Cryptomyzus Oestlund, 1922

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 : 272-273

Key to the alate viviparous females of the genus Cryptomyzus Oestlund, 1922

( Cryptomyzus karzhantavicus , C. leonuri and C. transiliensis are not included in the key.)

1 Primary rhinarium on 5 th antennal segment much larger than secondary rhinaria, at least 1.5 times longer than the remaining part of this segment distal to rhinarium............................................. C. (Ampullosiphon) stachydis

- Primary rhinarium on 5 th antennal segment about the same size of secondary rhinaria, at most equal in length to the remaining part of this segment distal to rhinarium.................................................................... 2

2 Hairs on abdominal tergites I–IV, and on median frontal and antennal tubercles, needle shaped. Siphunculi without distinct flanges.............................................................................................. 3

- Hairs on abdominal tergites I–IV, and on median frontal and antennal tubercles, capitate. Siphunculi with distinct flanges... 4

3 Third and 4 th antennal segments respectively with about 29, and about 2 secondary rhinaria. Ultimate rostral segment about 1.5 times second segment of hind tarsus............................................ C. (Phlomimyzus) tadzhikistanicus

- Third, 4 th, and 5 th antennal segments respectively with 36–37, 13–14, and 0–2 secondary rhinaria. Ultimate rostral segment 1.0–1.1 times second segment of hind tarsus.................................................. C. (P.) multipilosus

4 Inner protuberance on 1 st antennal segment inconspicuous. Ultimate rostral segment stocky, 1.0–1.1 times second segment of hind tarsus. Siphunculi cylindrical with large flanges. Cauda trapezium-shaped.............. C. (Alataumyzus) malkovskii

- Inner protuberance on 1 st antennal segment well developed. Ultimate rostral segment more slender and more than 1.2 times second segment of hind tarsus (except in C. galeopsidis ). Siphunculi swollen or cylindrical with small flanges........... 5

5 Ultimate rostral segment more than 1.6 times second segment of hind tarsus....................................... 6

- Ultimate rostral segment not more than 1.5 times second segment of hind tarsus................................... 8

6 Third and 4 th antennal segments with no more than 23 and 9 secondary rhinaria. Fourth antennal segment shorter than fifth antennal segment..................................................................................... 7

- Third and 4 th antennal segments respectively with 30–46 and 14–20 secondary rhinaria. Fourth antennal segment longer than fifth antennal segment...................................................................... C. (C.) heinzei

7 Third, 4 th, and 5 th antennal segments respectively with 10–11, 3–5 and 0 secondary rhinaria. Ultimate rostral segment about 2.6 times second segment of hind tarsus......................................................... C. (C.) behboudii

- Third, 4 th, and 5 th antennal segments respectively with 20–23, 9 and 2–3 secondary rhinaria. Ultimate rostral segment 1.6–1.8 times second segment of hind tarsus............................................... C. (C.) sairamugamicus sp. n.

8 Siphunculi approximately cylindrical...................................................................... 9

- Siphunculi distinctly swollen........................................................................... 10

9 Third antennal segment about 0.45 of 6 th antennal segment. Third, 4 th and 5 th antennal segments respectively with 30–47, 12–27, 1–10 secondary rhinaria. Processus terminalis 10.0–10.5 times base of 6 th antennal segment. Siphunculi 2.3–3.1 times of cauda length and 0.16–0.20 of body length............................................................. C. (C.) ribis

- Third antennal segment 0.72–0.76 of 6 th antennal segment. Third, 4 th and 5 th antennal segments respectively with 68–82, 24–28 and 3–6 secondary rhinaria. Processus terminalis 6.6–6.8 times base of 6 th antennal segment. Siphunculi 1.90–1.93 times cauda length and 0.14–0.15 of body length......................................................... C. (C.) alatavicus

10 Siphunculi not more than 4.5 times cauda length............................................................ 11

- Siphunculi more than 5 times cauda length......................................................... C. (C.) taoi

11 Siphunculi less than 0.15 of body length.................................................................. 12

- Siphunculi more than 0.15 of body length................................................................. 13

12 Siphunculi 0.09–0.11 of body length. Third, 4 th and 5 th antennal segments respectively with 22–38, 14–23 and 0–7 secondary rhinaria.............................................................................. C. (C.) alboapicalis

- Siphunculi 0.12–0.14 of body length. Third, 4 th and 5 th antennal segments respectively with 15–28, 6–11 and 0–5 secondary rhinaria................................................................................... C. (C.) ulmeri

13 Ultimate rostral segment not less than 1.45 times second segment of hind tarsus. Siphunculi not less than 3.5 times cauda length and not less than 0.20 of body length..................................................................... 14

- Ultimate rostral segment not more 1.40 times second segment of hind tarsus. Siphunculi not more than 2.0 times the cauda length and not more that 0.18 of body length............................................................... 15

14 Third antennal segment 0.54–0.56 of 6 th antennal segment. Processus terminalis 9.5–9.7 times base of 6 th antennal segment........................................................................................ C. (C.) korschelti

- Third antennal segment 0.65–0.67 of 6 th antennal segment. Processus terminalis 7.7–7.9 times base of 6 th antennal segment.......................................................................................... C. (C.) ballotae

15 Number of hairs on each of abdominal tergites II-IV 9–14. Third antennal segment with 26–45 secondary rhinaria. Siphunculi 0.47–0.55 of length 3 rd antennal segment. Ultimate rostral segment 1.15–1.40 times second segment of hind tarsus............................................................................................. C. (C.) maudamanti

- Number of hairs on each of abdominal tergites II–IV 7–11. Third antennal segment with 25–66 secondary rhinaria. Siphunculi 0.31–0.47 of length 3 rd antennal segment. Ultimate rostral segment 0.95–1.15 times second segment of hind tarsus 3 rd ..................................................................................... C. (C.) galeopsidis complex