Coloradoa ajaniae Kadyrbekov, 2020

Kadyrbekov, R. Kh., 2020, To the knowledge of the genus Coloradoa Wilson, 1910 (Hemiptera: Aphididae), Far Eastern Entomologist 414, pp. 16-24 : 17-19

Coloradoa ajaniae Kadyrbekov , sp. n.

http://zoobank.org/NomenclaturalActs/ F56641E8-F976-46B9-909D-755BF169399E

Figs 1–5

TYPE MATERIAL. Holotype: apterous viviparous female, slide No 5430, Kazakhstan:

Almaty region, Dzhungarian Alatau Mts, Sarkan River canyon, 32 km SE of Sarkan town,

h~ 1400 m, 4. IX 2015, leg. R. Kadyrbekov. Paratypes : 18 apterous viviparous females together with holotype.

DESCRIPTION. Apterous viviparous female (19 specimens). Body is elliptical, 1.20–

1.52 ( Fig. 1 ). Frons is slightly convex, without median and antennal tubercles, with stickformed broadened on the apex setae (0.017 –0.023), which are 0.7–1.0 of basal diameter of

3rd antennal segment (fig. 1 b). Width of head between eyes 0.51–0.58. Antennae are sixsegmented, 0.52–0.74 of body length. Third antennal segment is 1.30–1.67 of 4th one, 0.75–

1.00 of the processus terminalis and 0.50–0.65 of the 6th segment, 0.11–0.15 of the body length, 0.90–1.24 of the siphunculi length. Forth antennal segment is 0.62–0.78 of the 3rd

antennal segment. Fifth antennal segment is 0.83–1.08 of the base of 6th segment. Processus terminalis is 1.5–1.9 of the base of 6th segment, 1.00–1.25 of the 3rd antennal segment, 0.27–

0.36 of the width of head between eyes, with 3 apical setae. Base of 6th segment is 0.57–0.76 of the 3rd antennal segment. Secondary rhinaria are absent. Setae on the 3rd antennal segment

(0.010 –0.012) are short stick-formed, 0.4–0.5 of its basal diameter. Clypeus is normal, rostrum reaches the base of hind coxae. Its apical rostral segment ( Fig. 2 ) is slender, stiletto-formed,

1.0–1.1 of the 2nd segment of hind tarsus, 0.40–0.65 of the length of 3rd antennal segment,

0.65–1.00 of the base of 6th antennal segment, 0.16–0.18 of the width of head between eyes,

0.47–0.64 of the siphunculi length, with 6 accessory setae. There are 6 setae on the penultimate segment. Dorsal setae on 3rd and 8th abdominal tergites are spatula-formed, (0.025 –0.032)

1.1–1.2 and (0.023 –0.029) 1.0–1.3 of basal diameter of the 3rd antennal segment ( Fig. 4 ). 8th

tergite with 6–8 setae. Siphunculi are swollen in the apical part with distinct rims, they are

0.11–0.15 of the body length, 1.35–1.65 of the cauda, 1.55–2.20 of the apical rostral segment, 1.75–2.20 of the 2nd segment of hind tarsus, 1.3–1.7 of the base of 6th segment,

0.27–0.36 of the width of head between eyes ( Fig. 3 ). Cauda is triangular conic, 0.071 –0.093 of the body length, 1.1–1.2 of its basal width, with 5–6 setae ( Fig. 5 ). Genital plate is oval, with

2–4 setae on disc and 8–12 ones along its posterior margin. Legs are normally developed.

Hind femora are 0.28–0.29 of the body length, 0.69–0.76 of the width of head between eyes.

Hind tibiae are 0.46–0.48 of the body length, 1.09–1.21 of the width of head between eyes. Second segment of hind tarsus is 0.62–0.90 of the base of 6th antennal segment. Setae on the femora and tibiae are stick-formed with slightly broadened apices. First tarsal segment with 3: 3: 2 setae.

COLOR IN THE LIFE. Aphids are light-greenish with red eyes.

