Neopsittaconirmus

Sychra, Old Ř Ich, 2006, Neopsittaconirmus vendulae, a new species of louse (Phthiraptera: Philopteridae) from the Cockatiel Nymphicus hollandicus (Psittaciformes: Cacatuidae), Zootaxa 1270, pp. 57-68 : 65-68

Key to the species of Neopsittaconirmus

1 Marginal carina with two small interruptions, and small ventral anterior plate ( Fig. 8 ), tergo­lateral setae absent, posterior margin of pteronotum with 5 long setae on each side ...................................................................................................... N. kea (Kellogg)

­ Marginal carina entire ( Fig. 1 ), without anterior plate, tergo­lateral setae present at least on tergite V, posterior margin of pteronotum with 3 – 4 long setae on each side .. 2

2 Tergo­lateral setae present on tergite III ....................................................................... 3

­ Tergo­lateral setae absent on tergite III ........................................................................ 4

3 Tergo­lateral setae present on tergites VI–VII ............................................................. 8

­ Tergo­lateral setae absent on tergites VI–VII................................................................ 7

4 Tergo­lateral setae present on tergite IV ...................................................................... 5

­ Tergo­lateral setae absent on tergite IV....................................................................... 21

5 Tergo­lateral setae present on tergite VI ..................................................................... 16

­ Tergo­lateral setae absent on tergite VI........................................................................ 6

6 Tergo­lateral setae present on tergite VII .................................................................... 19

­ Tergo­lateral setae absent on tergite VII ..................................................................... 11

7 Large, dark species: male TL at least 1.86 mm, mesosome simple as long as wide ( Fig. 21 ). Female TL at least 2.09 mm, SGP rounded posteriorly .............. N. borgiolii Conci

­ Small pale species: male TL no more than 1.67 mm, mesosome with a median cam­ panuliform sclerotization ( Fig. 22 ). Female TL no more than 1.97 mm, posterior mar­ gin of SGP ending in a very acute angle ............................... N. hoogstraali Guimarães

8 Species with conspicuous pattern of pigmentation, posterior margin of pteronotum with 4 long setae on each side................................................................ N. eos (Giebel)

­ Entirely pale species without pigmentation, posterior margin of pteronotum with 3 long setae on each side ................................................................................................. 9

9 Outer tergal seta on VII much longer than corresponding seta on VI, approximately size of adjacent pleural seta on VII. Male genitalia with slender curved parameres. Female reticulation of genital chamber ( Fig. 10 ) as a single large median circle........... ....................................................................................... N. shanahani Price & Emerson

­ Outer tergal seta on VII as long as the corresponding seta on VI, shorter than adjacent pleural seta on VII. Male genitalia with parameres short, stout, directed toward midline. Female reticulation of genital chamber otherwise .............................................. 10

10 Large species: male TL at least 2.03 mm. Female TL at least 2.33 mm, reticulation of genital chamber in form of 2 circles reaching each other ( Fig. 10 ) ................................ .......................................................................................... N. albus (Le Souëf & Bullen)

­ Smaller species: male TL no more than 1.79 mm. Female TL no more than 2.06 mm, reticulation of genital chamber in form of 2 separate circles ......................................... .................................................................................................. N. emersoni Guimarães

11 Preantennal region shorter than postantennal. Male marginal row of setae on tergite IX with short central setae placed behind posterior margin of the sclerotized zone of the tergite ( Fig. 16 )............................................................................................................ 12

­ Preantennal region as long as or slightly longer than postantennal. Male marginal row of setae on tergite IX with short central setae distributed on the posterior margin of the sclerotized zone of the tergite ( Fig. 17 ) ...................................................................... 13

12 Very dark species. Male marginal IX with marginal row of 16–18 setae, penis simple ( Fig. 19 ). Female, HL 0.44 mm .................................................... N. clayae Guimarães

­ Species with pigmentation on lateral portions of tergites only. Male tergite IX with marginal row of 26 – 28 setae, penis with a small triangular and acute process on either side of posterior half ( Fig. 20 ). Female HL 0.48 mm. .............. N. andrettae Guimarães

13 Large species: male TL at least 1.89 mm. Female TL at least 2.17 mm. Male posterior margin of tergite IX with a small rounded projection at midline ................................... ........................................................................................ N. interruptofasciatus (Piaget)

­ Smaller species: male TL 1.59 mm. Female TL 1.98 mm. Male posterior margin of tergite IX shaped otherwise........................................................................................ 14

14 Male parameres short and wide, slightly curved inwards ( Fig. 23 ); posterior margin of tergite IX widely concave ................................................................ N. pallipes (Piaget)

­ Male parameres slender, curved towards midline, but with the posterior part turned backwards ( Fig. 21 ); posterior margin of tergite IX shaped otherwise ...................... 15

15 Male posterior margin of tergite IX slightly concave. Female unknown ....................... .................................................................................................... N. jobiensis Guimarães

­ Male posterior margin of tergite IX not concave ........................................................ 26

16 Preantennal region funnel­shaped. Male tergites VII and VIII with row of 6 – 12 or 20 – 24 setae respectively. Female with a group of setae on either side of postvulval region ( Fig. 9 ) ............................................................................... N. anodis (Neumann)

