Die Arten der Platystominen. m 



7. Stenoptei'ina varia Coquillett. 

 Journ. N.-York Entom. Soc, Vol. 8, p. 25 (Stenoptenna) (1900). 



1 cf, Floridca. Nr. 4521. 



„Head yellow, middle of front brownish, a polished black vitta 

 each side of middle of face, outside of each, and tlie orbits white pruinose, 

 antennale yellow, toward the apex brown, palpi yellow, proboscis black: 

 thorax bluish green, the lateral and bind margins, botli ends of pleura 

 and the scutellum yellow, the latter bearing- six bristles: abdomen green, 

 base of 2. segment yellow, last segment dark brown: halteres and legs 

 yellow; wings brown, the bind margin, 2. posterior, and middle of first 

 posterior cell subhyaline, base tinged with yellow, costal cell and a 

 elongated spot on third vein beyond the small cross vein, yellow. 

 Length 12 mm." 



8. Stenopterlna fleorivitta Walker. 



Bricinnia flexivitta Walker, Trans. Ent. Soc. Lond., N. S., \'ol. 5, p. 324 (1860;. 

 — Giglio-Tos, Ditteri del Messico, P. 4, p. 45 (1895). — Loew, Monogr. N.-Aiiicr. 

 Dipl.. Vol. 3, p. 203 (1873). 



Mexiko. 



9. Nigra, capide apud oculos albo, vitta antica albida, antennis 

 ferrugineis basi fulvis, thorace vittis tribus albidis, pectore purpureo- 

 cyaneo, abdomine ciipreo, femoribiis posticis basi flavis, tarsis fulvis, 

 alis sub-cinereis, Costa apiceque luridis, vitta discali angulata nigra, vena 

 discali transversa vix arcuata. 



9- Black, head wählte about the eyes and with a wiiitish facial 

 stripe, which is dilated towards the epistoma; antennae ferruginoiis, 

 tawny tow^ards the base; thorax with three whitish stripes; pectus blue, 

 varied with purple; abdomen cupreous; vagina of the oviduct attenu- 

 ated; bind femora yellow^ towards the base: tarsi sawny; wings greyish, 

 lurid along the costa and at the sips, and with a blackish stripe which 

 extends from the base to and along the discal transverse vein; the latter 

 is upright and hardly curved, and is parted by four times its length 

 from the border, and by a little less than its length from the praebrachial 

 transverse vein, w^hich is oblique. 



Length of the body 5 lines; of the wings 10 lines. 



9. Stenoptcrhia uUiijata Van d. Wulp. 

 Biolog. Centr.-Amer., Dipt., Vol. 2. p. 381, 2, Tab. X, Fig. 7 (1899). 



9, Mexico, Paso del Macho. 



Steel-bhie: thoracic dorsum black, with indistinct grey stripes: 

 legs brow^nisch-red; halteres black; wings sul)hyaline, an apical border 

 and a large space, connected with the border of the posterior cross-vein, 

 brown. — Length 9 mm. 



