Premicrodispus Cross, 1965
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publication ID |
https://doi.org/ 10.1080/00222933.2014.953225 |
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DOI |
https://doi.org/10.5281/zenodo.4324303 |
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persistent identifier |
https://treatment.plazi.org/id/03C387EC-FFF5-FFE5-8595-FC88F4EAFAE5 |
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treatment provided by |
Carolina |
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scientific name |
Premicrodispus Cross, 1965 |
| status |
sp. nov. |
Genus Premicrodispus Cross, 1965
Premicrodispus (Premicrodispus) paramaevi Hosseininaveh and Hajiqanbar sp. nov.
( Figures 1–5 View Figure 1 View Figure 2 View Figure 3 View Figure 4 View Figure 5 )
Description
Female. Length of idiosoma 181 (178–184), width 95 (91–97).
Gnathosoma ( Figure 3A,B View Figure 3 ). Gnathosomal capsule about twice as long as its width, dorsally with two pairs of cheliceral setae ch 1 7 (7–8) and ch 2 9 (8–10); ventrally with one pair of subcapitular setae su 7 (7–9); palps short, terminated to small tibial claw, and compressed to gnathosomal capsule, with two pairs of setae, dFe 5 (4–5) and dGe 4 (3–4); cheliceral stylets indiscernible; pharyngeal system ( Figure 3C View Figure 3 ) with three pumps, pumps 1 and 3 reduced, pump 2 large and striated.
Idiosomal dorsum ( Figure 1 View Figure 1 ). Prodorsal shield (PrS) with elongate stigmata and distinct tracheal system; all dorsal setae smooth and pointed; prodorsal shield with one pair of capitate trichobothria and one pair of setae sc 2 19 (16–19); all tergites smooth, tergite C with two pairs of setae c 1 22 (19–22) and c 2 24 (20–24); tergite D with one pair of setae d 29 (25–29) and one pair of rounded cupuli ia; tergite EF with two pairs of setae e 21 (18–21) and f 25 (22–26), setae f longer than setae e; tergite H with two pairs of setae h 1 21 (18–21), h 2 20 (16–20) and one pair of rounded cupuli ih; Distances between dorsal idiosomal setae: sc 2 – sc 2 22 (22–23), c 1 – c 1 31 (27–31), c 2 – c 2 52 (52–58), d–d 13 (13–15), e–e 55 (48–55), e–f 13 (12–14), f–f 23 (23–26), h 1 – h 1 13 (13–14), h 1 – h 2 18 (13–18), h 2 – h 2 47 (40–47).
Idiosomal venter ( Figure 2 View Figure 2 ). Ventral plates smooth; all ventral setae smooth and pointed; apodemes 1 and 2 reaching to presternal apodeme (appr), sejugal apodeme (apsej) joined with appr, apodemes 3 extending beyond setae 3 a and apodemes 4 reaching to setae 3 b, apodeme 5 short; anterior border of poststernal plate concave and posterior border of poststernal plate tripartite; coxal field I with two pairs of setae 1 a 14 (13–14) and 1 b 14 (13–14); coxal field II with two pairs of setae 2 a 19 (16– 19) and 2 b 17 (14–17); coxal field III with three pairs of setae 3 a 14 (12–14), 3 b 14 (13–14) and 3 c 13 (10–13), setae 3 b, 3 a and 3 c subequal; coxal field IV with three pairs of setae 4 a 11 (10–11), 4 b 18 (16–18) and 4 c 14 (12–14); pseudoanal segment PS with two pairs of setae ps 1 12 (11–12) and ps 3 11 (10–11).
Legs. All legs five-segmented except leg І (four-segmented).
