58 Psyche [April 



A single male collected by Mr. H. H. Smith at Vera Cruz, January, 

 1888, from the Wheeler collection of the American jNIuseum of Natural 

 History. This specimen very likely belongs with the type female, 

 which was collected in Chilpancingo in Guerrero. The two locations 

 are on opposite sides of Mexico. The specimen is glued on a card 

 and is not in the best of condition for description. The type has the 

 third vein nearly straight. Here it is rounded in an even curve diverg- 

 ing from the fourth. This specimen has less of the purplish and 

 bronze tinge to the body. 



The definition characters of Phoneuiisca led us to place this species 

 in that genus. An examination of the true Phoneuiisca bimaculata 

 in the Museum of Comparative Zoology showed it to be quite a differ- 

 ent insect than was supposed. The abruptness of the marginal cell 

 in Phonenii.sca is very striking. 



Tachydromia calva sp. nov. 



Shining black above, paler beneath, outer half of femora blackish. An- 

 tennae black, palpi slender, whitish, dorsum without evident bristles; wings 

 lightly infumated, third and fourth veins sub-parallel. 



Female. Front jet black, triangular; ocelli prominent, occiput with sparse 

 short black hairs; eyes deeply and broadly emarginate at antennae, face 

 obliterated by the contiguity of the eyes, facets nearly uniform. Antennae 

 short black, last joint not as long as broad and smaller than basal joint, the 

 arista subterminal, finely and closely pubescent, nearly five times the length 

 of the antenna. Palpi narrowly elongate, whitish yellow: proboscis very 

 small, black. 



Thorax shining black, the humeri large, so that the thorax is nearly quadrate, 

 a few microscopic dorsal bristles only, a single bristle in front of the wings, 

 scutellum with a pair of short bristles, the scutellum very lightly dusted. 

 Abdomen pitchy black, sub-shining. Coxae, trochanters, basal half of femora 

 and the tibiae yellow, outer half of femora blackened, tarsi a little dusky; 

 front femora somewhat thickened. Halteres yellow. Wings narrow, nearly 

 hyaline, lightly infumated especially noticeable at tip of first vein, marginal 

 cell long, third and fourth veins parallel. 



Described from a single female, presumably collected by Mr. G. R. 

 Pilate as it bears the label, Tifton, Georgia, Sept. 25, 1896. The 

 specimen was presented to me by Dr. G. deN. Hough. It measures 

 one millimeter in length. 



Tachydromia insularis sp. nov. 



Male. Length 1.1 mm. Head and thorax pruinose; legs testaceous; 

 wings clear hyaline; antennae reddish at base; palpi elongate, reddish; 



