Neoceruraphis, Shaposhnikov, 1956

Stekolshchikov, Andrey V., 2022, Revision of the genus Neoceruraphis Shaposhnikov, 1956 (Hemiptera: Aphididae), Zootaxa 5159 (1), pp. 23-63 : 59-60

Key to species of the genus Neoceruraphis

Fundatrix

1. Siphunculi 108–168 long, 0.04–0.07 times as long as body, with 0–9 finely pointed setae. Second segment of hind tarsus 0.92–1.36 times as long as base of last antennal segment. Processus terminalis 0.69–1.34 times as long as base of last antennal segment. Abdominal tergite VIII with 6–11, cauda with 7–22 setae. Pheromone plates on the hind tibia are located in the distal third of the tibia closer to its outer margin.................................. N. pseudosensoriata ( Pashtshenko, 1988)

2. Siphunculi 177–233 long, 0.07–0.09 times as long as body, without setae. Second segment of hind tarsus 1.24–1.78 times as long as base of last antennal segment. Processus terminalis 1.20–2.22 times as long as base of last antennal segment.Abdominal tergite VIII with 10–16, cauda with 5–8 setae. Pheromone plates on the hind tibia are mostly located in the middle part of the tibia closer to its inner margin................................................... N. viburnicola ( Gillette, 1909)

Alatae viviparous female (emigrant)

1. Siphunculi 2.32–3.38 times as long as cauda and with 9–20 finely pointed setae. Third antennal segment with 35–69, base of last antennal segment with 10–20, cauda with 8–21 setae. Pheromone plates on the hind tibia are located in the distal third of the tibia closer to its outer margin........................................ N. pseudosensoriata ( Pashtshenko, 1988)

2. Siphunculi 1.39–2.41 times as long as cauda and without setae. Third antennal segment with 14–33, base of last antennal segment with 2–5, cauda with 6–11 setae. Pheromone plates on the hind tibia are located in the distal half of the tibia closer to its inner margin................................................................. N. viburnicola ( Gillette, 1909)

Apterous viviparous female (exules)

1. Siphunculi with 9–20 finely pointed setae. Processus terminalis 1.56–2.17 times as long as base of last antennal segment. The longest setae on 3rd antennal segment—76–95, on abdominal tergite III—81–101; the ratio of the longest setae on 3rd antennal segment and the longest setae on abdominal tergite III to the articular diameter of the 3rd antennal segment 2.90–4.00 and 3.10–4.13 respectively. Third antennal segment with 42–57, base of last antennal segment with 10–14 setae. Pheromone plates on the hind tibia are located in the distal third of the tibia closer to its outer margin.................................................................................................... N. pseudosensoriata ( Pashtshenko, 1988)

2. Siphunculi without setae. Processus terminalis 2.67–3.63 times as long as base of last antennal segment. The longest setae on 3rd antennal segment—38–53, on abdominal tergite III—37–45; the ratio of the longest setae on 3rd antennal segment and the longest setae on abdominal tergite III to the articular diameter of the 3rd antennal segment 1.67–2.38 and 1.53–2.00 respectively. Third antennal segment with 23–31, base of last antennal segment with 2–3 setae. Pheromone plates on the hind tibia are located in the distal half of the tibia closer to its inner margin........................... N. viburnicola ( Gillette, 1909)

Gynopara

1. Siphunculi with 2–8 finely pointed setae. Processus terminalis 2.06–2.79 times as long as base of last antennal segment. Siphunculi 1.51–2.21 times as long as cauda. Third antennal segment with 36–56, base of last antennal segment with 11–17 setae and ultimate rostral segment with 6–10 additional setae. Pheromone plates on the hind tibia are absent and only sometimes there is one plate.......................................................... N. pseudosensoriata ( Pashtshenko, 1988)

2. Siphunculi without setae. Processus terminalis 3.78–6.19 times as long as base of last antennal segment. Siphunculi 2.21–2.66 times as long as cauda. Third antennal segment with 19–37, base of last antennal segment with 1–5 and ultimate rostral segment with 3–6 additional setae. Hind tibia with 0–25 pheromone plates....................... N. viburnicola ( Gillette, 1909)

Male

2. The longest setae on 3rd antennal segment 28–38, on abdominal tergite III 25–35; their ratio to the articular diameter of the segment 0.80–1.36 and 0.73–1.25 respectively. Processus terminalis 4.83–5.86 times as long as base of last antennal segment. Ultimate rostral segment 0.97–1.27 times as long as siphunculi. Third antennal segment with 14–24, base of last antennal segment with 2–3 setae........................................................... N. viburnicola ( Gillette, 1909)

Oviparous female.

1. Siphunculi 0.25–0.36 times as long as 3rd antennal segment and 0.77–0.83 times as long as cauda. Ultimate rostral segment 1.39–1.58 times as long as 2nd segment of hind tarsus and 1.96–2.53 times as long as siphunculi. Processus terminalis 0.84– 1.17 times as long as base of last antennal segment. Subgenital plate with 46–54, cauda with 8–12 setae.................................................................................... N. pseudosensoriata ( Pashtshenko, 1988)

2. Siphunculi 0.43–0.65 times as long as 3rd antennal segment and 0.84–1.25 times as long as cauda. Ultimate rostral segment 1.18–1.41 times as long as 2nd segment of hind tarsus and 1.15–1.94 times as long as siphunculi. Processus terminalis 1.65– 1.95 times as long as base of last antennal segment. Subgenital plate with 27–38, cauda with 12–17 setae........................................................................................... N. viburnicola ( Gillette, 1909)