Zatypota takayu, Matsumoto, Rikio & Takasuka, Keizo, 2010

Matsumoto, Rikio & Takasuka, Keizo, 2010, A revision of the genus Zatypota Förster of Japan, with descriptions of nine new species and notes on their hosts (Hymenoptera: Ichneumonidae: Pimplinae), Zootaxa 2522, pp. 1-43 : 3-4

Key to Japanese species of Zatypota

Note. The male of Z. takayu sp. nov. is unknown.

1. Female (with ovipositor projecting beyond the apex of metasoma)............................................................................ 2

-. Male (without ovipositor) .......................................................................................................................................... 13

2. Malar space short to moderately long, less than 0.8 x basal width of mandible, coriaceous between lower end of eye and base of mandible, never with deep groove ........................................................................................................... 3

-. Malar space very long, more than 1.0 x basal width of mandible, with deep groove between lower margin of eye and upper base of mandible ( Fig. 10 ); smaller species usually with fore wing 2.5 mm or less; parasitoid of Tulinyphia yunohamensis .................................................................................................... Zatypota sulcata Matsumoto , sp. nov.

3. Face with median longitudinal ridge ( Figs 2, 4, 11, 12 ) .............................................................................................. 4

-. Face without median longitudinal ridge ...................................................................................................................... 7

4. Occipital carina complete throughout, evenly rounded or somewhat pointed dorsomedially ..................................... 5

-. Occipital carina interrupted and dipped dorsomedially ( Fig. 17 ); parasitoid of Chrysso foliata .................................. ................................................................................................................. Zatypota chryssophaga Matsumoto, sp. nov.

5. Face slightly to weakly produced forwards ( Figs 2, 11 )............................................................................................... 6

-. Face very strongly produced forwards ( Figs 12, 13 ) ........................................ Zatypota yambar Matsumoto , sp. nov.

6. Postero-lateral oblque grooves of T4–5 furnished with minute but sharp and dense longitudinal ridges on them; face moderately produced forwards; parasitoid of Takayus chikunii ........................ Zatypota baragi Matsumoto , sp. nov.

-. Postero-lateral oblque grooves of T4–5 lacking longitudinal ridges on them; face slightly produced forwards; parasi- toid of Takayus takayensis .............................................................. Zatypota takayu Matsumoto & Takasuka, sp. nov.

7. Antenna moderately long, usually with 18 or more segments, about as long as fore wing; larger species usually with fore wing 3.0 mm or more [Small specimens of grachilipes have fore wing about 3.0 mm and short antenna; in this species legs are very slender and the second flageller segment 4.0 x as long as wide] .............................................. 8

-. Antenna short, with 14 or fewer segments, distinctly shorter than forewing; smaller species usually with fore wing 2.7 mm or less; second flageller segment about 2.0 x as long as wide; parasitoid of Anelosimus crassipes .................

..................................................................................................................... Zatypota brachycera Matsumoto, sp. nov. 8. Legs moderately stout, hind femur 6 x as long as wide or less; forewing with veins cu-a and Cu2 moderately to strongly oblique, the latter about as long as the abscissa of Cu between Cu1 and 1m-cu or shorter .......................... 9

-. Legs slender, hind femur 8– 9 x as long as wide; forewing with veins cu-a and Cu2 only slightly oblique, the latter longer than abscissa of Cu between Cu1 and 1m-cu ( Fig. 92 ) ....................... Zatypota grachilipes Uchida & Momoi

9. Ovipositor straight, more or less thickened medially ............................................................................................... 10

-. Ovipositor weakly upcurved apically, not thickened medially; parasitoid of Parasteatoda spp ................................... ............................................................................................................................................ Zatypota albicoxa (Walker)

10. Face and frons more or less marked with yellowish white; T1 and T2 not coriaceous [T1 weakly coriaceous in maculata , in this species inner orbit broadly yellowish white] ........................................................................................ 11

