This species was reared from inflated leaf galls that usually occupy the base of the leaf, but which occasionally occupy its entire length (Figure 15E,F). Often only one of the two leaves on the same node is affected (Figure 15E). The galls were locally very common on the two host plants at a particular spot, but absent from other spots at the same site. As would be expected, galls were larger on M. mitratum (2–4 cm) than on the smaller and more delicate M. clivorum (1–2 cm). Each gall contained 10–30 larvae, as attested by the large numbers of empty pupal skins that were stuck in them. The galls are not particularly harder than the soft, uninfested leaves, and most are green but sometimes yellowish. This species was observed and reared only once, in late July, and no additional information is available on its life history.