Crossdania tubulosa, Khaustov & Whitaker, 2019
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publication ID |
https://doi.org/ 10.24349/acarologia/20194335 |
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publication LSID |
lsid:zoobank.org:pub:4CC238AE-261B-432A-901D-490635B60695 |
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persistent identifier |
https://treatment.plazi.org/id/038687DF-FF85-3176-D2D4-8608702B3AD4 |
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treatment provided by |
Carolina |
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scientific name |
Crossdania tubulosa |
| status |
sp. nov. |
Crossdania tubulosa sp. nov.
Zoobank: B5FA2A5E-BF1B-488D-B960-B2614985FD72 ( Figs 1–5 View Figure 1 View Figure 2 View Figure 3 View Figure 4 View Figure 5 )
Description
Female ( Figs 1–5 View Figure 1 View Figure 2 View Figure 3 View Figure 4 View Figure 5 ) — With the character states of the genus as described above. Length of idiosoma 350 (265–355), width 180 (155–190). Gnathosoma ( Fig. 2 View Figure 2 ). Length of gnathosoma
33 (31–35), width 30 (29–31). Dorsal median apodeme well developed, thick. Cheliceral setae smooth and pointed. Setae cha 15 (15–16), chb 18 (18–19). Setae dFe slightly shorter
than dGe, both smooth and pointed. Subcapitular setae m (not visible in holotype due to
folded gnathosoma) (14–19) smooth and pointed. All pharyngeal pumps distinctly transversely striated. Pharyngeal pump 1 (php1) small, bow-shaped subequal to oval pharyngeal pump 3 (php3); pharyngeal pump 2 (php2) long, subrectangular, more than five times longer than php3. Idiosomal dorsum ( Figs 1A View Figure 1 , 5A–C View Figure 5 ). All dorsal shields with numerous small round dimples ( Figs 5A, B View Figure 5 ). All dorsal setae pointed and distinctly barbed. Setae v 2 thick and flat, other dorsal setae not modified. Trichobothria with long stem, clavate, sparsely barbed, with rounded apex. Cupules ia on tergite D situated anterolaterally to bases of setae d; cupules ih on tergite
H situated anteriorly to bases of setae h 2. Posterior part of tergite H slightly bent ventrally. Lengths of dorsal setae: v 2 28 (22–26), sc 2 81 (71–82), c 1 80 (72–82), c 2 81 (72–85), d 81 (72–80), e 51 (45–53), f 89 (82–91), h 1 62 (59–68), h 2 41 (38–43). Distances between setae:
v 2 –v 2 39 (37–41), sc 2 –sc 2 43 (39–41), c 1 – c 1 67 (59–72), c 1 – c 2 34 (26–33), d–d 39 (31–39), e–f
17 (15–19), f –f 64 (55–66), h 1 – h 1 32 (31–34), h 1 – h 2 22(20–24).
Idiosomal venter ( Figs 1B View Figure 1 , 5D, E View Figure 5 ). Ventral plates with numerous small dimples ( Figs 5D, View Figure 5
E), dimples on anterior half of coxal fields II slightly larger than others ( Fig. 5D View Figure 5 ). All ventral setae pointed. Setae ps 2 smooth, other ventral setae distinctly barbed. Posterior margin of aggenital plate weakly concave. Bases of setae 4 a connected with posterior end of appo by distinct ridges ( Fig. 5E View Figure 5 ) forming inverted v-shaped structure. Lengths of ventral setae a 36: 1 (35–55), 1 b 37 (32–38), 2 a 65 (58–71), 2 b 64 (61–68), 3 a 51 (43–54), 3 b 61 (51–63), 3 c 40 (35–41), 4 a 76 (68–86), 4 b 84 (81–96), 4 c 62 (60–67), ps 1 20 (17–24), ps 2 8 (7–9), ps 3 18 (14–19).
Legs ( Figs 3 View Figure 3 , 4 View Figure 4 , 5F View Figure 5 ). Leg I ( Fig. 3A View Figure 3 ). Lengths of solenidia ω 1 10 (10–11), ω 2 8 (7–9), φ 1
9 (9–10), φ 2 7 (6–7); all solenidia finger-shaped. Seta l’ of femur blunt-ended; other leg setae (except eupathidia) pointed. All leg setae (except eupathidia) barbed. Leg II ( Figs 3B View Figure 3 , 5F View Figure 5 ). Solenidia ω 11 (11–12) and φ 7 (7–8) finger-shaped. All leg setae pointed and barbed. Leg III ( Fig. 4A View Figure 4 ). Solenidion φ 5 (5–6) almost oval. All leg setae pointed and barbed. Leg IV ( Fig. 4B View Figure 4 ). Solenidion φ 4 (4) weakly clavate. All leg setae distinctly barbed. Seta v” of tibia weakly blunt-ended; other leg setae pointed.
Male and larva unknown.
Type material — Holotype (female) and 17 paratypes (females): USA, Oregon, Malheur County, 10.5 km to SE from White-horse ranch, on Northern grasshopper mouse, Onychomys leucogaster , 29 August 1976 (J. Whitaker). Other paratypes: 3 females, USA, Oregon, Malheur County, Jordan crater RNA, on Great Basin pocket mouse, Perognathus parvus , 29 August 1976 (J. Whitaker).
Type deposition — The holotype and 4 paratypes are deposited in the United States National Museum , Washington, USA ; other paratypes are deposited in the mite collection of the Tyumen State University Museum of Zoology , Tyumen, Russia .
Etymology — The name of the new species is derived from Latin tubulosa meaning tubular, and refers to the presence of unusual tube-like structures under tergite H.
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.