(54 [January 



sharply and transversely striated, with two longitudinal approximate 

 carinas on the disk, and two more distant ones on each side, the extreme 

 sides reticulated. Wings uniformly dark fuscous, with a rather strong 

 bronze reflection, slightly subhyaline in the first submarginal cell and 

 below it; uervures and stigma blackish. Legs black, sometimes tinged 

 with piceous. pubescent; posterior tarsi, except extreme tips, whitish. 

 Abdomen polished, sub compressed ; first segment elongate, slightly 

 dilated towards the tip, base deeply excavated, flattened towards the 

 tip with a faint carina down the middle; venter piceous, the tip gaping, 

 the ovipositor rather longer than the abdomen, rufous, the sheaths 

 black. Length 5} lines; expanse of wings 10 lines. 



Male. — Like the female, except that the antennae are longer than 

 the body, the four anterior legs entirely piceous and the abdomen more 

 slender. 



Collection. — Eut. Soc. Philad. Three $ , one % , specimens. 



Easily recognized by the deep black color, with the posterior tarsi 

 white. 



Genus MICRODTJS. Nees. 

 Microdus fascipennis. n. sp. 



Yellow, varied with honey-yellow: eyes, vertex, occiput and antennee, black: 

 wings yellowish-hyaline, with a fuscous band across the middle and the apical 

 fourth. 



Female. — Yellow, more or less tinged with honey-yellow, shining, 

 slightly pubescent; eyes rounded, black, as well as the tips of the man- 

 dibles, the vertex and the occiput anteriorly; antenna: black, (tips 

 broken off). Thorax yellow, shining, indistinctly punctured; meso- 

 thorax pale honey-yellow, the dorsal lines deeply impressed, the middle 

 lobe broadly grooved with a faint longitudinal carina on the middle; 

 pectus and pleura polished ; metathorax with sharply defined elevated 

 lines forming several irregular areas, the central one of which is rather 

 small and elongate. Wings long and ample, yellowish-hyaline; a broad 

 band across the middle and the apical fourth, pale fuscous; just below 

 the stigma in the first submarginal cell, a subtriangular hyaline spot, 

 and another one below it near the posterior margin of the wing ; uer- 

 vures yellowish, the stigma and the uervures covered by the fuscous 

 bands, blackish. Legs entirely yellowish, the posterior coxas honey- 

 yellow, (their femora, tibiae and tarsi broken off) ; tarsal claws dusky. 

 Abdomen short, not longer than the thorax, broad and subcorn pressed 

 towards the apex, polished; first segment gradually dilated, smooth, 

 with faint indications of lateral tubercles near the base; apical segments 



