Testudacarus rollerae O'Neill & Dowling
publication ID |
https://dx.doi.org/10.3897/zookeys.582.7684 |
publication LSID |
lsid:zoobank.org:pub:00296D5B-FDE4-4257-B93F-2D1C2D889200 |
persistent identifier |
https://treatment.plazi.org/id/74EBEF64-B599-45A8-B79E-6A07D1DA05A8 |
taxon LSID |
lsid:zoobank.org:act:74EBEF64-B599-45A8-B79E-6A07D1DA05A8 |
treatment provided by |
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scientific name |
Testudacarus rollerae O'Neill & Dowling |
status |
sp. n. |
Taxon classification Animalia Trombidiformes Torrenticolidae
Testudacarus rollerae O'Neill & Dowling sp. n.
Type series.
Holotype (1♀): California, USA: 1♀ from Nevada County, Tahoe National Forest, Bear River, at Sierra Discovery day use area upstream from bridge (39°18'35.00"N, 120°39'56.00"W), 26 August 2013, by JR Fisher, JRF13-0826-001 (Specimen 146725 - DNA# 2135); Paratypes (2♀, 2♂): California, USA: (allotype) 1♂ (allotype)from Nevada County, Tahoe National Forest, Bear River, at Sierra Discovery day use area upstream from bridge (39°18'35.00"N, 120°39'56.00"W), 26 August 2013, by JR Fisher, JRF13-0826-001 (Specimen 146724 - DNA# 2134); 1♀ from Nevada County, Tahoe National Forest, Bear River, at Sierra Discovery day use area upstream from bridge (39°18'35.00"N, 120°39'56.00"W), 26 August 2013, by JR Fisher, JRF13-0826-001; 1♀ and 1♂ from Calaveras County, Calaveras Big Trees State Park, Big Trees River, (38°16'N, 120°16'W), 12 June 1976, by IM Smith, IMS760099; 1♂ from Mendocino County, Navarro River, Paul M. Dimmick Recreation Area beside Route 128 (39°'10'N, 123°38'W), 29 September 1993, by IM Smith, IMS9300026A.
Type deposition.
Holotype (1♀) and allotype (1♂) deposited at CNC; four paratypes (2♀, 2♂) at ACUA.
Diagnosis.
These mites are smaller and more colorful than other species in the complex and therefore resemble most the Testudacarus minimus -like mites; however, mites of the Testudacarus minimus complex are even smaller and have a smaller (<140 µm, and far less than twice as wide as long), more rounded anterio-medial platelet, while these mites have a larger (>140 µm, and more than or nearly twice as wide as long) more rectangular anterio-medial platelet.
Description.
Female (n=3) with characteristics of genus with following specifications.
Gnathosoma - Subcapitulum [176-188 ventral length; 105-107 dorsal length; 100-103 tall] elliptical ovoid with short rostrum and colorless. Chelicerae [145-152 long] unmodified with lightly curved fangs [28-30 long]. Pedipalp [202-212 long] unmodified. Trochanter [30-31 long; 28-30 wide]. Femur [56-58 long; 40-41 wide]. Genu [43-47 long; 33-35 wide]. Tibia [52-55 long; 20-23 wide]. Tarsus [20-22 long; 9-10 wide].
Dorsum (Fig. 41) - [625-680 long; 483-550 wide] ovoid and mostly colorless. Dorsal plate [526-568 long; 410-475 wide]. Primary sclerotization [431-473 long] light pink to colorless. Dorso-glandularia-4 [192-246 apart] lateral to [45-58] and around muscle scar midline. Platelets colorless. Anterio-medial platelet [153-164 long; 83-93 wide] large trapezoid with nearly straight anterior margin. Anterio-lateral platelets [181-211 long; 88-91 wide]. Lateral platelets as follows: lateral-1 [46-52 long; 38-40 wide]; lateral-2 [132-148 long; 33-39 wide]; lateral-3 [50-69 long; 19-26 wide]; lateral-4 [107-112 long; 22-29 wide]; lateral-5 [61-86 long; 27-32 wide]; lateral-6 [112-128 long; 25-34 wide]; lateral-7 [31-77 long; 23-33 wide].
