Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

ICHNEUMONIDAE: : Genus J


Diagnosis:

In the forewing the areolet is 'condensed', and the veins join up in one place.

Characteristics of Genus J 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 black; 5. Metasoma not compressed; 6. Size of ocelli small; 7. Length of antennae shorter than body; 8. Length of ovipositor long and thin 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 (viewed laterally) variable; 14. Shape of T1 (viewed laterally) evenly curved; 15. Number of teeth in mandibles 2; 16. Metasoma same colour throughout; 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, widening behind spiracle (gradually to strongly); 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, BP, CL, GB, WN. South Island: NN, SD, BR, MC, DN, CO, OL, FD, SI.

Species in NZ

Seven undescribed species of this unnamed genus discovered by ID Gauld in 1999.

Biology & hosts

Nothing is known about the biology of this genus, but it predominantly occurs in native forested habitats.

Sources of information

NZAC records

Citation

Ward DF & Schnitzler FR. 2013. Ichneumonidae of New Zealand. Genus J http://ichneumonidae.landcareresearch.co.nz
Accessed: 15 October 2019

Revised

v1.0. Ward DF & Schnitzler FR. 2013