264 SUPPLEMENT. 



2 . Front rather wide, black, covered with a greyish dust ; the square shining black callosity with an elongate, 

 pointed projection above. Palpi elongate, slender, and curved downward. Length 10-13 millim. 



Hab. Mexico, Bincon, Dos Arroyos, and Acapulco in Guerrero (H. H. Smith). 



One female and two males. This species will be distinguished from i). scapularis, 

 Macq., from Tehuantepec, by the light yellow tibiae, &c. 



LEPTHXaE (p. 60). 



\ 



^\ PHENEUS. 



Pheneus, Walker, Ins. Saunders, p. 155 (1851). 

 Arthrostylum, Williston, Kans. Univ. Quart, iv. p. 108 (1895). 



l. Pheneus tibialis. 



Pheneus tibialis, Walk. Ins. Saunders, p. 155, t. 4. fig. 3 1 . 

 Arthrostylum fascipennis, Willist. Kans. Univ. Quart, iv. p. 109 2 . 



Hab. Mexico, Xucumanatlan 2 in Guerrero (H. H Smith). — Antilles, Jamaica l . 



A single specimen. The genus has not before been identified since its description 

 by Walker. The antennas have a long, jointed, terminal style, composed of five distinct 

 segments. The front tibiae have a single spur, the others two each. The male is 

 dichoptic ; the wings have the fourth posterior and anal cells closed. 



CHEYSOPILA (p. 60). 



5. Chrysopila plebeia, sp. n. 



<$ 2 • Eyes separated by a linear space. Occiput, front, and face black, covered with bluish- white dust • 

 bulbous portion of the face shining yellow. Proboscis and palpi yellow. Thorax shining yellowish-red 

 the mesonotum brownish, the scutellum and pleurae yellowish. Abdomen reddish-yellow ; second, third, 

 and fourth segments each with a broad brown band anteriorly ; fifth and sixth segments with a blackish 

 band, the seventh wholly black ; in the female the fifth segment is yellow. Wings tinged with brown • 

 stigma brownish-yellow ; the second vein terminates beyond the first at a distance about as great as the 

 length of the anterior cross-vein ; marginal cell but little dilated ; anterior branch of the third vein 

 angulated ; vein between the second posterior cell and the discal cell very short or punctiform. Legs 

 yellow, the tibiae a little darker, the tarsi blackish. Length 7-8 millim. 



Hab. Mexico, Omilteme and Sierra de las Aguas Escondidas in Guerrero, 8000 feet 

 (H. H. Smith). 



Three males and twelve females. In one male the mesonotum has short depressed 

 yellow hair, which is scarcely perceptible in the other specimens. One example has 

 the thorax yellow, with the brown bands of the abdomen almost obsolete. 



6. Chrysopila aterrima, sp. n. 



3 . Deep black, the tip of the femora, tibiae, and basal joints of tarsi yellow or yellowish. Eace somewhat 

 greyish. Eyes broadly contiguous, with an area of enlarged facets above. Mesonotum velvety ; hair of 



