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 To start the research is better to firstly select the Database page 

                     Please select the definition more corresponding to the sample in examination.

 

1 pair of wings

--------------------------------- Ephemeroptera Diptera Strepsiptera

2 pairs of wings

hard forewings---------------- Hemiptera  Coleoptera  Orthoptera  Dictyoptera      membranous wings -------- Thysanoptera Lepidoptera Ephemeroptera Plecoptera Odonata Neuroptera  Trichoptera  Raphidioptera  Hymenoptera Psocoptera Hemiptera The wings are very useful for identifying the insects

1 pair of wings

 

Abdomen with 2 or 3  long caudal filaments,membranous wings, many cross-veins : Ephemeroptera (also with 2 pairs of wings

Abomen  without appendages (cerci) The forewings are reduced to small structure as balancers (alteres), the hindwings are wide and membranous Strepsiptera Extremely rare The hindwings are reduced to balance (halteres), some species are very common in the Baltic amber Diptera

2 pairs of wings - forewings are thickened

 

Forewings divided into two part, the first is thickened, the apex part is membraous, all have a tube like proboscid :Hemiptera Heteroptera

Forewings thickened but uniform webbing  Foreings without veins that are combined on the median line: Coleoptera Wings with numerous veins, the wings are covered in part on the median line   Insects with sucker proboscid: Hemiptera Homoptera Insects with posterior legs adapted to the jump, abdomen with cerci: Orthoptera Insects with long antennas, abdomen with cerci, very spiny legs: Dictyoptera

2 Pairs of membranous wings 

 

Small insects , two pairs of wings characterized by  a finge of hairs: Thysanoptera

Insects with  two pairs of scaly wings, curled sucker proboscis: Lepidoptera

Transparent or hairy wings

Reticulated wings with many cross-sectional veins Forewings lager, abdomen with caudal filaments Abdomen with 2 or 3 filaments Ephemeroptera (also with a single pair of wings) Hind wings larger, abdomen with 2 cerci: Plecoptera (also without filaments) equal sized wings, abomen  without appendages (cerci) Stretched and slender body, big eyes, wings have many cross veins: Odonata Hind wings larger, the venation  have a ladder like structure Plecoptera (with or without filaments)         Complex venation with tendency to branch out towards the border of the wing: Neuroptera         Wings covered by thin hair with relatively few cross veins: Trichoptera      Membranous wings with a wrinkled texture and faint veins: Isoptera   Elongated protothorax: Raphidioptera (extremely rare in Baltic amber)      Forewing with few cross veins and larger then the  hindwings  Characteristic  restriction between  the thorax and  abdomen: Hymenoptera   Very small insects,big and bulging eyes to the sides of the head: Psocoptera           Insects with sucker proboscid: Hemiptera