BY ARTHUR WHITE. 57" 



This is tlie commonest species of the Tasm;ininn 

 Stratlomyidce, tbousjh somewhat local in its occurreuce. The 

 males may be found dancing in the air and darting tn and 

 Iro at a short distance above marshy ground; in such a 

 situation I have found them common during the latter part 

 of October. The females are more sluggish in their habits; 

 they may be found settled on Idw herbage, and I have also 

 taken a specimen on box bloom. In the late summer odd 

 specimens of both sexes may be found far from water, either 

 on long grass or, occasionally, on fennel bloom. 



Odontomyia marginella Macq. 



Pace, front, and thorax black; abdomen black, vrith a 

 narrow green border ; femora black, tibiae yellow, with a 

 black ring. 



Length. 5 mm. 



Hab. Huou. 



This species resembles 0. amyris, but is distinguished by 

 its small size, and narrow green abdominal border. 



Thei-e is a specimen of this species in the collection of the 

 Department of Agriculture, Hobart. 



Odontomyia carinifacies Macq. 



Abdomen black, with three pairs of small, yellow, widely 

 separated marginal spots; anteunse with a long thin style. 



Length. Female, 8 mm. 



Hab. Mangalore (also in Victoria.) 



Female. Face Idack, witli a n-irrow lulvons margin, which 

 sepai-ates the black of the face from the eyes, and is con- 

 tinued in a narrow fulvous band above the antennae, being 

 separated from the antennae by a black patch, which is a 

 continuation of the black of the face; face with pale yellow 

 pubescence; front above the fulvous band shining black, with 

 pale yellow pubescence ; vertex almost bare. Antennae 

 blackish, tinged a little with red above, and distinctly reddish 

 beneath ; first joint twice as long as the second, third a little 

 longer than the first two together, thickened, and pi'ovided 

 with a pointed style, which is about one quarter the length 

 of the third joint. Thorax black, with short, scanty, yellow 

 pubescence; scutellum with the base black and margin 

 broadly yellow; spines vellow with tips black. Ahdomen 

 distinctly marginate, black, with a pair of triangular, yellow, 

 marginal spots at the lower margins of the second and third 

 segments, a pair of smaller lengthened spots on the lower 

 margin of the fourth segment, and a yellow outer margin to 

 the fifth segment. Legs black, with the knees and basal 

 portions of tibiae and first joints of tarsi yellow brown. 



