Physotarsus Townes, 1966

Reshchikov, Alexey & Sääksjärvi, Ilari Eerikki, 2015, Seven new species of the genus Physotarsus Townes 1966 (Hymenoptera, Ichneumonidae) from South America, Zootaxa 3972 (1) : -

Key to species of Physotarsus Townes, 1966

(based on key by Zhaurova and Wharton 2009. For photographs of particular species described previously see the following web page, http://mx.speciesfile.org/projects/8/public/otu_group/show/194, Wharton 2007)

1 Fore wing weakly to strongly yellow or brown to black at base, with or without infumate areas apically ( Figs 1 , 16 )....... 2

- Fore wing hyaline at base (as in Figs. 4 , 9 , 12 , 17 , 20 )........................................................ 11

2(1) Fore wing evenly colored, entirely infumate/fuscous or pale yellow-brown....................................... 3

- Fore wing not evenly colored (as in Figs 1 , 16 ).............................................................. 5

3(2) Fore wing pale yellow brown......................................................... P. albus Zhaurova, 2009

- Fore wing from slightly brown till dark brown, entirely fuscous................................................ 4

4(3) Wings dark brown. Face distinctly punctate. Hind tarsi slander, first tarsomere 10 times as long as broad.............................................................................................. P. melipennis Zhaurova, 2009

- Wings slightly brown ( Fig. 26 ). Face rather finely and sparsely punctate ( Fig. 24 ). Hind tarsi stout, first tarsomere 5.5 times as long as broad ( Fig. 26 )............................................................ P. t u n c h i Reshchikov, sp.n.

5(2) Basal part of fore wing dark brown to black, apical part variable ( Fig. 1 )......................................... 6

- Basal part of fore wing yellow, apex infumate ( Fig. 16 )...................................................... 8

6(5) Mesosoma dorsally, excluding pronotum, orange; hind femora and tibiae orange ( Fig. 1 )............................. 7

- Mesosoma dorsally, excluding pronotum, dark brown to black. Hind femora and tibiae black.. P. varicornis ( Cameron, 1886)

7(6) Fore wing only with one hyaline stripe ( Fig. 1 ). Body entirely yellow ( Figs 1–3 ), apical part of hind tibiae and tarsi entirely brown, flagellum black and apical flagellomeres yellow. Hind tibiae 6.5 times as long as wide ( Fig. 1 )..................................................................................... P. iquitos Reshchikov and Sääksjärvi sp. n.

- Fore wing with two hyaline stripes. Body with black coloration of mesopleuron and metasoma, hind tibiae and tarsi entirely yellow, antennae yellow entirely without bright yellow apical flagellomeres each. Hind tibiae 6 times as long as wide.................................................................................. P. maculipennis (Cresson, 1874)

8(5) Mesosoma with yellow and black markings ( Fig. 16 ). Face quite densely punctate medially ( Fig. 15 )................... 9

- Mesosoma entirely yellow to light orange ( Figs 4 , 12 , 17 , 20 ), face very lightly but evenly punctate ( Figs 5 , 14 , 18 , 21 ).. 10

9(8) Malar space longer then basal mandible width ( Fig. 15 ). Scape, flagellum and hind legs entirely black, temple yellow, first metasomal tergite whitish yellow ( Figs 15, 16 ).............................. P. polleti Reshchikov and Sääksjärvi sp.n.

- Malar space shorter then basal mandible width. Scape, flagellum and hind legs with yellow coloration, first metasomal tergite black........................................................................ P. flavipennis Zhaurova, 2009

10(8) Frons and first tarsomere of hind leg orange................................................ P. adriani Gauld, 1997

- Frons and first tarsomere of hind leg black................................................ P. castilloi Gauld, 1997

11(1) Epicnemial carina strongly turning towards anterior margin of mesopleuron, reaching it or nearly so................... 12

- Epicnemial carina largely parallels anterior margin of mesopleuron............................................. 19

12(11) First metasomal tergite with apical third white, otherwise largely dark brown; ocellar field entirely black ( Figs 9, 10 )...................................................................................... P. oculatus Zhaurova, 2009

- First metasomal tergite either uniformly colored or dark apically, at most with narrow white apical margin; ocellar field vari- able, entirely black in some species, not in others ( Figs 12 , 20 )................................................. 13

13(12) First metasomal tergite entirely yellow, orange, or light brown, color even ( Fig. 20 )................................ 14

- First metasomal tergite partly to entirely dark brown......................................................... 17

14(13) First metasomal tergite 2.3–2.7 times as long as broad apically................................................ 15

- First metasomal tergite 1.2 times as long as broad apically................................................... 16

15(14) Head, metasoma, hind tibiae and tarsi yellow red ( Figs 20–23 )............. P. tampobata Reshchikov and Sääksjärvi sp.n.