­ Preantennal region rounded. Male tergites VII and VIII with only 4 – 6 or 2 – 4 setae respectively. Female without groups of setae on postvulval region............................ 24

17 Species with conspicuous pattern of pigmentation on tergites, gular and ventral thoracic plates, temples and guttate processes. Male tergite IX with row of setae on either side, median short setae absent. Female, subgenital plate broadly rounded posteriorly

( Fig. 6 ) ................................................................................................ N. vendulae n. sp. ­ Species with pigmentation on lateral portions of tergites only. Male tergite IX fringed by a row of setae, forming a continuous semicircle. Female, SGP angular posteriorly ( Fig. 11 ) ...................................................................................................................... 18 18 Large species: male TL at least 1.73 mm. Female TL at least 2.12 mm ......................... ............................................................................................. N. circumfasciatus (Piaget)

­ Small species: male TL no more than 1.42 mm. Female TL no more than 1.79 mm ..... .................................................................................................... N. difficilis Guimarães

19 Small species: male TL no more than 1.46 mm. Female TL no more than 1.84 mm ..... ........................................................................................................ N. elbeli Guimarães

­ Large species: male TL at least 1.63 mm. Female TL at least 2.01 mm ..................... 20

20 Male parameres long, strongly curved inwards and then backwards; lateral margins of basal apodeme nearly parallel ................................................... N. chandabani (Ansari)

­ Male parameres short, slightly curved inwards; lateral margins of basal apodeme slightly divergent ............................................................. N. meinertzhageni Guimarães

21 Tergo­lateral setae long ............................................................................................... 22

­ Tergo­lateral setae short (as long as tergo­central ones) ............................................. 25

22 Male posterior margin of tergite IX with row of setae forming a continuous semicircle, with spine­like lateral setae ( Fig. 18 ). Female with posterior margin rounded ( Fig. 12 ) ........................................................................................................... N. albidus (Piaget)

­ Male posterior margin of tergite IX with only two pairs of small fine central setae and two larger lateral setae. Female with posterior margin of SGP angular...................... 23

23 Preantennal region slightly funnel­shaped, with large hyaline region on anterior margin. Male with pairs of lateral setae on tergite IX, relatively short and of similar length ...................................................................................................... N. gracilis Guimarães

­ Preantennal region rounded with very narrow hyaline region on anterior margin. Male with one lateral seta on tergite IX several times longer than the other ....................... 24

24 Male parameres short, with lateral margin slightly concave and median margin nearly straight ( Fig. 24 ). Female TL at least 1.72 mm .................... N. inexpectatus Guimarães

­ Male parameres showing two pieces clearly ( Fig. 25 ). Female TL no more than 1.64 mm ........................................................................................... N. abnormis Guimarães

25 Male parameres short, about half the width of the basal apodeme. Female, posterior margin of SGP widely rounded but slightly re­entrant in the middle, with 5 – 6 spinelike setae ( Fig. 14 ) .................................................................... N. strepsiceros (Nitzsch)

­ Male parameres longer than half the width of the basal apodeme. Female, SGP longer and narrower, with conspicuous reticulation of genital chamber, ellipsoid posteriorly, with 8–11 spine­like setae ( Fig. 15 ) .......................................... N. africanus Guimarães

26 Male posterior margin of tergite IX almost straight at midline, mesosome longer than wide. Female SGP with submarginal “V­shaped“ furrow ( Fig. 13 )................................ ....................................................................................................... N. lybartota (Ansari)

­ Male posterior margin of tergite IX slightly convex at midline, mesosome wider than long. Female SGP without submarginal furrow .............................. N. wardi Guimarães

Figures

FIGURES 8 – 15. Neopsittaconirumus kea 8, preantennal region, ventral; N. anodis 9, female ventral terminalia; 10 – 15, subgenital plate of female: 10, N. albus; 11, N. clayae; 12, N. albidus; 13, N. lybartota; 14, N. strepsiceros; 15, N. africanus. (Figure 10 was made from type specimen held at the Bishop Museum—BBM­NG 29316; figures 11 and 13, were made from the type specimens held at the NHML—B. M. 1969 ­ 101 and B. M. 1952 ­ 143; other figures are adapted from Guimarães, 1974).

FIGURES 1 – 6. Neopsittaconirmus vendulae n. sp. 1, male; 2, male dorsal terminalia; 3 – 4, male genitalia, dorsal view (3), ventral view (4); 5, female; 6, female ventral terminalia. (Figures were made from the type specimens held at the NHML—B. M. 1969 ­ 101).

FIGURES 16 – 25. Neopsittaconirumus clayae 16, male dorsal terminalia; 17 – 18 detail of abdominal segment IX of male: 17, N. borgiolii; 18, N. albidus; 19 – 20 penian complex: 19, N. clayae; 20, N. andrettae; 21 – 25 male genitalia: 21, N. borgiolii; 22, N. hoogstraali; 23, N. pallipes; 24, N. inexpectatus; 25, N. abnormis. M = mesosome, P = parameres. (Figures 16, 17, 19, 21 and 24, were made from the type specimens held at the NHML—B. M. 1934 ­ 570, 13491 and 18547, other figures are adapted from Guimarães, 1974).