MACEOCERA. 49* 



Auterior branch of 3rd veiu very long', ending 



in costa Mycetobiin.ti. 



Anterior branch of 3rd vein short, more trans- 

 verse, ending usually in 1st longitudinal 



vein , 6. 



Praefurca of 4th vein arising from 3rd vein 



beyond the anterior cross- vein, i. e., the 



cross-vein is really wanting, and the 3rd 



and 4th longitudinal veins are coalescent 



for a short distance 7. 



The 4th vein continuous in nearly the same 



line from its origin from the 5th to the 



fox'k ; anterior cross-vein distinct Bolitophilinje. 



Antennas short and thick-set, often flattened . Ceroplatin.^, p. 55. 

 Antennfe very long and slender, longer than 



the body Macrocrrin^, p. 49, 



Subfamily MACROCERIN^. 



This subfamily consists of only one known genus, Macrocera, 

 which is rather easily recognised by the very long antennae (longer 

 than the body), the superior size of most of the species, the 

 generally conspicuously marked wings, and the coalescence of a 

 portion of the 3rd and 4th longitudinal veins. 



Genus MACROCERA, Mg. 



Macrocera, Meigen, Tllig. Mag. ii, p. 201 (1803). 

 Geneja, Lioy, Atti Istit. Veneto (3), ix, p. 229 (1863). 

 ? Macroura, Berendt, Organ. Reste Bernstein, i, p. 51 (1845),. 

 710171. nud. 



Genotype, " Tlpula longicornis" Mg. (1803), according to 

 some, but the identification seems doubtful. Curtis named zV. 

 lutea as type (British Entomology, p. 637, 1837). 



Head broad, oval, flattened in front; eyes oval, slightly emarginate 

 at the base of the antennae ; ocelli three, of unequal size, placed in a 

 flattened triangle on the front, the anterior one smaller. Palpi four- 

 jointed, cylindrical, the 1st joint small, the following subequal, or the 

 last one longest : antennae 16-jointed, very long, often much longer 

 than the body, arcuate, projecting forward, the 1st scapal joint 

 spheroidal, the 2nd cupuliform, the basal flagellar joints cylindrical, 

 the others filiform, hairy, on the lower side somewhat setulose,. 

 the last two joints densely covered with longer hairs and setae. 

 'Thorax oval, highly arched ; scutellum small, nearly semi-circular; 

 metanotum highly arched. Abdomen depressed, nearly cyhndrical, 

 in the female widest at the middle, in both sexes with seven 

 segments. The genitalia in Macrocera, at least so far as Oriental 

 species go, are rather consistent. A dorsal plate, oblong (bilobed 

 or not) or narrowed, a pair of lai'ge, rather compressed fleshy 



