EPICOCCUS COCKERELL AND ITS TYPE-SPECIES, EPICOCCUS ACACIAE (MASKELL), REDESCRIBED (HOMOPTERA: COCCOIDEA: PSEUDOCOCCIDAE)

گزارش یک گونه شپشک آرد الود (Dysmicoccus brevips ( Cockerell ) ( Coccoidea: Pseudococcidae

Identification of Mealybug- (Homoptera: Pseudococcidae) Resistant Turf-Type Buffalograss Germplasm

Two species of mealybugs, Tridiscus sporoboli (Cockerell) and Trionymus sp., have emerged as potentially serious pests of turf-type buffalograss, Buchloe dactyloides (Nuttall) Engelmann. Sixty-two buffalograss selections were screened for resistance to these mealybugs in 4 greenhouse trials. Using a 1-6 rating scale (1 = no signs of mealybugs, 6 = >75% of tillers infested), 'Prairie' and '609' ...

Polystomophora orientalis (Hemiptera: Coccoidea: Pseudococcidae), a new genus and species record for Iran

شپشک آرد‌آلود Polystomophora orientalis Matesova در تاریخ 15/3/1386 از منطقه‌‌ی بایگ تربت حیدریه در استان خراسان رضوی از روی ریشه‌ی خارشتر، Alhagi pseudoalhagi، جمع‌آوری شد. جنس و گونه‌ی این شپشک برای اولین بار از ایران گزارش می‌شود. جنسPolystomophora Borchsenius تاکنون از منطقه‌ی Palaearctic گزارش شده است.

Evidence for Gene Flow between Two Sympatric Mealybug Species (Insecta; Coccoidea; Pseudococcidae)

Occurrence of inter-species hybrids in natural populations might be evidence of gene flow between species. In the present study we found evidence of gene flow between two sympatric, genetically related scale insect species--the citrus mealybug Planococcus citri (Risso) and the vine mealybug Planococcus ficus (Signoret). These species can be distinguished by morphological, behavioral, and molecu...

A new species of Aulacaspis Cockerell, 1893 from China with a key to Chinese species (Hemiptera, Coccoidea, Diaspididae)

A new species of armored scale insect, Aulacaspis zunyiensissp. n. is described and illustrated from collections on cycads in China. A key to the Aulacaspis species known from China is provided.