Desmometopa inaurata has been reared from various decaying material like poultry and horse manure, decaying plant material as well as decaying snails. It has also been reared from locust eggs and a Drosophila pupa.

Desmometopa inaurata can be distinguished from all other known Desmometopa species by the yellowish to golden tint of the mesonotal microtomentum.

Pleuron entirely dull gray microtomentose; mesothorax with the bright gray microtomentum with slightly yellowish to decidedly golden tint.

Male, female. Almost entirely black, yellowish only on antenna and palpus (more so in male than in female), and knob of halter; antenna usually all black in female, occasionally orange-yellow to base of 3rd antennal segment, in male base of 3rd segment largely orange-yellow; palpus chiefly orange-yellow in both sexes, infuscated apicoventrally, more infuscated in female than in male.

Frons with M-shaped frontal vitta subshining velvet black, the fronto-orbital and interfrontal plates, and large frontal triangle gray microtomentose and sharply distinct; upper orbital plate much broader than lower; apex of frontal triangle nearly midway of frons, at level of foremost upper orbital setae; cheek 1/2 to nearly 3/5 breadth of 3rd antennal segment and 1/8-1/5 the height of an eye, chiefly gray with linear and sometimes scarcely visible subocular crescent; vibrissal angle not produced, the angle about 80º to 90º, and mesad of it the facial plate flat and dull gray, 3rd antennal segment small in both sexes; palpus clavate in both sexes.

Thorax entirely dull gray microtomentose, including entire pleuron; mesonotum bright gray microtomentose, usually with distinctive yellowish to golden tint. Fore coxa and all tarsi infuscated, the fore coxa not elongate. Length: 2.5 mm. (Sabrosky 1983)

Cosmotropical