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For educational purposes only; do not review, quote or abstract:--

A Public Service on the basics of Insect Identification

 

 

Keys to Families of Ichneumonoidea

(Derived primarily fr. Gauld & Bolton 1988)

(Email Contacts)

 

[Please refer to <Guide> for illustrations]

 

2

1a.  Fully winged

 

5

1b.  Wingless or short-winged

 

3

2a.  Hind wing with obvious, pigmented venation

 

4

2b.  Hind wing without apparent venation, except at times along proximal anterior margin

 

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3a.  Hind wing with cross vein rs-m meeting Rs after that vein diverges from Sc+R+Rs  and forewing with a single discosubmarginal cell; cross vein 2m-cu usually present ............  Ichneumonidae   <Habits>; <Adults-1> & <Adults-2> & <Adults-3>; & <Juveniles>

 

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3b.  Hind wing with cross vein rs-m meeting Sc+R+Rs before Rs diverges, or if at or slightly after junction then forewing with first discoidal and submarginal cells separated by a vein (Rs+M); cross vein 2m-cu always absent .......... Braconidae   <Habits>; <Adults-1> & <Adults-2> & <Adults-3>

 

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4a.  Fore wing with a single discosubmarginal cell; forewing usually with cross vein 2m-cu traceable at least as an impressed line; gaster tergites 2 & 3 usually separated by an obvious suture across their entire width ............   Ichneumonidae   <Habits>; <Adults-1> & <Adults-2> & <Adults-3>; & <Juveniles>

 

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4b.  Fore wing often with first discoidal and submarginal cells separated by a vein (Rs+M); forewing never with cross vein 2m-cu present; gaster tergites 2 & 3 fused immovably, the suture between them at most only traceable laterally ............ Braconidae   <Habits>; <Adults-1> & <Adults-2> & <Adults-3>

 

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5a.  Head with mouthparts rounded (= hypoclypeal depression), or with mandibles outcurved and somewhat spatulate .......... Braconidae   <Habits>; <Adults-1> & <Adults-2> & <Adults-3>

 

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5b.  Head with unspecialized mouthparts ......... Ichneumonidae   <Habits>; <Adults-1> & <Adults-2> & <Adults-3>; & <Juveniles>

 

NOTE:  For separation from other groups refer to <Extended Detail>