Venter (Fig. 41) - [786-884 long; 548-644 wide] round to ovoid and colorless. Primary sclerotization [624-709 long]. Gnathosomal bay [81-96 dorsal length; 154-164 ventral length; 56-60 wide]. Coxal field [478-532 long; 335-394 wide]. Coxa-I [261-290 long; 106-126 midlength]. Coxa-II + III [122-137 distance to top of coxa-II; 198-224 distance to top of coxa-III; 363-395 distance to bottom of coxa-III; 237-257 total length]. Coxa-IV [346-385 distance to top; 132-148 total length]. Genital field [347-374 distance to top; 500-539 distance to bottom; 153-165 total length; 130-139 width; 193-210 distance from gnathosomal bay; 79-87 distance from coxa-I; 199-231 distance to excretory pore; 286-345 distance to caudad]. Eggs [165-178 long; 1 egg]. Distance to excretory pore [699-770].
Legs - colorless. Total leg and podomere lengths as follows: Leg-I [503-542 total; trochanter 65-68; basifemur 88-93; telofemur 70-81; genu 93-103; tibia 96-102; tarsus 89-97]. Leg-II [510-577 total; trochanter 52-74; basifemur 82-94; telofemur 66-78; genu 94-102; tibia 103-118; tarsus 106-112]. Leg-III [610-657 total; trochanter 64-71; basifemur 92-99; telofemur 73-82; genu 110-122; tibia 127-146; tarsus 137-141]. Leg-IV [843-914 total; trochanter 96-101; basifemur 116-125; telofemur 117-133; genu 166-185; tibia 181-195; tarsus 168-178].
Male (n=3) similar to female except for sexually dimorphic characters previously discussed and with following specifications.
Gnathosoma - Subcapitulum [160-170 ventral length; 98-109 dorsal length; 81-92 tall]. Chelicerae [132-140 long]. Fangs [27-29 long]. Pedipalp [184-190 long]. Trochanter [23-26 long; 29-30 wide]. Femur [50-51 long; 36-38 wide]. Genu [41-42 long; width 29-30 wide]. Tibia [49-52 long; 19-20 wide]. Tarsus [17-21 long; 8-9 wide].
Dorsum (Fig. 42) - [540-585 long; 412-433 wide]. Dorsal plate [444-487 long; 355-384 wide] with minute secondary sclerotization. Dorso-glandularia-4 [151-167 apart] roughly equal in distance anterior to [32-53] and lateral to [31-43] muscle scars. Anterio-medial platelet [151-158 long; 80-85 wide]. Anterio-lateral platelets [180-188 long; 84-91 wide]. Lateral platelets as follows: lateral-1 [44-49 long; 33-38 wide]; lateral-2 [109-114 long; 31-35 wide]; lateral-3 [50-63 long; 19-22 wide]; lateral-4 [75-91 long; 18-29 wide]; lateral-5 [60-65 long; 22-29 wide]; lateral-6 [66-82 long; 20-33 wide]; lateral-7 [52-61 long; 22-30 wide].
Venter (Fig. 42) - [698-740 long; 453-544 wide]. Primary sclerotization [623-655 long]. Gnathosomal bay [71-80 dorsal length; 138-147 ventral length; 54-60 wide]. Coxal field [475-484 long; 325-374 wide]. Coxa-I [253-263 long; 111-117 midlength]. Coxa-II + III [118-131 distance to top of coxa-II; 185-198 distance to top of coxa-III; 382-396 distance to bottom of coxa-III; 251-274 total length]. Coxa-IV [337-356 length to top; 127-139 total length]. Genital field [406-426 distance to top; 547-570 distance to bottom; 142-146 total length; 114-123 width; 263-280 distance from gnathosomal bay; 152-164 distance from coxa-I; 75-91 distance to excretory pore; 148-176 distance to caudad]. Genital skeleton [190-215 long; 110-112 wide]. Distance to excretory pore [623-655].
Legs - total leg and podomere lengths as follows: Leg-I [472 total; trochanter 59-60; basifemur 83-91; telofemur 66-71; genu 88-91; tibia 91-97; tarsus 83-88]. Leg-II [496-515 total; trochanter 61-66; basifemur 84-87; telofemur 65-69; genu 85-97; tibia 96-108; tarsus 102-107]. Leg-III [554-593 total; trochanter 62-69; basifemur 84-89; telofemur 65-74; genu 100-110; tibia 117-126; tarsus 125-136]. Leg-IV [784-822 total; trochanter 80-95; basifemur 109-116; telofemur 114-115; genu 155-162; tibia 164-174; tarsus 155-162].
Etymology.
Specific epithet rollerae after Elizabeth Ashley Roller, my (JCO) life partner.
Distribution.
Reported from only two counties (Mendocino and Nevada) in California.
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.
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