ART 4 CRANE FLIES FROM SIBERIA ALEXANDER 5 



Genus DICRANOMYIA Stephens 



1829. Dicranomyia Stephens, Cat. Brit. Ins., vol. 2, p. 243. 



DICRANOMYIA IMMODESTOIDES Alexander 



1919. Dicranotmjia immodestoides Alexander, Ann. Ent. Soc. Amer., voL 

 12, pp. 327-328. 



Males from Vladivostock, Siberia, and Olga, Siberia, July 1923. 

 The species has an extensive range in Japan. 



DICRANOMYIA SPINICAUDA Alexander 



1924. Dicranomyia spinicauda Alexander, Philippine Journ. Sci., vol. 24, 

 pp. 545-546. 



Specimens from Kudia River, Amagu, Siberia, July 1923 (T. D 

 A. Cockerell) . The species had been recorded only from Sakhalin 

 and Hokkaido, Japan. 



DICRANOMYIA AMURENSIS, new species 



General coloration dark gray; pleura yellow, the sternopleurite 

 darkened; wings yellowish subhy aline, the stigma pale; Sc short; 

 male hypopygium with the mesal lobe of the basistyle complex; 

 dorsal dististyle bent in the form of a rectangle, the apex narrowed. 



Male. — Length about 6.8 mm.; wing, 8.2 mm. 



Rostrum obscure brownish yellow, the palpi brown. Antennae 

 relatively short, dark brown throughout, the flagellar segments oval, 

 the more distal segments passing into cylindrical. Head dark gray. 



Pronotum dark brownish graj^ medially, yellowish laterally. Meso- 

 notal praescutum brownish gray, a little darker medially, the lat- 

 eral margins indistinctly paler; scutal lobes dark; scutellum yellow; 

 postnotal mediotergite pale basally with a little more than the apical 

 half infuscated. Pleura yellow, the anepisternum with a vague sug- 

 gestion of dusky; sternopleurite with its ventral portion strongly 

 infuscated. Halteres of moderate length, pale, the knobs infuscated. 

 Legs with the coxae yellowish testaceous, the fore coxae a little 

 darker; trochanters brownish testaceous; femora concolorous, the 

 tips infuscated; tibiae pale brown, the tips weakly infuscated; tarsi 

 dark brown. Wings yellowish subhy aline, the base clearer yellow; 

 stigma only faintly indicated; veins brown. Venation: Sc short, 

 Sc^ ending opposite the origin of Rs, the tip of Ri extending a dis- 

 tance beyond r but not reaching costa; Rs relatively long, more than 

 twice the basal deflection of .R4+5; basal deflection of Cu^ at the fork 

 of M. 



Abdominal tergites dark brown, the caudal margins of the seg- 

 ments narrowly pale; sternites infuscated, the lateral margins 