-. Face and frons entirely black; T1 and T2 distinctly coriaceous ( Fig. 118 ); parasitoid of Theridion pinastri ................ ....................................................................................................................................... Zatypota percontatoria Müller

11. Submetapleural carina of metapleuron straight without small projection at anterior end ( Figs 78, 79 ); dorsal and lateral face of propodeum and T1 not coriaceous ( Figs 114, 115 )................................................................................. 12

-. Submetapleural carina with small projection at anterior end ( Fig. 81 ); dorsal and lateral face of propodeum and T1 finely coriaceous ( Figs 81 , 117 ); parasitoid of Parasteatoda japonica .......................................................................... .................................................................................................... Zatypota maculata Matsumoto & Takasuka, sp. nov.

12. Second metasomal tergite 0.9 x as long as the posterior width; face and clypeus entirely white; parasitoid of Platnickina sterninotata .......................................................................................... Zatypota elegans Matsumoto, sp. nov.

-. Second metasomal tergite 0.6–0.75 x as long as the posterior width; at least part of face and upper half of clypeus blackish; parasitoid of Yunohamella subadulta ............................................. Zatypota dendrobia Matsumoto , sp. nov.

13. Face and clypeus entirely white.................................................................................................................................. 14

-. Face at least partly blackish ....................................................................................................................................... 15

14. Face weakly produced forwards, with weak median longitudinal carina; vertex long, gradually sloping down to occipital carina in lateral view; central rhombic area of T2 nearly as long as wide (cf. Fig. 121 ) ................................. ........................................................................................................................... Zatypota yambar Matsumoto, sp. nov.

-. Face flat, not produced forwards, without median longitudinal carina; vertex short, abruptly descending just in front of occipital carina; central rhombic area of T2 shorter than wide (cf. Fig. 115 ); parasitoid of Platnickina sterninotata Zatypota elegans Matsumoto, sp. nov.

15. Face and frons entirely blackish ................................................................................................................................ 16

-. Face and frons with whitish mark.............................................................................................................................. 17

16. Median rhombic area of T2–3 distinctly coriaceous (cf. Fig. 118 ); forewing with veins cu-a and Cu2 usually moderately oblique, the latter about as long as the abscissa of Cu between Cu1 and 1m-cu or shorter; parasitoid of Theridion pinastri .................................................................................................................. Zatypota percontatoria (Müller)

-. Median rhombic area of T2–3 smooth; forewing with veins cu-a and Cu2 usually only slightly oblique, the latter longer than abscissa of Cu between Cu1 and 1m-cu ( Fig. 92 ) ........................ Zatypota grachilipes Uchida & Momoi

17. Upper end of frontal orbital stripe extended back beyond ocelli; submetapleural carina with small projection at anterior end ( Fig. 81 ); parasitoid of Parasteatoda japonica ............. Zatypota maculata Matsumoto & Takasuka, sp. nov.

-. Upper end of frontal orbital stripe reaches top of eye at most, not extended back beyond ocelli; submetapleural carina of metapleuron straight, without projection anteriorly (cf. Fig. 77 )................................................................. 18

18. Antenna short, with 14 or fewer segments, distinctly shorter than fore wing; parasitoid of Anelosimus crassipes ....... .................................................................................................................... Zatypota brachycera Matsumoto , sp. nov.

- Antenna moderately long, with 17 or more segments, about as long as fore wing .................................................... 19

19. Malar space very long, 1.3 x basal width of mandible or more, with deep groove between lower margin of eye and upper end of mandible base (cf. Fig. 10 ); parasitoid of Tulinyphia yunohamensis ......................................................... ........................................................................................................................... Zatypota sulcata Matsumoto, sp. nov.

-. Malar space short, less than 1.0 x basal width of mandible, without groove ............................................................. 20

20. Occipital carina complete throughout, dorso-medially sometimes weak but never dipped (cf. Figs 14, 15, 18 ) … 21

-. Occipital carina interrupted and dipped mediodorsally (cf. Fig. 17 ); parasitoid of Chrysso foliata .............................. .................................................................................................................. Zatypota chyssophaga Matsumoto, sp. nov.

