Dendrolaelaspis lobatus (Shcherbak and Chelebiev)

łoharchi, Omid, Döker, İsmail, Yalçın, Kemal & Kazak, Cengiz, 2022, New records of soil-inhabiting mesostigmatic mites (Acari: Mesostigmata) in Turkey, Acarological Studies 4 (2), pp. 70-78 : 74

Dendrolaelaspis lobatus (Shcherbak and Chelebiev)

( Figure 4 )

Dendrolaelaps (Dendrolaelaspis) lobatus Shcherbak and Chelebiev, 1977: 471 .

Dendrolaelaspis lobatus — Shcherbak, 1980: 180; Karg and Schorlemmer,

2009: 69.

Dendrolaelaps (Dendrolaelaspis) lobatus — Hirschmann and Wisniewski, 1982a: 144.

Specimen examined. One female; 36°19'29.4"N, 34°03'16.0"E, Arkum , Silifke, Mersin, Turkey; 23 February 2015; coll. K. YalÇın; soil- litter in commercial strawberry field .

Remarks. Lindquist (1975) erected Dendrolaelaspis as a subgenus of Dendrolaelaps Halbert sensu lato and designated Digamasellus angulosus Willmann as its type species. Shcherbak (1980) raised most of the groups considered as subgenera of Dendrolaelaps sensu lato including Dendrolaelaspis , to the generic level and listing them in subfamily Dendrolaelapinae Hirschmann. The genus comprises about 19 nominal species that are recorded worldwide ( Castilho, 2012). Dendrolaelaspis lobatus was described from Kazakhstan ( Shcherbak and Chelebiev, 1977) where it was found in compost. Morphological characters of our specimen agree very well with description given by Shcherbak and Chelebiev (1977), also with supplementary information presented by Shcherbak (1980) for this species. The species has been recorded in Europe and Asia and is now recorded from Turkey for the first time from the soil-litter. Dendrolaelaspis lobatus is easily recognized by the shape and length of opisthonotal setae which are almost spatulate (club-shaped), except setae J1 and Z1 needle-like, Z4 scimitar-like, J4 spine-like, and J5 rod-shaped ( Fig. 4A ), anterior margin of the sternal shield hardly conspicuous ( Fig. 4B ), ventrianal shield bearing five pairs of smooth preanal setae (Jv1–3, Zv2–2) ( Fig. 4B ), post-anal seta club-shaped ( Fig. 4B ), hypostomal groove with five transverse rows of denticles, each row with 18–30 small denticles, posterior row extending outward from hypostomal groove ( Fig. 4C ); epistome triramous, central prong shorter than lateral prongs, each of these with single barb along their inner margins ( Fig. 4D ), fixed digit of chelicera with an offset distal tooth (gabelzhan), followed by five variously sized teeth, movable digit of chelicera with four well-spaced teeth in addition to apical hook ( Fig. 4E ).

Figures

Figure 4. DIC micrographs of Dendrolaelaspis lobatus (Shcherbak and Chelebiev), adult female: A. Idiosoma in dorsal view; B. Idiosoma in ventral view; C. Subcapitulum; D. Epistome; E. Chelicera.