ORTALID^E EUXESTA. 159 



oval, generally somewhat infuscated on the outer side, towards 

 the tip. The larger portion of the rather excavated face shows 

 a steel-blue, shining color, which is but little concealed by the 

 whitish pollen ; the projecting clypeus also has a steel-blue 

 reflection. The first joint of the flattened, black ovipositor is of 

 moderate breadth. Feet pitch-black, femora almost bluish-black, 

 knees and basis of all the tarsi brick-red. Halteres of a dirty- 

 whitish or yellowish color. Wings hyaline, almost grayish, with 

 very dark veins ; the root of the wings up to the humeral cross- 

 vein and a little beyond, blackish ; the whole stigma, as well as 

 the tip of the costal cell and a spot connected with the latter 

 and reaching as far as the fourth vein, are black; at the apex of 

 the wing there is a large, triangular black spot, covering the tip 

 of the marginal and the end of the submarginal cell, and, more- 

 over, crossing to a considerable extent the third longitudinal 

 vein, so that its posterior limit is not far from the fourth longitu- 

 dinal vein and runs parallel to it. The last section of the fourth 

 longitudinal vein is only very gently curved and converges 

 towards the third in its whole course, approaching the latter 

 considerably towards its end. 

 Hob. West Indies (coll. Wied.). 



6. E. quaternaria LOEW. 9. (Tab. IX, f. 11.) Nigro-violacea, 

 dimidio apicali abdominis flavo, alarum maculis costalibus quatuor 

 nigris. 



Blackish-violet, second half of the abdomen yellow ; wings with four spots 

 along the anterior margin. Long. corp. 0.12 0.14 ; long. al. 0.13 0.14. 



SYN. Euxesta quaternaria LOEW, Berl. Ent. Zeitschr. XI, 302, Tab. II, f. 11. 



Blackish-violet, the middle of the thoracic dorsum, a large 

 portion of the pleurae and the sides of the abdomen often more 

 blackish-blue. Front rather narrow, ferruginous, along the orbits 

 of the eyes with a very delicate border of white pollen and with 

 coarse black hairs ; the little stripes, running from the vertex 

 down the sides of the front are blackish, but hardly shining. 

 Antenna ferruginous-brown, more reddish at the basis, sometimes 

 of a lighter coloring ; the third joint is rounded. Face, including 

 the but little projecting clypeus and the cheeks brownish-red, less 

 excavated than in most of the other species. Occiput for the 

 most part black. Thoracic dorsum with a thin covering of 

 whitish-gray pollen, and hence but little shining ; more so on its 



