Aphidura jimoi, Barjadze, 2019

Barjadze, Shalva, 2019, A new species of Aphidura Hille Ris Lambers, and additional data for Aphidura pakistanensis (Hemiptera: Aphididae) from Republic of Georgia, Zootaxa 4683 (3), pp. 421-430 : 422-425

Aphidura jimoi sp. nov.

Figs 1–4 , Table 1

urn:lsid:zoobank.org:act:8C605686-2B0E-499E-B06E-7FBA5E5325EC

Type material. Holotype: 1 apt., encircled by red marker on slide, coll. no. 13324B, GEORGIA, Mtskheta–Mtianeti Region, Mtskheta Municipality, Saguramo Range, Zedazeni Mountain , 41°52’14.45”N, 44°45’59.15”E, 1162 m alt., 12.viii.1969, on Dianthus , leg. J. Holman . Paratypes: 11 apt. on 4 slides, the same data as for holotype . Holotype and 2 paratypes on one slide and 3 paratypes on one slide are deposited at IECA; 3 paratypes on one slide are deposited at IZISU and 3 paratypes on one slide are deposited at the BMNH.

Etymology. The author has chosen the specific name in honour of Jimo Gigolashvili, who was his teacher of zoology at high school.

Description. Apterous viviparous female (n=12). Color in life: unknown. Pigmentation on slide: ANT I–II pale brown; ANT III pale with dark brown apex; ANT IV pale brown with dark brown apex or completely dark brown; ANT V–VI dark brown; head dusky; URS and tarsi dark brown; mesosternal mammariform processes dusky; coxae and trochanters dusky; femora dusky with darker apical halves; tibiae with pale middle section and pale brown bases and apices; dark intersegmental sclerites on abdomen always present; sometimes variably–shaped dark spots are developed in pleural and spinal positions on the abdomen in front of SIPH apart from intersegmental sclerites; SIPH brown with darker apical halves; brown postsiphuncular sclerites present; dusky transverse bands present on ABD TERG VII–VIII; subgenital and anal plates pale brown; cauda dusky or sometimes brown; stigmal plates brown (figs 1–4). Body oval. Frons w–shaped (figs 2, 4). Head with rugosity lines and spinules. ANT 6–segmented (figs 1, 4). ANT tubercles well developed. ANT cuticle imbricated. Rostrum short, reaching to middle coxae. Setae on body dorsum, antennae, and most of those on legs thick, with apices blunt or slightly capitate. Setae on the ventral side of abdomen long and pointed. Mesosternal mammariform processes convex, low and wide with spinules (figs 2, 4). MTu absent on AND TERG II–VI. STu absent on AND TERG VII–VIII. SIPH distinctly swollen on distal halves, with spinulose imbrication, and a distinct preapical incision and flange (figs 3, 4). Cauda elongate triangular (figs 3, 4). Measurements, ratios and chaetotaxy are provided in Table 1 .

Biology. The new species lives on Dianthus sp. Other morphs and life cycle of the new species are unknown.

Differential diagnosis. Apterous viviparous females of A. jimoi morphologically resemble to those of A. naimanica Kadyrbekov, 2013 considering Kadyrbekov 2013; Nieto Nafría et al. 2014 and my own observations by (1) pigmentation of SIPH, and in the ratios of (2) PT/ANT VI b, (3) MSL ANT III/ANT III BD, (4) URS/HT II, (5) SIPH/CAUDA L, (6) SIPH MaxW/SIPHMinW and (7) number of setae on cauda ( Kadyrbekov 2013). However, they can be distinguished from each other by the (1) length of MSL on frons: 0.007 –0.013 mm in A. jimoi , while 0.022 –0.028 mm in A. naimanica and in the ratio of (2) MSL on frons/ANT III BD: 0.35–0.57 in A. jimoi , while 1.0– 1.4 in A. naimanica ; (3) number of accessory setae on URS: 6–9 in A. jimoi , while 10–14 in A. naimanica ; (4) number of setae on the posterior margin of subgenital plate: 8–11 in the new species, while 12–15 in A. naimanica ; (5) shape of the mesosternal mammariform processes: wide and low in the new species, while narrow and high in A. naimanica ; and (6) A. jimoi feeds on Dianthus sp. whereas A. naimanica lives on Gypsophila spp.

