Puto, Signoret

Key to species of known adult males of Puto View in CoL View at ENA (revised from Powell & Miller 2024)

Notes: In Powell & Miller’s (2024) original key, P. huangshanensis was characterized by “with aedeagus acute apically or bifurcate apically”; however, having examined specimens, we have revised this to “aedeagus blunt apically”. We were not able to find morphological characters to distinguish the adult males of P. cupressi from P. sinensis because the descriptions of P. cupressi are very simple, so we distinguished them by their distributions and host-plant preferences.

1(0) Wings fully developed................................................................................. 2

- Wings absent or brachypterous.......................................................................... 22

2(1) Aedeagus acute or bifurcate apically...................................................................... 3

- Aedeagus blunt apically............................................................................... 14

3(2) Claw with denticle present.............................................................................. 4

- Claw denticle absent................................................................ P. philo Powell & Miller

4(3) Tarsal digitules simple, not enlarged...................................................................... 5

- Tarsal digitules enlarged...................................................................... P. ulter Ferris View in CoL

5(4) Antennal segment II with several elongate setae each with basal satellite setae..................................... 6

- Antennal segment II without elongate setae with basal satellite setae............................ P. atriplicis McKenzie View in CoL

6(5) Multilocular pores absent or venter with a total of 8 or fewer in medial and mediolateral areas of abdominal segments III–VII............................................................................................. 7

- Multilocular pores present on venter, totalling more than 8 in medial and mediolateral areas of abdominal segments III–VII.. .................................................................................................. 18

7(6) Antennal segment IX with longest seta less than 400 µm long.................................................. 8

- Antennal segment IX with longest seta more than 400 µm long.............................. P. antioquensis (Murillo) View in CoL

8(7) Aedeagus with teeth proximally, but apex without teeth....................................................... 9

- Aedeagus without teeth proximally, but apex with teeth...................................................... 10

9(8) Each side of unsclerotized area anterior to ocular sclerite and preocular ridge with 10 or more multilocular pores.......................................................................................... P. calcitectus (Cockerell) View in CoL

- Each side of unsclerotized area anterior to ocular sclerite and preocular ridge with 6 or fewer multilocular pores........................................................................................ P. kosztarabi Miller & Miller View in CoL

10(8) Head with fewer than 20 multilocular pores............................................................... 11

- Head with more than 20 multilocular pores........................................ P. decorosus McKenzie View in CoL (in part)

11(10) Tegulae each with fewer than 15 setae.................................................................... 12

- Tegulae each with more than 15 setae.................................................................... 13

12(11) Antennal segment IX with longest seta less than 270 µm long................................................................................. P. yuccae (Coquillett) View in CoL and P. echinatus McKenzie View in CoL (in part) (California Channel Islands)

- Antennal segment IX with longest seta over 270 µm long.................................. P. mexicanus (Cockerell) View in CoL

13(11) Each glandular pouch containing fewer than 200 pores.................................... P. simmondsiae McKenzie View in CoL

- Each glandular pouch containing more than 200 pores..................................... P. brom Powell & Miller

14(2) Antennal segment III less than 350 µm long; each side of head with 6 (or occasionally 7) eyes plus 1 ocellus............ 15

- Antennal segment III more than 350 µm long; each side of head with 7 eyes plus 1 ocellus.......................... 16

15(14) Head (anterior to preocular ridge) with fewer than 5 multilocular pores............................ P. sandini Washburn View in CoL

- Head (anterior to preocular ridge) with more than 5 multilocular pores......................... P. antennatus (Signoret) View in CoL

16(14) Fifth antennal segment longest.......................................................... P. huangshanensis Wu

- Fourth or sixth antennal segment longest.................................................................. 17

17(16) Old World species, feeding on Angiospermae....................................... P. sinensis Zheng & Wu , sp. n.

- New World species, feeding on Gymnospermae............................................. P. cupressi (Coleman) View in CoL

18(6) Each glandular pouch containing fewer than 350 pores; diameter of each pouch pore cluster less than 300 µm........... 19

- Each glandular pouch containing more than 350 pores; diameter of each pouch pore cluster more than 300 µm............................................................................................... P. albicans McKenzie View in CoL

19(18) Antennal segment III shorter than 400 µm................................................................. 20

- Antennal segment III longer than 400 µm................................................. P. arctostaphyli Ferris View in CoL

20(19) Tegulae each with fewer than 12 setae. Head (anterior to preocular ridge) with fewer than 6 ventral multilocular pores......................................................... P. echinatus McKenzie View in CoL (in part) (California Channel Islands )

- Tegulae each with more than 18 setae. Head (anterior to preocular ridge) with more than 10 ventral multilocular pores.... 21

21(20) Body densely setose; medial and mediolateral areas of abdominal segment III with more than 40 ventral setae....................................................................................... P. decorosus McKenzie View in CoL (in part)

- Body not conspicuously setose; medial and mediolateral areas of abdominal segment III with fewer than 30 ventral setae........................................................... P. echinatus McKenzie View in CoL (in part) (inland, mainland USA)

22(1) Each side of head with 6 or 7 eyes. Aedeagus apically acute or bifurcate......................................... 23

- Each side of head with 4 eyes. Aedeagus blunt apically................................. P. superbus ( Leonardi, 1907) View in CoL

23(22) Antennae each with 10 segments................................. P. echinatus McKenzie View in CoL (in part) (coastal California)

- Antennae each with 9 segments................................................... P. ambiguus (Fullaway, 1910) View in CoL