View source for Entomological Science (2013) 16, 400-412

{{Publication
|Publication authors=[[Junichi Yukawa]], Kohjin Nakagawa, Tetsumi Saigou, Takahiro Awa, Takeshi Fukuda and Masahiko Higashi
|Author Page=Junichi Yukawa
|Publication date=2013
|dc:title=Adult behavior of an ambrosia gall midge ''[[Illiciomyia yukawai]]'' (Diptera: Cecidomyiidae) and synchronization between its emergence and host plant phenology
|Publication journal=Entomological Science
|prism:volume=16 (4)
|prism:startingPage=400
|Last page=412
|DOI=10.1111/ens.12024
|Publication abstract=The adult behavior of an ambrosia gall midge ''Illiciomyia yukawai'' (Diptera: Cecidomyiidae) that induces leaf galls on ''Illicium anisatum'' (Illiciaceae) was studied at the population level from 1977 to 1995 in Kagoshima, Japan. Most males emerged between 0:00 and 08:00 h and females between 05:00 and 11:00 h. Males swarmed around the host trees between 05:00 and 11:00 h. Mating occurred on the host leaves mainly between 06:00 and 08:00 h. Females then left the host trees for somewhere else, possibly to collect symbiont fungal conidia. From 08:00 to 16:00 h, females were observed ovipositing into the host shoots. The low development threshold temperature for overwintered larvae was 14°C, while the thermal constant for emergence differed with individuals. Thermal totals above 14°C up to the 50% emergence date varied yearly from 33.1 to 68.7 degree-days. The 50% emergence date varied from 9 to 18 May. The thermal totals significantly correlated with the 50% emergence date but did not correlate with the date when 50% of shoots became suitable for oviposition. Thus, the host-plant responded to thermal effects differently from the gall midge. ''Illiciomyia yukawai'' has been synchronizing well with the host-plant phenology but will suffer from asynchrony when global warming becomes more conspicuous.
|AbstractCC=Yes
|Research topic=general biology - morphology - evolution
|Is book=No
}}
{{Pest record
|Pest=Illiciomyia yukawai
|Crop=Illicium (genus)
|Country=Japan
|Quarantined=No
}}