from the Philippine Islands. 205 



narrow wings, are those of Nestima. The color of the two species 

 described below is metallic or metallescent, while that of Nestima 

 polita is dark brown. — The two pronglike ventral appendages of the 

 male are less long and less rigid than in Nestima. 



I describe JE. heccapla as the type of the genus. E. semilauta 

 is added, because it has the general shape aud many characters with 

 E. hexapla in common, although by aud by, a separate genus may 

 be established for it. The following description of the geueric cha- 

 racters refers to E. heocapla; the differential characters of E. semi- 

 lauta are added in brackets. 



Head comparatively smaller than in Calohata, slightly produced 

 on both sides of the vertex, with a concavity between [semilauta: no 

 perceptible concavity] , thus showing some resemblance to Cardia- 

 cephala Macq.; cheeks narrow. Antennae: scapus short, third joint 

 oblong, about twice as long as it is broad; arista short-plumose 

 on both sides, but on its proximal half only [semilauta: arista plu- 

 mose]; palpi slender; clypeus rather large, projecting [semilauta: 

 palpi?; clypeus almost concealed under the oral edge]. 



• Thorax elongated, attenuated in the shape of a truncate cone in 

 front; the mesonotum shows a slight shallow, transverse depression be- 

 fore its anterior end; the transverse suture is beyond the middle of 

 the mesonotum, well marked; scutellum triangular; metanotum with its 

 upper portion in the shape of a transverse swelling, separated by a 

 distinct transverse depression. On the pleura, the sub-alar suture is 

 distinctly marked; otherwise mesopleura and mesosternum appear smooth 

 and coalescent, the usual suture between them being obsolete. 



Abdomen elongated, slender; the pair of ventral appendages in 

 the male slender, pointed, beset with minute hairs; ovipositor short, 

 convex above [semilauta: ventral appendages of the male stouter at 

 the base, then attenuated and button-shaped at tip; finely hairy; ovi- 

 positor short, flat]. 



Legs: front pair short, inserted near the head, rather distant from 

 the two hind pairs; middle and hind femora but little shorter than the 

 abdomen, of nearly equal length, beset with minute spines on the 

 underside, towards the tip. [semilauta: the middle femora are conside- 

 rably longer than the hind pair.] 



Wings: narrow, comparatively long; second vein closely approxi- 

 mate to the costa in its whole course, ending not long before the apex, 

 and far beyond the posterior crossvein; first posterior cell somewhat 

 attenuated towards the tip, although broadly open; posterior crossvein 

 very near the posterior margin; anterior crossvein before the middle 

 of the distance between the end of the anal cell and the posterior 



14* 