21. Face flat, without a median longitudinal ridge ........................................................................................................... 22

-. Face weakly produced forwards, with weak median longitudinal ridge; parasitoid of Takayus chikunii ...................... ............................................................................................................................ Zatypota baragi Matsumoto, sp. nov.

22. Yellowish white stripes on inner orbits broadened below antennal sockets and touching or almost touching each other, gradually tapered ventrally, making triangular median blackish area; cocoon with some small projections of silk mass on its surface; parasitoid of Yunohamella subadulta ...................... Zatypota dendrobia Matsumoto, sp. nov.

-. Yellowish white stripes on inner orbits narrow, at most broadened just below antennal sockets and abruptly narrowed ventrally, so median blackish area rectangular; cocoon without projections of silk mass on its surface; parasitoid of Parasteatoda spp ........................................................................................................ Zatypota albicoxa Walker

Figures

FIGURES 1 – 13. Scanning electon micrography of head of Zatypota spp. (female) in anterior view (1 – 12) and lateral aspect (13). 1, Z. albicoxa; 2, Z. baragi (paratype); 3, Z. brachycera (paratype); 4, Z. chryssophaga (paratype); 5, Z. dendrobia (paratype); 6, Z. elegans (paratype); 7, Z. grachilipes; 8, Z. maculata (paratype); 9, Z. percontatoria; 10, Z. sulcata (paratype); 11, Z. takayu (paratype); 12, Z. yambar (paratype); 13, Z. yambar (paratype). Scale bar = 0.1 mm.

FIGURES 14 – 25. Scanning electron micrography of head of Zatypota spp. (female) in posterior view. 14, Z. albicoxa; 15, Z. baragi (paratype); 16, Z. brachycera (paratype); 17, Z. chryssophaga (paratype); 18, Z. dendrobia (paratype); 19, Z. elegans (paratype); 20, Z. grachilipes; 21, Z. maculata (paratype); 22, Z. percontatoria; 23, Z. sulcata (paratype); 24, Z. takayu (paratype); 25, Z. yambar (paratype). Scale bar = 0.1 mm.

FIGURES 86 – 97. Fore wings of of Zatypota spp (female). 86, Z. albicoxa; 87, Z. baragi (paratype); 88, Z. brachycera (paratype); 89, Z. chryssophaga (paratype); 90, Z. dendrobia (paratype); 91, Z. elegans (paratype); 92, Z. grachilipes; 93, Z. maculata (paratype); 94, Z. percontatoria; 95, Z. sulcata (paratype); 96, Z. takayu (paratype); 97, Z. yambar (paratype). Scale bar = 0.5 mm.

FIGURES 110 – 121. Scanning electron micrography of first and second metasomal tergite of Zatypota spp (female). 110, Z. albicoxa; 111, Z. baragi (paratype); 112, Z. brachycera (paratype); 113, Z. chryssophaga (paratype); 114, Z. dendrobia (paratype); 115, Z. elegans (paratype); 116, Z. grachilipes; 117, Z. maculata (paratype); 118, Z. percontatoria; 119, Z. sulcata (paratype); 120, Z. takayu (paratype); 121, Z. yambar (paratype). Scale bar = 0.1 mm.

FIGURES 74 – 85. Scanning electron micrography of propodeum and metapleuron of Zatypota spp (female) in lateral view. 74, Z. albicoxa; 75, Z. baragi (paratype); 76, Z. brachycera (paratype); 77, Z. chryssophaga (paratype); 78, Z. dendrobia (paratype); 79, Z. elegans (paratype); 80, Z. grachilipes; 81, Z. maculata (paratype); 82, Z. percontatoria; 83, Z. sulcata (paratype); 84, Z. takayu (paratype); 85, Z. yambar (paratype). Scale bar = 0.1 mm.