Macrosiphoniella (s. str.) sarmatica Kadyrbekov, Tleppaeva et Kolov, 2022

Kadyrbekov, R. Kh., Tleppaeva, A. M. & Kolov, S. V., 2022, Two new species of the genus Macrosiphoniella Del Guercio, 1911 (Hemiptera, Aphidomorpha: Aphididae) inhabits yarrow in Kazakhstan, Far Eastern Entomologist 466, pp. 1-8 : 6-8

Macrosiphoniella (s. str.) sarmatica Kadyrbekov, Tleppaeva et Kolov , sp. n.

https://zoobank.org/NomenclaturalActs/ 4D2B98A7-4927-4671-B543-94EB8C1BE763

Figs 3–6

TYPE MATERIAL. Holotype – apterous viviparous female (prep. No 1933),

Kazakhstan: West Kazakhstan region, env. of Aksay City, on Achillea millefolium ,

21. VI 1990 , R. Kh. Kadyrbekov leg. Paratypes: 5 apterous viviparous females together with holotype.

DESCRIPTION. Apterous viviparous female (6 specimens). Body obovate ,

1.61–2.00. Frontal groove wide, its depth 0.13–0.18 times the distance between apices of antennal tubercles ( Fig. 3 ). Setae of frontal groove long, pointed at end,

1.6–1.7 times as long as diameter of third antennal segment at base. Antennae sixsegmented, 1.01–1.21 times as long as body. Length of segment III 1.07-1.30 times as long as segment IV, 1.24–1.45 times as long as head between eyes, 1.36–1.71

times as long as siphunculi, 0.53–0.74 times as long as antennal segment VI, 0.70–

0.96 times as long as processus terminalis. It has 2–9 secondary rhinaria located in the distal half (fig. 4). Setae on segment III pointed at end, 0.9–1.1 times as long as diameter of segment III at base. Processus terminalis 3.14–3.75 times as long as base of antennal segment VI, 1.24–1.45 times as long as head between eyes, 1.36–1.71

times as long as siphunculi. The rostrum is long, reaching the hind coxae. Ultimate segment is slender, stylet-like ( Fig. 5 ), 1.09–1.18 times as long as second segment of hind tarsus, 0.93–1.16 times as long as base of antennal segment VI, with 6 accessory setae. Setae on abdominal tergite III 1.6–1.7, on tergite VIII 1.6–1.8 times as long as basal diameter of antennal segment III. Abdominal tergite III has 10–16, between siphunculi 4–8, on VIII 4–6 long setae. Along anterior margin of subgenital plate are 2, along posterior margin are 6–8 long setae. The siphunculi are subcylindrical,

with clear rims, with a reticular structure of the upper part, occupying 0.48–0.59 of their length ( Fig. 6 ). Siphunculi are 0.18–0.20 times as long as the body, 0.80–0.94

times as wide as the head between the eyes, and 1.04–1.21 times as long as the cauda.

Cauda finger-shaped with marked compression in the basal half, with 10–13 long,

thickened setae ( Fig. 6 ). Legs long, their hind femora 0.38–0.43 body length, 0.52–

0.57 hind tibia length, 1.75–2.16 head width between eyes. Length of hind tibia

3.1–3.9 times head width, 0.66–0.78 body length. The second segment of the hind tarsus is 0.84–1.00 times as long as the base of the VI antennal segment. First tarsal segment with 3, 3, 3 setae.

MEASUREMENTS (holotype). Body 2.35, antennae 2.83–2.93, antennal segments: III 0.65–0.68, IV 0.54, V 0.50–0.51, VI (0.18–0.20+0.73–0.78); width of head between eyes 0.46; siphunculi 0.43/0.45; cauda 0.41; ultimate rostral segment

0.14; second segment of hind tarsus 0.16.

INTRAVITAL COLOR. Light green in white pollination. Head, antennae (except base of III segment), legs (except distal half of femora and trochanters), siphunculi,

cauda are brown.

PREPARATION COLOR. Head, antennae (except base of segment III), clypeus,

ultimate and penultimate rostral segments, coxae, proximal parts of femora, tibiae,

tarsi, siphunculi, cauda, subgenital and anal plates are brown. The rest of the body is light.

4 – abdomen with siphunculi and cauda.

DIAGNOSIS. The new species stands apart among the species of the genus

Macrosiphoniella Del Guercio, 1911 living on Achillea ( Blackman & Eastop,

2021). Among other species of the nominative subgenus without antesiphuncular sclerites according to the key of Kadyrbekov (2019), it is close to Macrosiphoniella terraealbae Kadyrbekov, 2000 . Macrosiphoniella sarmatica sp. n. differs from this species in the ratios of the length of the processus terminalis to the length of the base of the 6th antennal segment (3.15–3.75 vs 2.7–3.1), length of the frontal setae to diameter of segment III at base. (1.6–1.7 vs 2.2–2.6), and the number of accessory setae on the ultimate segment of the rostrum (6 vs 7–8) and by the number of setae on the cauda (10–13 vs 12–19).

HABITAT. Aphids live on the stems and in the inflorescences of Achillea millefolium L. in scattered colonies. Only apterous viviparous females have been found.

DISTRIBUTION. Kazakhstan: West Kazakhstan region.

ETYMOLOGY. Species is named after the Sarmatians, a large confederation of ancent nomadic peoples who dominated the West Kazakhstan steppe.

Figures

Figs 3–6. Macrosiphoniella (Macrosiphoniella) sarmatica Kadyrbekov, Tleppaeva et Kolov, sp. n. 1 – frons; 2 – third and forth antennal segments; 3 – ultimate rostral segment;