Kampimodromus corylosus Kolodochka 2003
Creators: name: Kolodochka, L. A.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Phytoseiidae
Kampimodromus
Kampimodromus corylosus

description: Kampimodromus corylosus Kolodochka, 2003 (fig. 4)   
Kolodochka, 2003: 51; Cargnus et al., 2012: 583, 2014: 207; Döker et al., 2017: 361.  
 Material. Type. Holotype} (marked #1): #1541; Ukraine, Kyiv, Teremki, oak forest underwood, Corylus avellana, 15.07.1975 (Kolodochka) (SIZK); paratypes 34}, 7{, ibid. (#1541b, #1541r) together with the holotype (Kolodochka) (SIZK).   
 Non-type. 206 specimens (176}, 30 {): Crimea, Donetsk, Zhytomyr, Transcarpathian, Kyiv, Mykolaiv, Sumy, Ternopil, Kharkiv, Chernihiv Regions.   
 R e d e s c r i p t i o n. F e m a l e. Dorsal shield (fig. 4, 1) weakly sclerotised, bearing 5 pairs of solenostomes (it, iv, il, is, ic; id and isc absent). Setae ADl, AM 1, AL 1, AL 3, AL 4, PL 1, PM 3, PM 4, AS, PS elongated and serrated, the rest short and smooth (some may have single serrations). Setae AD 3 as long as distance between their thecae. Setae PD 4, PL 3 and macrochaetes IV smooth or with 1–2 serrations. Seta AM 1 extending beyond theca AL 1. The length of AL 1 and the distance to the theca of AL 2 is equal. Narrow and smooth ventrianal shield elongate with lateral emarginations (fig. 4, 2); anal pores distinct, rounded, shifted towards each other. Seta PV elongated and serrate. Peritremes reach mid-distance between setae AM 1 and AL 1. Metapodal scutes linear, posterior not less than 2.3 times as long as anterior scute (fig. 4, 3). The peritremal shield is caudally expanded, ending as a coracoid in shape (fig. 4, 4). Df of chelicera with 3 small teeth, Dm without teeth (fig. 4, 5). Funnel of spermatheca saucer-shaped, atrium on poorly noticeable, very short neck, from different angles looking to be sessile (fig. 4, 6). Basitarsus of leg IV with short and sharp macrochaete, smooth or with 1–2 serrations (fig. 4, 7).   
Measurements. Lds 300, Wds 160, Lvas 90, Wvas 48, Lian 15, Ltar 80; setae length: AD 1 22, AD 2, 14; AD 3 14; AD 4 16, PD 2 23, PD 4 7, AM 1 29, AM 2 15, AL 1 25; AL 2 34, AL 4 41, PL 1 43, PL 3 18, PM 1 21, PM 3 39, PM 4 48, AS 35, PS 25; PV 29; MChlV: ta 22.  
 Male. Preanal setae 3 pairs (fig. 4, 8); anal pores distinct, rounded, shifted towards each other. Spermatodactyl (fig. 4, 9) L-shaped, branch elongated, thin, curved, with a sharply bent tip. Lds 240.   
 D i a g n o s i s. Kampimodromus corylosus is very similar to K. aberrans, differing by the presence of five rather than four pairs of dorsal solenostomes (solenostome is present), closely spaced anal pores, a different shape of the ventrianal shield, a greater number of teeth on Df, as well as the shape, structure, and larger size spermatodactyl of male. Kampimodromus karadaghensis Kolodochka, from the Crimea, also has 5 pairs of dorsal solenostomes, but its dorsal setae AL 4, PL 1, PM 1 and the setae of the AD and PD rows are distinctly longer than those of K. corylosus, especially PD 2, which almost reach the is solenostome, and the male spermatodactyl has a different proportion of parts (see the diagnosis of K. karadaghensis below).   
 D i s t r i b u t i o n, h a b i t a t, o c c u r r e n c e. Europe: Hungary, Moldova, Croatia, Ukraine. In Ukraine: the Wood-and-Steppe Zone and the bordering parts of the Polissia and the Steppe, the mountainous Crimea, the Carpathians and Transcarpathia. Kampimodromus corylosus is restricted to hazel, occasionally on other species of trees, shrubs, and herbs.   
N o t e. 1. Description, illustrations, and measurements are based on holotype.  
 2. Kampimodromus corylosus shows a strong association with the hazel or bear nut. Rare exceptions do not mask this connection; the range of this species coincides with the range of hazel. In Ukraine, K. aberrans and K. corylosus do not occur together on the same plant, at least according to the author’s materials. Therefore, any information in early publications regarding the findings of K. aberrans on hazelnuts should be attributed to K. corylosus. It is highly probable that the reports of other researchers about the finds of mites of the genus Kampimodromus on hazelnuts can also be assigned to K. corylosus, at least such specimens need re-identification.
description: Published as part of Kolodochka, L. A., 2023, The Predatory Mites (Phytoseiidae, Parasitiformes) In The Fauna Of Ukraine: Genera Paragigagnatus, Carinoseius, Kampimodromus, Eharius, Typhlodromips, And Euseius, pp. 477-506 in Zoodiversity 57 (6) on pages 486-488, DOI: 10.15407/zoo2023.06.477, http://zenodo.org/record/10788561