Leg I ( Figure 4A View Figure 4 ). Setal formula: Tr1-Fe3-Ge4-TiTa15(4) (number of solenidia in parentheses). Tibiotarsus with solenidion ω 1 8 (7–8), ω 2 4 (4–5), φ 1 6 (6–6) and φ 2 3 (3–3), solenidia ω 1, φ 1 and φ 2 finger-shaped and striated, ω 1 longer than φ 1 and φ 2, solenidion ω 2 uniformly thin; with five eupathidial setae (p ″, ft ′, ft ″, tc ′, tc ″), setae tc ′ longer than tc ″, setae pv ′ longer than pv ″; setae d longer than k, setae v ″ longer than v ′, setae l ′ longer than l ″; genu with setae l ′ longer than other setae of the segment, setae v ′ and v ″ subequal; femur with setae l ′ and v ″ subequal and both shorter than d; trochanter with seta v ′.
Leg II ( Figure 4B View Figure 4 ). Setal formula: Tr1-Fe3-Ge3-Ti4(1)-Ta6(1). Tarsus with solenidion ω 6 (6–7) finger-shaped, setae pv ″, pv ′ and pl ″ subequal, setae u ′ shortest on this segment; tibia with a finger-shaped solenidion φ 4 (3–4), setae v ′ longer than v ″, setae v ″ longer than d and l ′; genu with three setae, v ′ longer than l ′ and setae l ′ longer than l ″; femur with seta d longer than v ″ and setae v ″ longer than l ′; trochanter with seta v ′.
Leg III ( Figure 5A View Figure 5 ). Setal formula: Tr1-Fe2-Ge2-Ti4(1)-Ta6. Tarsus with setae pl ″, pv ′, pv ″, tc ″ and tc ′ subequal, setae pv ″ weakly barbed, setae u ′ shortest on this segment; tibia with solenidion φ 2 (2–3) and setae d, l ′ and v ″ shorter than v ′; genu with seta l ′ weakly barbed and shorter than v ′; femur with setae d longer than v ′; trochanter with seta v ′.
Leg IV ( Figure 5B View Figure 5 ). Setal formula: Tr1-Fe2-Ge1-Ti4(1)-Ta6. Tarsus with seta tc ′ longer than tc ″ and weakly barbed, setae pv ′ longer than pv ″, setae u ′ as long as pv ″, setae pl ″ shortest on the leg; tibia with small solenidion φ 2 (1–2), setae v ″, v ′ and l ′ subequal and almost two times shorter than d, setae d and v ′ weakly barbed; genu with seta v ′ as long as femoral seta v ′; femur with setae d about two times longer than v ′; trochanter with seta v ′.
Male and larva unknown.
Differential diagnosis
The new species is distinguished from congeners by having two pairs of cheliceral setae, rounded cupuli and reduced pump 3 of pharyngeal system. On the other hand, due to presence of setae 4 a, absence of setae ps 2 and subequal setae ps 1 and ps 3, the new species is similar to Premicrodispus parasilvestris ( Rack, 1974) but differs from it by setae d distinctly longer than distance between their bases (setae d distinctly shorter than distance between their bases in P. parasilvestris ). The new species is similar to Premicrodispus dzumaevi ( Sevastianov and Chydyrov, 1991) because of setae d distinctly longer than distance between their bases but differs from it by subequal setae ps 1 and ps 3 (setae ps 1 distinctly longer than ps 3 in P. dzumaevi ). The new species is also similar to Premicrodispus lambi ( Krczal, 1964) but differs from it by setae sc 2 shorter than distance between their bases (setae sc 2 longer than distance between their bases in P. lambi ), by setae d longer than distance between their bases (setae d shorter than distance between their bases in P. lambi ), by setae f subequal to distance between their bases (setae f as half as distance between their bases in P. lambi ), by setae h 1 longer than distance between their bases (setae h 1 shorter than distance between their bases in P. lambi ) and by shorter setae in coxal fields I–IV (longer setae in coxal fields I-IV in P. lambi ).
Type material GoogleMaps
Three females found in a vial containing the beetle Lucanus ibericus (Col.: Lucanidae ) in 75% ethanol. The host beetle was collected in Naharkhoran forest, Golestan province, northern Iran, 36.46° N, 54.27° E, altitude 450 m., coll. V. Rahiminejad, 27 July 2010.
Etymology
The name of the new species ‘ Paramaevi ’ is derived from combination of two species names parasilvestris and dzumaevi , two species that are most similar to the new species.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.