Eriophyoid Mites (Acariformes: Eriophyoidea) Collected from Phyllostachys spp. in Hungary

Aceria bambusae ChannaBasavanna, 1966 is reported from Hungary for the first time. The species was collected from the leaf sheaths of the introduced bamboo species, Phyllostachys rubromarginata McClure and Phyllostachys tianmuensis Z.P. Wang et N.X. Ma (both Poaceae) in Hungary. Morphological differences distinguishing this species from other bambusoid inhabiting congeners are discussed. In addition, new date-lo-cality-host records for 3 eriophyoid species collected from 7 bamboo species are given.

Herein we report on our discovery of a species of the genus Aceria found on Phyl lostachys rubromarginata McClure and Phyllostachys tianmuensis Z.P. Wang et N.X. Ma (both Poaceae), which are introduced species from China. We provide evidence that this species is different from Aceria gilloglii Keifer, 1963, Aceria havenensis (Keifer, 1979) (sensu Keifer) and Aceria niitakayamensis Wang et Huang, 2011 in consideration of the Asian origin of the hosts.

Materials and Methods
The The eriophyoid mites were cleared in lactic acid then mounted in Keifer's F-medium with sorbitol and Hoyer's medium on microscope slides (Keifer, 1975). Specimens were examined with the aid of a research phase contrast compound microscope (Nikon Eclipse E600) equipped with a drawing tube (Nikon Y-IDT). A Zeiss Axio Imager A2 microscope was used for making digital microscopic images on slide mounted specimens.
The generic classification was made according to Amrine et al. (2003) together with further updating. The terminology and setal notation used in the morphological descriptions follow Lindquist (1996). The number of measured specimens (n) is given in parentheses following the body length. All measurements of mites were made according to Amrine and Manson (1996) and are given in micrometers. Measurements and means are rounded off to the nearest integer. All measurements, unless specified otherwise, are lengths. For females, the mean and the ranges are given. For males and nymphs, data of five specimens are given.
Relationship to the host -This mite was found in high number in the leaf sheaths of the host and caused no discernible symptoms.
Material examined -The re-described and illustrated female among 5 females, 4 males and 7 nymphs, and one female of Abacarus korosicsomai Ripka on one slide, 2 July 2019, slide # 1465a, coll. Géza Ripka. Other materials: slide # 1465b was prepared from this material containing 8 females, 2 males and 2 nymphs from the leaf sheaths of the host; slide # 1469a from Phyllostachys tianmuensis one female, and 5 females and 3 males of Rhyncaphytoptus longipalpis, and one female of a Cecidophyes species, and one female of Adventacarus turulae Ripka, 2 July 2019, coll. Géza Ripka. Slides are in the corresponding author's collection and deposited in the National Food Chain Safety Office, Directorate of Plant Protection, Soil Conservation and Agri-environment, Budapest, Hungary.
The re-described species shows similarities with the four nominal Aceria species living on bamboo hosts. The re-described species is close to Aceria gilloglii because it shares numerous features, particularly body shape, the number of dorsal and ventral annuli, the ornamentation of prodorsal shield and coxi-genital region, length of several setae, but can be differentiated by having single row of microtubercles on annuli, whereas A. gil loglii has double rows of microtubercles on each annulus laterally and dorsally. There are some morphometric differences between the examined Hungarian Aceria bambusae specimens and both the holotype of Aceria bambusae and the re-described specimens of A. bambusae given by Elhalawany (2015). We especially draw attention to the length of setae sc: which is 18-20 in holotype of A. bambusae, whereas 30-39 in specimens of A. bambusae collected in Hungary. There are two other marked differences: in the number of ridges on genital coverflap, which is 4-6 in holotype of A. bambusae, whereas 7-8 in the examined A. bambusae specimens; and the number of empodial rays, which is 7 in A. bambusae, versus 5 in the Hungarian A. bambusae specimens (Table 1). Nevertheless the examined specimens belong to A. bambusae because the vast majority of the morphometric data for female matches the original description by ChannaBasavanna.
Further eriophyoid species were collected from different bamboo species during this survey: Abacarus korosicsomai