MICEODROMIA. PHYLLODUOMIA. 367 



of 5tli longitudinal vein absent or abortive; anal vein generally 

 absent ; no stigma. 



Range. Europe, Siberia, India, Java, North America, Chile. 



Life-history. The metamorphoses are known of pnec'itoria, 

 Eln., a European species of Jfemerodromia, of which Microdromia 

 is generally regarded as a subgenus, and Brocher has described 

 and figured them.* The larva lives in mud in streamlets, the 

 pupa being also aquatic. 



The perfect insects frequent the borders of woods and lakes, or 

 humid places, generally on low herbage and in grass. 



302. Microdromia dorsalis, Brun. 



Chelipoda dorsalis, Brunetti, Rec. Ind. Mus. ix, p. 33 (1913). 



c? $ . Head blackish ; proboscis pale yellowish, very stout at 

 the base, the upper piece prolonged into a long hard shining 

 rostrum ; antennas wholly pale yellowish white. Thorax brownish 

 yellow ; dorsuin black or dark bro\vn, the colour extending more 

 or less over the sides ; scutellum and metanotum concolorous with 

 dorsum. Abdomen brownish yellow ; the dorsum of each segment 

 black, thus forming a continuous black stripe from base to tip, 

 but the hind borders of some of the segments escape the black 

 colour ; venter brownish yellow. Geniralia in <S large, whoHy 

 black, rather complex, comprising at least a pair of claspers, which 

 are stout at the base and with flexible finger-like appendages ; 

 also a long narrow ventral style. ^f(/s very pale yellow ; fore 

 femora with a row of very short microscopic spines, fore tibia3 

 possessing two such rows ; the fore femora also have a row of 

 long stiff bristly hairs on the underside and two still longer ones 

 below near the base. Winr/s clear, veins brown ; halteres pale 

 brownish yellow. 



Length, 2 mm. 



Described from three specimens in the Indian Museum, taken 

 at the edge of a small stream at Barogh, Simla Hills, 5000 ft., 

 10. v. 1910 (Annandale). 



Genus PHYLLODROMIA, Zett. 



P/it/llodromia, Zetterstedt, Isis, 1837, p. 31. 

 Chiromantis, Kondani, Dipt. Ital. Prod, i, p. 148 (18o6). 

 Thamnodromia, Mik, Wien. Knt. Zeitg. v, p. 278 (1880). 

 Litanomyiu, Melander, Trans. Amer. Ent. Soc. xxviii, p. 231 (1902). 



GENOTYPE uncertain.t 



Head rather elongate and flattened, broader than thorax : eyes 

 large, elongate, separated in both sexes, subcontiguous below 



* Ann. de Biologie Lacustre, iv, p. 44, ligs. 1, 2 (1909). 



t There seems some obscurity as to the genotypes of CheUpoda and 

 J'hyllodromia, which it is impossible to clear up here owing to the " Mom. Soc. 

 Sci. Lille" not being available in India. Rondani in 1856 selected /<://>/"< 

 melanocepliala, F., as type of Phyllodromia, the same species which Coquillett 

 chose as type of Chelipoda in 1910. 