- Metasoma, apical part of hind tibiae and hind tarsi entirely black............................ P. jamesi Zhaurova, 2009

16(14) Maximal length of temple equal transverse eye diameter. Malar space 1.3 times as basal mandible width ( Fig. 14 ). Metasoma mostly, hind coxae and femorae entirely, hind tibiae (excluding apical part) yellow, apical part of hind tibiae and hind tarsi dark ( Fig. 13 )........................................................ P. orellanensis Reshchikov and Sääksjärvi sp.n.

- Maximal length of temple 0.8 times transverse eye diameter. Malar space 0.8 times as basal mandible width. Metasoma, hind coxae and femorae mostly, hind tibiae and tarsi entirely dark.................................. P. eliethi Gauld, 1997

17(13) Propodeum brown, at least on anterior half.............................................. P. niveus Zhaurova, 2009

- Propodeum entirely orange............................................................................. 18 18(17) Clypeus yellow orange; hind femora dark brown.................................. P. leucohypopygus Zhaurova, 2009 - Clypeus white; hind femora yellow orange............................................ P. glabellus Zhaurova, 2009 19(11) Ventral clypeal margin with a prominent angulate central lobe ( Fig. 5 ).......................................... 20 - Ventral clypeal margin with a prominent angulate central lobe ( Fig. 18 )......................................... 21 20(19) Body entirely yellow orange without brown or black markings................................ P. bonillai Gauld, 1997 - Mesoscutum and/or face, head dorsally with dark brown markings ( Figs 4–6 )..................................... 21 20(19) Face ( Fig. 5 ) and propodeum entirely yellow ( Fig. 8 )................... P. mishanensis Reshchikov and Sääksjärvi sp.n. - Middle part of face and anterior half of the propodeum brown to black...................... P. claviger Zhaurova, 2009 22(19) Mesosoma entirely yellow to orange..................................................................... 23 - Color of mesosoma variable, but at least partly black........................................................ 25 23(22) Petiole dark brown.............................................................. P. glabellus Zhaurova, 2009 - Petiole either pale yellow or dark orange................................................................. 24 24 (23) Petiole pale yellow; antennae abruptly changing from pale to dark subapically................. P. lu t e u s Zhaurova, 2009 - Petiole dark orange; antennae mostly dark throughout, without abrupt color change............. P. jamesi Zhaurova, 2009 25(22) Face quite strongly protruding medially ( Fig. 18 ).......................................................... 25 - Face not to very weakly protruding medially............................................................... 30 26(25) Mesoscutum largely impunctate posteriorly, very sparsely punctate anteriorly.................... gineus Zhaurova, 2009 - Mesoscutum densely and distinctly punctate ( Fig. 19 )....................................................... 27 27(26) Mesoscutum black with anterolateral margin pale yellow, fore and mid femorae partially black.... P. tonicus Zhaurova, 2009 - Mesoscutum black with anterolateral margin and most or all of parapsidal lines pale to dark yellow ( Fig. 19 ); fore and mid

Figures

FIGURES 1 – 3. Paratype female (1, 3) and paratype male (2) Physotarsus iquitos Reshchikov and Sääksjärvi sp. n. 1) habitus; 2) male genitalia; 3) face.

FIGURES 15, 16. Holotype female Physotarsus polleti Reshchikov and Sääksjärvi sp. n. 15) face; 16) habitus.

FIGURES 4 – 8. Paratype male Physotarsus mishanensis Reshchikov and Sääksjärvi sp. nov. 4) habitus; 5) face; 6) head, dorsal view; 7) male genitalia; 8) propodeum.

FIGURES 9 – 11. Male of Physotarsus oculatus Zhaurova, 2009. 9) habitus; 10) face; 11) male genitalia.

FIGURES 12 – 14. Holotype male Physotarsus orellanensis Reshchikov and Sääksjärvi sp. n. 12) habitus; 13) male genitalia; 14) face.

FIGURES 17 – 19. Holotype female. Physotarsus saltilloensis Reshchikov sp. n. 17) habitus, lateral view; 18) face; 19) habitus, dorsal view, punctuation of mesonotum.

FIGURES 20 – 23. Holotype female Physotarsus tampobata Reshchikov and Sääksjärvi sp. n. 20) habitus; 21) ovipositor; 22) face; 23) male genitalia.

FIGURES 24 – 26. Holotype male Physotarsus tunchi Reshchikov sp. n. 24) habitus; 25) face; 26) male genitalia.