Synonyms and other taxonomic changes
=Ibalia scalpellator Westwood, 1837 (described from GA)
=Ibalia maculipennis Haldeman, 1846 (described from PA)
=Ibalia fasciipennis Kieffer, 1909 (described from PA)
Explanation of Names
Ibalia (Tremibalia) anceps Say 1824
Identification
predominantly yellow with black markings on head, thorax, and abdomen; first hind tarsal segment longer than remaining segments combined; 2nd hind tarsal segment has long apical process extending to tip of 4th tarsal segment; abdomen compressed laterally (almost knife-like) and longer than head and thorax combined; antenna 13-segmented in female, 15-segmented in male; forewing mottled with brown spots (3 morphs of I. anceps are recognized, each morph differing in wing color pattern)
Range
e. US & se. Canada (NS-ON-WI-CO to FL-TX)
(2)Habitat
adults may be seen ovipositing on hickory trees, inside which larvae of Tremex horntails are present
See Also
The only 2 other eastern species: I. leucospoides, has a black head, thorax, and legs, and an unmarked dark red abdomen; I. rufipes (northeastern, Canada) is similar in coloration to I. leucospoides except usually has reddish hind femora.
