272 NOTES ON TA8MANIAN DIPTEUA, ETC. 



or whitish markings mixed with the black. Abdomen with 

 black markings on basal segments as in typical nitidus. 

 Legs uniform yellow; the black claws, and yellow spurs on 

 the anterior tibiee, ixiuch smaller in proportion to 'he typi- 

 cal nitidiis. 



A comparison of dimensions between the female typical 

 species and the variety is of interest. 



Fem. typical nitidus. Fern. var. di-^siiniUs. 

 Length 18-22 mm. 22 mm. 



Maximum width 



across thorax . 3 mm. 4 mm^. 



Maximum width 

 across abdo- 

 laen 



2 - 2.5 mm. 4 mm. 



Hab. Mt. Wellington, 2,000ft. 10th January, 1916. 



