kuwanai; there are seventeen segments, the last two of which are slender 

 and not serrate. Head shiny black. 



Thoracic dorsum shiny black, the postnotum sculptured. Pleura 

 shiny black, the dorso-pleural membranes pale. Halteres yellow. 

 Legs with the coxae largely black on their outer faces; trochanters dull 

 yellow; femora pale yellow, the tips broadly black; tibiae yellowish brown, 

 the tips blackened; tarsi black. Wings with a strong yellowish gray 

 tinge, the costal region, the stigma and the space between Cu and the 

 abortive anal vein behind it yellomsh; veins dark bro\\m, excepting 



