Editing Sceliphron caementarium (section)

==Description==
[[File:Sphecidae - Sceliphron caementarium.JPG|thumb|250px|left|Female of ''Sceliphron caementarium'' feeding on nectar]]
''Sceliphron caementarium'' can reach a length of {{convert|24|-|28|mm|in|frac=32|abbr=on}}. Their [[Petiole (insect anatomy)|petiole]] is generally black and is about half the length of the entire abdomen, however the population in the [[Southwestern United States|desert southwest]] often has a yellow petiole.<ref name="Van der Vecht-Breugel01968"/> The thorax shows various yellow markings, while the abdomen is normally black, with yellow [[propodeum]] (typical of females). The eyes are black, the antennae are black, and the legs are yellow with black [[trochanter (arthropod leg)|trochanter]]s and femurs. Within the United States, it is the only species with yellow-marked legs. The wings are a tawny color.<ref name=bugguide>[http://bugguide.net/node/view/6610 Bugguide]</ref><ref name=naturesearch>[http://www.fnanaturesearch.org/index.php?option=com_naturesearch&task=view&id=296 Nature Search]</ref>