i:y (.. ii. HARDY. o'.i 



The writer's convictions of the specific value of the 

 various descriptions will be found embodied in the 

 synonymy and the remarks made thereon. Until the types 

 ar< examined, and the suggestions made in this work are 

 confirmed or corrected, the identification of the majority 

 of the species will be unsatisfactory. 



Genus Odontomyia, Meigen. 

 Eulalia, Meigen, Nov. Class. 1800, p. 21 (name not per- 

 Lbh i Id., Kerl bz, Cal Dipt., iii., 1908, r>. 62 

 (which se< for Bynonymy). 

 Odontomyia, Meig n ill Mag. f. Ins., ii , 1803, p. 265. 

 Id., White Proc. Roy. Boc. Tasm., L914, p. 55. Id., 

 Whiti , P.L.S. N.S.W., Eli., L916, p. 90. Id., 

 Eardy, Proc. Roy. Soc. Tasm., 1917. p. 61. 



Tvpe. — Odontomyia ornata, Meigen Europe. 



Characters. The species of this genus contain a much 

 depressed five segmented abdomen and a scutellum with 

 two spines (aberrant specimens in which these spin - ar 

 absent or deformed an rar and do not eve,' d one in five 

 hundred). The antennae have the third joint longer than 

 the bwc basal joint I, and ii terminates in a short 



style. The wings contain four pos?1 rior veins rising from 

 the discal cell. 



Key to fin Species of Odontomyia. 



1. The Miit: liar 9pines below (nol at the apical margin of) 



ih. scutellum and inconspicuous. The antennas have 

 the two basal joints united nearly as long as tho 

 third. opertanea. 



The lar -pine- conspicuous and situated at the 



aoical margin of the scut Mum. The antennae with 

 thi twi basal joints together much shorter than the 

 third. 2. 



2. The scutellar spines very strong and curved upwards so 



that they have their apices pointing almost per- 

 pendicular to the abdomen. ' scutellata. 

 The scutellar spines normal, their axis lying in a Diane 

 ;il>: in parallel to the abdomen. 3. 

 .'!. Tie scutellar sniries long and straight and as wide apart 

 as in Plat* VIII., fig. 4. The abdominal sidespots 

 sometimes almost confluent, generally 

 triangulai*. The lace always Mack, laterimaculata. 

 The scutellar spine Bhori and closer tog ther, never 

 wider apart than as illustrated on PI. VIII., ii 

 Tf the abdomen has side-spots they an generally 

 small, thin, and quad ; if the 



in larg< they are generally confluent. 4. 



