can be recognized by its broad vertex, finely punctate wing 

 veins and distinct male genitalia. 



The original description is quoted here. 



"Vertex broad, narrowed anteriorly, deeply notched posteriorly; 

 frons longer than broad; the clypeus shorter than the frons, much 

 more deeply inserted. Pronotum rather long, the posterior margin 

 triangularly emarginate, the sides nearly straight. Mesonotum with 

 five carinae distinct, the intermediate carinae broadly arched. Male 

 pygofer short, broad, the ventral sinus broad, median tooth broadly 

 expanded apically, the apical border but little reflexed, genital styles 

 slender, broadly curved, the apical portion but little widened; the inner 

 margins short, not contiguous, the outer angles but little produced; 

 the anal segment hood-like, rounded on the apex, which is strongly 

 deflexed, almost touching the apex of the median tooth. 



Color: General color blackish fuscous, the wings strongly infus- 

 cated, veins darker, finely punctate; frons blackish fuscous, the 

 carinae but little paler; clypeus ruf o-f uscous ; carinae distinctly paler; 

 venter and femora fuscous, with tibiae testaceous brown, with fus- 

 cous rings; abdomen black, the segments narrowly bordered with 

 pale yellow, male genital pieces brown. 



Length, apex of head to apex of abdomen 5.'00 mm.; to the tip 

 of the wings 7.20 mm." 



Oliarus vitreus METCALF 

 (1923 Jr. Elisha Mitchell Soc., 38, p. 180) 

 Known only from Southern Pines, No. Carolina. May 

 be recognized by its large size, glossy blackish color and 

 distinct male genitalia. 



The original description is quoted here. 



"Vertex narrow, triangularly narrowed anteriorly; frons narrow 

 between the eyes, broader below; pronotum deeply notched posteriorly; 

 mesonotum with five distinct carinae; forewings uniformly punctate; 

 male pygofer with a long median tooth, genital styles slender with a 

 distinct elevated ridge, their apices much reflexed appearing coiled. 



Color: General color dark, glossy; head, thorax and abdomen black, 

 clypeus not distinctly paler than the frons; legs uniform dark tawny; 

 fore wings glossy, much infuscated and marked with blackish, there 

 is usually a broad distinct transverse band from the middle of the 

 costal margin diagonally across the wings to near the apex of the 

 clavus, this band nearly paralleling the lateral borders of the meso- 

 notum. 



Length, male, apex of head to apex of abdomen 6.00 mm.; tips of 

 wings 8.00 mm.; female, apex of head to apex of abdomen, 7.00 mm.; 

 tips of wings 9.00 mm." 



THE GENUS MONORACHIS UHLER 



Thi. genus was erected by Uhler in 1901 for a single 

 brachypt.rous female from Florida. 



65 



