HYMENOPTERA — SPHECINA. 



95 



Stizus flavus Cam . 

 godmani Cam. 



unicinctus — Stizoides. 

 Stizoides unicinctus (Say.) 



OXYBELID/E. 



Oxybeius impatiens — quadrinotatus. quadrinotatus Say. 



NYSSONID>E 



Astata bella Cr. 



caerulans Cr. 



nevadicus Cr. 

 nubeculus Cr. 



SPHEGID>E. 



This family includes the mud daubers, Sceliphron and Chlorion, which 

 store their nests with spiders, others capture caterpillars, grasshoppers, etc. 

 Ammophila argentifrons-Psammophila Prionyx atratum — Chlorion. 

 Psammophila. 



luctuosa 



sseva — Sphex. 



violaceipennis — Psammophila. 



rightii — Sphex. 

 Cloptera wrightii — Sphex. 

 Chalybion caeruleum — Chlorion cyan 

 eum. 



zimmermani — Chlorion. 

 Chlorion abdominalis (Cr.) 



ashmeadii Fern. 



atratum (Lep.) 



aztecum (Saus.) 



bifoviatum (Tasch.^ 



cyaneum Dahl- 



elegans (Sm.) 



derrifineum (Fox). 



laeviventris (Cr.) 



lucas (Saus.) 



pensylvanicum (Linn.) 



praestans (Kohl.) 



rufiventris (Cr.) 



thomae (Fabr.) 

 Isodonta aztecum — Chlorion. 



elegans — Chlorion. 

 c^almodes abdominalis — Chlorion. 



laeviventris — Chlorion. 



praestans — Chlorion. 



rufiventris — Chlorion. 

 Pelopeus cementarius — Scelifron. 



bifoveatum — Chlorion. 



ferruginium — Chlorion. 



thomae — Chlorion. 

 Proterosphex ashmeadii — Chlorion. 



lucse — Chlorion. 



pensylvanicum — Chlorion. 

 Psammaphila argentifrons (Cr.) 



luctuosa (Sm.) 



pacifica Mel. 



violaceipennis (Lep.) 

 Sceliphron cementarius (Dru.) 

 Sphex abdominalis — Chlorion. 



atratum — Chlorion. 



aztecum — Chlorion. 



bifoviatum — Chlorion. 



caeruleum — Chlorion cyaneum. 



cementarius — Sceliphron. 



cyaneum — Chlorion. 



elegans — Chlorion. 



ferrugineum — Chlorion. 



laeviventris — Chlorion. 



lucae — Chlorion. 



pensylvanicum — Chlorion. 



placidus (Sm.) 



praestans — Chlorion. 



rufiventris — Chlorion. 



sasva (Sm.) 



thomae — Chlorion. 



wrightii (Cr.) 



Ancistroma aurantia Fox. 



dolorosa Fox. 



tenuicornia Sm. 

 Bembidula nigrifrons (Prov) 



parata (Prov.) 



ventralis Say. 

 Larva tenuicornis — Ancistroma. 

 Lyrops pepticus — Tachytes. 



LARRID/E 



Microbembex monodonta (Say). 

 Monodula nigrifrons — Bembidula. 



parata — Bembidula. 



pulchella — Stictia. 



pulla — Stictia. 



tenuicornis — Stictia. 



usitata — Stictia. 

 Stictia nigrifrons — Bembidula. 



