ICHNEUMONIDAE: : Genus I
Diagnosis:In the forewing the areolet is 'condensed', and the veins join up in one place.
Characteristics of Genus I include: 1. Body size <10mm; 2. Position of spiracle on T1 of metasoma clearly behind the centre; 3. Aerolet in forewing 'condensed'; 4. Colour of face variable; 5. Metasoma not distinctly compressed; 6. Size of ocelli small; 7. Length of antennae shorter than body; 8. Length of ovipositor long and distinct but not longer than body; 9. Wings present; 10. Colour of wings hyaline (clear); 11. Sternaulus absent; 12. Shape of face in lateral view flat or only weakly bulging; 13. Sternite on T1 variable in length; 14. Shape of T1 (viewed laterally):evenly curved; 15. Number of teeth in mandibles 2; 16. Metasoma usually the same colour throughout or bicoloured; 17. Length of T1 longer than T2; 18. Sculpture on mesoscutum finely pitted, many hairs; 19. Width of T1 (viewed dorsally) anterior part slender often parallel, strongly widening behind spiracle; 20. Glymma on T1 absent; 21. Sculpture on metasoma smooth with a glossy appearance (highly polished, no punctures); 22. Propodeum very short (not reaching beyond coxal insertion).
Distribution in NZ
North Island: ND, AK, CL, GB, HB, TK, TO. South Island: NN, BR, MC, CO, OL, SL.
Species in NZEight undescribed species of this unnamed genus discovered by ID Gauld in 1999.
Biology & hostsNothing is known about the biology of this genus. A large series of specimens were reared in association with the tree Pseudopanax simplex .
Sources of informationNZAC records
CitationWard DF & Schnitzler FR. 2013. Ichneumonidae of New Zealand. Genus I http://ichneumonidae.landcareresearch.co.nz
Accessed: 13 July 2020