Cryptomyzus sairamugamicus, Kadyrbekov, 2021

Kadyrbekov, Rustem Kh., 2021, Two new aphid species of the genus Cryptomyzus Oestlund, 1922 (Hemiptera Aphididae) from Kazakhstan, and keys to apterous and alate viviparous females, Zootaxa 4903 (2), pp. 265-274 : 266

Cryptomyzus sairamugamicus sp. n.

( Fig. 1 , Table 1 )

Type material. Holotype: apterous viviparous female, slide no 5027, South Kazakhstan, West Tien Shan, Sairam-Ugam natural park, Karzhantau gorge, Kyrykkyz pass, H- 1820 m a.s.l., Phlomis salicifolia , 8.08.2014, R. Kadyrbekov (Institute of Zoology, Almaty, Kazakhstan). Paratypes—2 alate viviparous females, 8 apterous viviparous females, same place and date; 11 apterous viviparous females, no 4731, South Kazakhstan, West Tien Shan, Sairam-Ugam natural park, Ugam gorge, Sairamsu ravine, 10 km to north-east from Kaskasu village, H- 1500 m a.s.l., Phlomis salicifolia , 7.07.2013, R. Kadyrbekov (Institute of Zoology, Almaty, Kazakhstan).

Etymology. The new species is named after Sairam-Ugam natural park, where it was collected.

Apterous viviparous femal e (from 10 specimens; for measurement see Table 1 ). In life: body white with green markings, eyes are reddish. On slide: body and appendages pale without dark parts apart from pale brown tarsi. Body is elliptic (fig. 1 a). The frontal groove is not deep. Its depth 0.12–0.17 of the distance between bases of antennae. Antennal tubercles are distinct and divergent. Median frontal tubercle is well-developed, quadrate (fig. 1a). Cephalic hairs are long, with thick bases, capitate. Antennae are six-segmented. The first antennal segment has a large protuberance on the inner side at apex and bears 4–5 hairs. Numbers of hairs on 2 nd– 6 th antennal segments are II—3–4, III—6–10, IV—4–6, V—3–6, VI—5–6. Basal part of the 3 rd antennal segment with 0–2 secondary rhinaria (fig. 1 b). Hairs on the 3 rd antennal segment are short, slightly capitate. Rostrum reaches beyond the bases of the hind coxae. Its ultimate rostral segment is long, slender (fig. 1 c) and bears 4–5 accessory hairs. Siphunculi are slightly swollen, with small distinct flanges (fig. 1 e). Cauda is bluntly triangular or helmet-shaped (fig. 1 f). Dorsal hairs on the 2 nd– 5 th abdominal tergites are capitate. Numbers of hairs on abdominal tergites: II–V—14–16, VIII—6–8. Marginal tubercles are absent. Genital plate is broadly oval, with 2 discal hairs and 6–8 posterior hairs. Legs are long (fig. 1 a). Hairs on the hind tibiae are capitate, 0.9–1.2 of its width at midlength. First tarsal segments with 3:3:3 setae.

Alate viviparous female (from 2 specimens; for measurement see Table 1 ). In life: head, thorax, antennae, apices of tibiae, tarsi, and abdominal markings of the abdomen are pale brown, siphunculi, cauda whitish, eyes reddish. On slide: head, thorax, antennae, clypeus, ultimate rostral segment, apices of tibiae, tarsi, and sclerites of the 3 rd– 6 th abdominal tergites are pale brown. Siphunculi, cauda, legs, genital and anal plates are pale. Frontal groove is not deep. Its depth 0.15–0.16 of the distance between bases of antennae. Antennal tubercles are distinct and divergent. Median frontal tubercle is absent. Cephalic hairs are short, slightly capitate. Antennae are six-segmented. The first antennal segment has a small protuberance on the inner side and bears 4 hairs. Numbers of hairs on 2 nd– 6 th antennal segments are II—3, III—6–10, IV—5–6, V—3–5, VI–5. Number of the secondary rhinaria on the 3 rd– 5 th antennal segments: 20–23, 9, and 2–3. Hairs on the 3 rd segment are very short, slightly capitate. Rostrum reaches beyond the base of the hind coxae. Its ultimate rostral segment is long, and slender. Siphunculi are slightly swollen, with small distinct flanges. Cauda is bluntly triangular. Abdomen has transversal sclerotic bar on each of the 3 rd– 6 th abdominal tergites. Dorsal hairs on the 2 nd– 5 th tergites are slightly capitate. Legs are long. Hairs on the hind tibia are slightly capitate, 0.7 of its width in the midlength. First tarsal segments with 3:3:3 setae.

Biology. This aphid lives on the undersides of leaves of Phlomis salicifolia Regel (Lamiaceae) . It is not attended by ants. The life cycle is unknown.

Taxonomical notes. The new species resembles C. (Cryptomyzus) heinzei Hille Ris Lambers and C. (Cryptomyzus) behboudii Remaudière et Davatchi in having a long ultimate rostral segment which in apterae is not less than 1.8 times longer than the second segment of hind tarsus (not more than 1.5 times in all species). Apterae of Cryptomyzus sairamugamicus sp. n. differ from those of C. heinzei in having fewer secondary rhinaria on 3 rd antennal segment (0–2 versus 6–8), smaller ratio of 4 th antennal segment to 5 th antennal segment (0.86–0.97 in comparison with 1.05–1.10), and shorter hairs on 3 rd antennal segment (longest hairs 0.5–0.8 of length of base of 6 th antennal segment compared with 0.9–1.0 in C. heinzi ). Apterae of the new species differ from those of C. behboudii (which is also described from a species of Phlomis ) in the ratios of ultimate rostral segment to second segment of hind tarsus (1.8–2.0 versus 2.7–3.0 in C. behboudii ), ultimate rostral segment to base of 6 th antennal segment (1.4–1.6 in comparison with 2.8–3.3), of siphunculi to cauda length (3.7–5.0 against 2.9–3.5), of siphunculi to body length (0.23–0.30 and 0.17–0.20), and of second segment of hind tarsus to base of 6 th antennal segment (0.75–0.85 versus 1.0–1.1).

Figures

FIGURE 1. Cryptomyzus sairamugamicus sp. n.: a—body; b—third antennal segments; c—ultimate rostral segment; d—dorsal hair; e—siphunculus; f—cauda.