COLOR ON SLIDE. Body is pale, only apical and penultimate rostral segments, 4‒6th

antennal segments, clypeus, apices of the tibiae and tarsi, apices of siphunculi, cauda, anal and genital plates are darkened.

MEASUREMENTS (holotype). Body 1.28; antennae: 0.74–0.75 : III 0.16, IV 0.10–0.12,

V 0.10, VI 0.28 (0.10+0.18); siphunculi 0.15; cauda 0.11; apical rostral segment 0.092;

second segment of hind tarsus 0.081.

rostral segment; 3 – siphunculus; 4 – dorsal seta; 5 – cauda.

MEASUREMENTS AND RATIONS OF BODY PARTS (apterous viviparous females).

Measurements: BL = 1.20–1.52; ANT = 0.65–1.01; ANT III = 0.14–0.22; ANT IV = 0.09–

0.16; ANT V = 0.09–0.15; ANT VIb = 0.09–0.13; ANT IIIBD = 0.019 –0.023; PT = 0.14 –

0.23; longest seta on ANT III = 0.010 –0.012 ; length of longest seta on ANT VI b = 0.006 –

0.008; length of longest frontal seta = 0.017 –0.023; HW = 0.51–0.58; URS = 0.081 –0.100;

width of URS = 0.046 –0.058; HFEM = 0.35–0.44; HTIB = 0.56–0.70; HT II = 0.08–0.10;

longest seta on ABD TERG III = 0.025 –0.032 ; longest seta on ABD TERG VIII = 0.023 –

0.029; SIPH = 0.14–0.21; cauda = 0.09–0.13; basal width of cauda = 0.104 –0.115. Ratios :

ANT/BL = 0.52–0.74; PT/ANT VI b = 1.5–1.9; PT/ANT III = 1.00–1.25; PT/HW = 0.27–

0.36; ANT III/BL = 0.11–0.15; ANT III/SIPH = 0.90–1.24; ANT III/ANT IV = 1.30–1.67;

ANT III/ANT VI = 0.50–0.65; ANT III/PT = 0.75–1.00; ANT IV/ANT III = 0.62–0.78; ANT

V/ANT VIb = 0.83–1.08; ANT VIb/ANT III = 0.57–0.76; longest seta on ANT III/ ANT III

BD = 0.4–0.5; cephalic frontal seta/ANT III BD = 0.7–1.0; URS/its basal width = 2.0–2.5;

URS/ANT VI b = 0.65–1.00; URS/HW = 0.16–0.18; URS/HT II = 1.0–1.1; URS/ SIPH =

0.47–0.64; HFEM/BL = 0.28–0.29; HFEM/HW = 0.69–0.76; HTIB/BL = 0.46–0.48;

HTIB/HW = 1.09–1.21; H II/ANT VI b = 0.62–0.90; longest seta on ABD TERG III/ANT

III bd = 1.1–1.2; longest seta on ABD TERG VIII/ ANT III bd = 1.0–1.3; SIPH/BL = 0.11–

0.15; SIPH/HW = 0.27–0.36; SIPH/cauda = 1.35–1.65; SIPH/ANT VI b = 1.3–1.7; SIPH/

URS = 1.55–2.20; SIPH/HT II = 1.75–2.20; cauda/its basal width = 1.1–1.2; cauda/BL =

0.071 –0.093.

HOST PLANT. Ajania fastigiata (C. Winkl.) Poljak. (Asteraceae) . Aphids suck on the upper side of leafs.

DIAGNOSIS. Coloradoa ajaniae sp. n. similar to C. mesasiatica Kadyrbekov, 2004 , but differs from latter by the ratios of setae on 8th tergites to diameters of third antennal segment in base (1.0–1.3 vs 0.8–1.0), processus terminalis to width of head between eyes (0.27–0.36

in comparison to 0.33–0.55), number of setae on 8th tergite (6–8 vs 8–10) and host plant from another genus.

DISTRIBUTION. Kazakhstan.

ETYMOLOGY. Species is named after the generic name of host plant.

Figures

Figs 1–5. Coloradoa ajaniae sp. n., apterous viviparous female: 1 – body; 2 – ultimate