Lateral ocelli separated by 1.8X their widest diameter from each other and 1.7X their widest diameter from
eye margin. Antennae with 27-28 flagellomeres.
pronotum impunctate, rugose medially and along posterior
margin. mesoscutum (
1,
2) densely punctate over entire suface. T1 about 1.6-1.8X as long as broad. face (
1,
2,
3) yellow, frons (
1,
2) medially and
occiput black.
mesosoma black and yellow (Fig. 2). Metasomal tergites mostly black with apical margins yellow.
hind femur and
tibia orange, tarsomeres and
pretarsus black.
fore wing entirely hyaline.
Physotarsus melotarsus is one of several species with a black and yellow
mesosoma, a distinctly punctate mesopleuron (
1,
2), and a completely hyaline
wing. It differs from all but
P. foveatus Zhaurova and
P. tonicus Zhaurova in having the entire mesoscutum (
1,
2) deeply punctate. The face (
1,
2,
3) is completely yellow in
P. melotarsus and partially to completely black medially in
P. foveatus and
P. tonicus.
