Microberotha can be distinguished from other berothids by the combination of an unbranched "Rs" vein and lack of an outer gradate series of crossveins in the forewings. With a forewing length of only ,
M. macculloughi is one of the smallest known members of Berothidae to have been described. The smallest living species,
Manselliberotha neuropterologorum, has a minimum forewing length of , while some species from the
New Jersey ambers are smaller at a minimum of . The holotype is preserved in a specimen of amber which shows distinct flow patterning indicating it started as a "stalactite" or similar formation on the tree. The positioning of the insect relative to the flow pattern indicates it was most likely trapped with its back stuck to the inner flow with its left side facing down. A later, thicker flow covered the insect, twisting the left hindwing and disarticulating both the hindlegs. == References ==