Chetogena scutellaris(Diptera: Tachinidae), an Endoparasite of LarvalStrymon acis bartrami(Lycaenidae)

Identity of the previously unrecognized Chetogena flaviceps and its synonymy with C. scutellaris (Diptera: Tachinidae)

نمونه‌ی تایپ ناشناخته‌ی Chetogena flaviceps (Bigot) مورد مطالعه و هم‌نامی آن با گونه‌یChetogena scutellaris Wulp مورد تایید قرار گرفت. دستگاه جنسی نمونه‌ی تایپ ترسیم گردیده و توصیف مجدد گونه‌یC. scutellaris و صفات تشخیص حشره نر از سایر گونه‌ها آورده شده است.

Laboratory Biology of Chetogena Scutellaris (diptera: Tachinidae), a Parasitoid of Noctuidae, Reared on Fall Armyworm and Cabbage Looper

The tachinid parasitoid Chetogena scutellaris (Wulp) was reared from southern armyworm, Spodoptera eridania (Cramer), a new host record. When reared in cabbage looper, Trichoplusia ni (Hübner), (a new host) and in fall armyworm, Spodoptera frugiperda (J. E. Smith), in the laboratory, C. scutellaris developed successfully ca. 30% of the time. Success of parasitism depended on the numbers of eggs...

identity of the previously unrecognized chetogena flaviceps and its synonymy with c. scutellaris (diptera: tachinidae)

the single type specimen of the unrecognized species, chetogena flaviceps (bigot), was examined and found to be a subjective senior synonym of the well-known new world species of chetogena scutellaris wulp. the genitalia of the holotype was dissected and illustrated in detail. a redescription of c. scutellaris, including the male genitalic characters is provided.

ACIS Absolute QE the

Composition of the Chandra ACIS contaminant

The Advanced CCD Imaging Spectrometer (ACIS) on the Chandra X-ray Observatory is suffering a gradual loss of low energy sensitivity due to a buildup of a contaminant. High resolution spectra of bright astrophysical sources using the Chandra Low Energy Transmission Grating Spectrometer (LETGS) have been analyzed in order to determine the nature of the contaminant by measuring the absorption edge...