100 
O. Kröber: 
Segments black, covered with gray pollen, pile black; legs, except 
knees and pulvilli, black; wings tinged with brown, veins black, 
first posterior cell closed, petiolate, with the petiole longer than 
the small cross-vein. Len^h 5 mm. 
One specimen: Arizona. 
Near Z. palpalis'Robts., but differs in the short palpi, shining 
spot on humeri, and whoJly pollinose fourth abdominal segment.*' 
20. Zodion bicolor Will. 1. c. p. 35. 
(J: ,, Black, gray pollinose; face and cheeks yellowish white, 
front fulvous, darker on upper half, antennae red, hairs and arista 
black, occiput largely, and proboscis with the small palpi wholly 
black, thorax thickly gra^^ pollinose, pile black, halteres yellow; 
first Segment of abdomen black, remaining segments red, pile 
black, legs reddish, with front and middle femora on top and hind 
ones near apex, all tibiae and tarsi near apices black; wings, except 
base, tinged with browm, first posterior cell closed and petiolate, 
petiole short er than the small cross-vein. Length 5 mm. 
Two specimens; Douglas county, Kansas.*' 
21. Zodion abitus Will. 1. c., p. 33. 
$: ,, Black, grayish pollinose; face and cheeks yellow, in some 
light silvery, front black on upper part, fulvous near antennae, 
occiput black on upper half, proboscis black, palpi small, yellow, 
antennae rufous, with black hairs, arista black at base, mesonotum 
black, gray pollinose, with two short indistinct black lines, pleurae 
and scutellum black, gray pollinose, the former devoid of pile 
except on stemo-pleurae ; abdomen black, subshining, sides of 
second, midde and sides of third and following segments gray 
pollinose; legs except knees, uniforrnh^ reddish-yellow; slightly 
infuscate, lighter near base, veins brown first posterior cell closed 
and petiolate, petiole shorter than the small cross-vein. Length 
4,5 mm. 
Two specimens; Kansas and Massachusetts. 
This species is dose to Z. fulvifrons Say, but differs from it 
in size, the sub-shining abdomen, and closed posterior cell.“ 
22. Zodion auricaudatum Will. 
$: Untergesicht und Stirn satt ockerfarben, Untergesicht 
intensiv silberweißglänzend; die Gruben seidig weißgelb. Oberer 
Teil der Stirn und Scheitel tiefschwarz. Grenze der Farben gerade; 
sehr scharf. Augenrand linienfein weiß eingefaßt. Jederseits neben 
den Ozellen tritt ein kleiner, gelber Tomentfleck auf. Hinterkopf 
mattschwarz, nach unten etwas in Grau übergehend. Beborstung 
zart, schwarz. Rüssel etwa zweimal kopflang, stark, schwarz. 
Fühler kurz, dunkel rotbraun; drittes Glied kaum halb so lang als 
das zweite. Erstes und zweites Glied dicht schwarz beborstet. 
Unterseite vom zweiten und dritten Glied rotgelb. Borste kurz 