Apterous viviparous females of A. jimoi sp. nov. are distinguished from the same morph of the Caryophylla-ceae–feeding A. pakistanensis by the ratios of the (1) CAUDA L/CAUDA W: 1.16–1.68 in A. jimoi , while 0.71–1.08 in A. pakistanensis and (2) SIPH MaxW/SIPHMinW: 1.32–1.88 in A. jimoi , while 1.00– 1.23 in A. pakistanensis considering Nieto Nafría et al. 2013 and and my own observations. Apterous viviparous females of A. jimoi sp. nov. are distinguished from the same morph of the other Caryophyllaceae–feeding species— A. pujoli by the (1) coloration of SIPH: dark in the new species, while it is pale in A. pujoli ; the ratios of the (2) SIPH L/ANT III: 0.94–1.28 in the new species, while 0.65–0.95 in A. pujoli ; (3) URS/HT II: 1.02–1.15 in the new species, while 0.78–0.92 in A. pujoli ( Blackman & Eastop 2019) . Apterous viviparous females of A. jimoi sp. nov. are distinguished from apterous females of the Caryophyllaceae–feeding A. picta by the (1) shape of SIPH: distinctly swollen distally in the new species, while slightly swollen distally in A. picta ; (2) MSL on ANT III/ANT III BD: 0.24–0.38 in the new species, while 0.4–1.0 in A. picta ( Blackman & Eastop 2019) .

Distribution. Only known from the type locality—Zedazeni Mountain in Saguramo Range, Mtskheta Municipality, Mtskheta–Mtianeti Region, East Georgia, Caucasus.

Figures

FIGURES 1–4. Aphidura jimoi sp. nov. Apterous viviparous female, holotype. 1. ANT (bar: 100 μm); 2. Anterior part of body (bar: 200 μm); 3. Posterior part of abdomen with SIPH and cauda (bar: 100 μm); 4. Habitus (bar: 500 μm).

Tables

TABLE 1. Metric and meristic characteristics of Aphidura jimoi sp. nov. and A. pakistanensis Nieto Nafría, Mier Durante & Remaudière, 2013 from Georgia.

species	Aphidura jimoi	A. pakistanensis from	A. pakistanensis from
	(apt., n=12)	Georgia (apt., n=6)	Georgia (al., n=11)
Characters
BL	1.155–1.587	1.562–1.987	1.516–1.827
BW	0.744–1.140	1.111–1.370	0.701–0.833
ANT	0.903–1.330	1.020–1.188	1.336–1.607
ANT III	0.214–0.329	0.279–0.320	0.396–0.521
MSL ANT III	0.006–0.008	0.009–0.012	0.007–0.011
ANT IV	0.129–0.229	0.129–0.195	0.210–0.277
ANT V	0.105–0.186	0.123–0.170	0.177–0.240
ANT VI b	0.076–0.090	0.101–0.122	0.123–0.167
PT	0.239–0.360	0.218–0.252	0.248–0.324
HW	0.347–0.423	0.418–0.439	0.383–0.410
MSL on frons	0.007–0.013	0.010–0.013	0.010–0.014
URS L	0.107–0.125	0.107–0.120	0.106–0.119
Posterior seta on hind trochanter	0.017–0.025	0.029–0.037	0.024–0.033
HFEM	0.317–0.490	0.412–0.473	0.458–0.502
MSL HFEM dorsal	0.007–0.011	0.011–0.014	0.010–0.013
MSL HFEM ventral	0.010–0.017	0.013–0.020	0.011–0.016
HTIB	0.593–0.884	0.718–0.853	0.922–1.006
MSL HTIB dorsal at apical part	0.020–0.034	0.037–0.045	0.025–0.036
HTII L	0.096–0.116	0.134–0.147	0.143–0.158
MSL ABD TERG II–IV	0.006–0.009	0.008–0.009	0.011–0.014
MSL ABD TERG VIII	0.014–0.027	0.022–0.034	0.019–0.029
SIPH L	0.266–0.343	0.131–0.158	0.140–0.162
CAUDA L	0.107–0.158	0.148–0.162	0.146–0.167
Ratios
ANT/BL	0.67–0.90	0.57–0.69	0.78–0.96
BW/BL	0.57–0.72	0.64–0.77	0.40–0.50
ANT III/SIPH	0.78–1.06	1.83–2.44	2.66–3.64
MSL ANT III/ANT III BD	0.24–0.37	0.35–0.52	0.26–0.39
PT/ANT VI b	2.82–4.00	1.88–2.19	1.85–2.41
PT/ANT V	1.75–2.39	1.42–1.65	1.23–1.65
PT/ANT IV	1.49–2.27	1.22–1.75	1.08–1.43
PT/ANT III	0.84–1.24	0.72–0.76	0.54–0.74
PT/HW	0.64–0.85	0.51–0.58	0.65–0.81
MSL on Frons/ANT III BD	0.35–0.57	0.38–0.48	0.32–0.54
URS L/URS W	1.83–2.25	1.55–1.85	1.53–1.89
URS L/ANT VI b	1.25–1.43	0.92–1.10	0.71–0.91
URS L/HW	0.28–0.32	0.25–0.27	0.28–0.30
HFEM/BL	0.23–0.35	0.23–0.27	0.26–0.31

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