The gall's range is computed from the range of all hosts that the gall occurs on. In some cases we have evidence that the gall does not occur across the full range of the hosts and we will remove these places from the range. For undescribed species we will show the expected range based on hosts plus where the galls have been observed.
Our ID Notes may contain important tips necessary for distinguishing this gall
from similar galls and/or important information about the taxonomic status of
this gall inducer.
Created Feb 4, 2026 1:47 PM UTC
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Last updated Feb 4, 2026 1:47 PM UTC
Revision of the Nematina of North America, a Sub-family of Leaf-feeding Hymenoptera of the Family Tenthredinidae
Charles Lester Marlatt
(1896)
Pontania pyriformis new species
Gall. —Galls occurring on leaves of Salix californica(?) [eastwoodiae]. Collected by Albert Koebele, Donner, Placer County, Cal., September 5, 1885. Galls occur on the underside of the leaf, attached to or near the midrib, usually singly, but sometimes two separately on the leaf, or more frequently partly coalescing, in which case one is usually abortive. They are pear shaped, attached rather broadly (1/4 to 1/2 greatest diameter) at the larger end, and rather acutely pointed, sometimes slightly curved at tip, or more rarely bifurcate. They consist of a mere shell, containing with the larva very little frass, as though the larva had subsisted more on secretions than on the solid interior of the gall — the gall giving now no indication of ever having been fleshy and solid. The full-grown larva escapes through the base of the gall at its point of attachment, emerging, therefore, on the upper side of the leaf. The larva is white, with light-brown head and black eye-spots, 7 to 8 mm. long. Six specimens of Pimpla euurae Ashm. were reared, but no gall-flies.
