132 E. Brunetti : The Oriental Stratiomyidx. [VOL. I, 1907.] 



ADDENDUM. 



Acanthina argentea, mihi, sp. nov. 



rf Calcutta. Long. 3 mm. Eyes extending the whole height 

 of the head shortly but not thickly pubescent, subcontiguous 

 at nearest point of approach as the frons at this point is receding 

 but attains the surface of the eyes towards the vertex, which is 

 considerably raised and occupied by the ocelli ; facets rather 

 large, of uniform size, Frons, both above and below the nearest 

 approach of the eyes, shining white. Back of head and under- 

 side of head black, inner orbit of eyes below antennae white. 

 Antennae, structurally, exactly as in Wiedemann's generic des- 

 cription, with first two joints black, third reddish-brown with 

 blackish marks: style thick. Proboscis short, yellowish, with 

 a few hairs. Thorax, dorsum and sides, and scutellum black, 

 both uniformly covered with short silvery-grey pubescence. 

 Scutellum with four rather large whitish spines. Abdomen black, 

 covered like the thorax with short silvery-grey pubescence. No 

 signs of any marks or pattern on either thorax or abdomen. 

 Belly black, with short grey hairs. Legs yellowish- white ; femora 

 black, extreme base and tips pale ; tibiae with a broad black band, 

 leaving only the basal fourth and the tip pale. Wings and stigma 

 absolutely colourless, but veins distinct, though pale : alulae very 

 small, brownish-white ; halteres brownish-yellow, knob white. 



Described from a perfect h* in the Indian Museum Collection, 

 taken at Calcutta on 22nd May, 1907. The small size of this 

 species will easily distinguish it from the other two species men- 

 tioned. 



