Thecodiplosis (genus)

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Thecodiplosis japonensis (click on image to enlarge it)
Author: D.K. Park
Source: Naver

Thecodiplosis Kieffer, 1895 - (pine gall midges)

This small genus of gall midges includes 2 pest species that infest pine trees in Europe (Thecodiplosis brachyntera) and eastern Asia (Thecodiplosis japonensis). In spring, the adult midges lay eggs on the developing needles and the emerging larvae feed at the base of the needles, forming galls. The infested needles do not develop and eventually wilt. Growth of the attacked pine trees is retarded and outbreaks can result in defoliation and in case of T. japonensis in tree mortality.


Currently, the following species have been entered into the system: