The Sphegoidea of Nebraska 49 
Genus Eucerceris Cresson 
SYNOPSIS OF THE SPECIES 
Ground color of insect black, markings fulvous, yellow, or both..... 1 
Ground color of insect yellow, markings fulvous; female with lateral 
lobes of clypeus produced into a conical projection, middle lobe 
flattened; ventral segments 3 and 4 of male with a fringe of long, 
erect bristles on apical middle, and a row of short, erect, evenly 
Cut, appressed bristles om segment five.....:....-..-+--' canaliculatus 
1. Wings clear hyaline excepting’ the costal and apical margins (see 
LIS OE SUL DOU UES hn aia craks terse RiceLa are chevelle « octane ye aoetateve elereletshatese, © 4 
deeWvinies ealisinous, darker ondecostal margin. 2.605 c.ds<0 cee et ene 2 
2. Wings yellowish medially, darker in vicinity of marginal 
cell; front, clypeus, and mandibles, except apex, yellow; 
abdomen usually with broad yellow bands on segments 
1-5 (sometimes partly lacking); collar of prothorax yel- 
low above; metanotum and scutellum entirely black; fe- 
PIE MKE APT ATO) alee Bite, eros Mca OREO Ok OR OC ee Emo e ngs superbus 
2. Wings entirely dark, subviolaceous; apical segments of ab- 
domen entirely black; head very wide; clypeus of female 
with a strong projection on the median lobe............. 3 
3. Abdomen without yellow markings; second and third, sometimes 
ESE aGdOrsaly Se@IMeNts -GULOMS 1. jade es oe es meinem oe bicolor 
3. Abdomen having more or less yellow on basal abdominal seg- 
ments; ground color of basal segments black. .zonatus laticeps 
4. Cheeks and metathorax more or less red; female with a 
conical protuberance on the median lobe of clypeus; meta- 
tMorax “without yellow: Markings: 0.2.00. 566s usilestes rubripes 
4, Cheeks black with a yellow dot; metathorax black with a 
large ovate spot on each side and an interrupted “V” 
above; female having median lobe of clypeus flat... .fulvipes 
Eucerceris canaliculatus (Say). ; 
1823. Philanthus canaliculatus Say, Western Quarterly Reporter, ii, p. 
80. 
1859. Philanthus canaliculatus Say, Leconte edition, i, p. 111. 
1865. Eucerceris canaliculatus Cresson, Proceedings of the Entomo- 
logical Society of Piviiadelphia, v, p. 112. 
This species is represented by a single female specimen taken 
at Lincoln. It is easily recognized by the yellow ground color 
and the two protuberances on the clypeus of the female. 
Eucerceris superbus Cresson. 
1865. Eucerceris superbus Cresson, Proceedings of the Entomological 
Society of Philadelphia, v, p. 108. 
371 
