Annotated checklist of insects associated with Garry oak in British ...

7
Key to Insect Orders
The key applies principally to the adult siages of the common groups in the checklist.
I.
2. (I)
Three pairs of legs, or appearing legless;
body usually more than 2 mm long
Four pairs of legs;
body usually less than 1 111m long .
Sucking/piercing mouthparts
Biting/chewing mouthparts
2
Acarina: mites
3
7
3 (2) Mouthparts coiled; wings, ifpresenl,
with scaly pattern
Lepidoptera: moths & butterflies
Mouthparts beak·like; wings nol scaly, often clear 4
4.
(3)
Mouthparts slender and conspicuously jointed;
usually two pairs of wings
Mouthparts not obviously jointed
5
6
5.
(4)
Forewings usually divided into a leathery section
and a (clear) membranous section;
folded Oat at rest
Wings, if present, all of similar texture;
held roof-like at rest
Hemiptera: bugs
Homoptera: bugs
6.
(4)
One pair of wings .
Two pairs offringed wings~ soft slender insects
usually less than 2 mm long
Diptera: nies
Thysanoptera: thrips
7.
Hind legs enlarged for jum ping
Hind legs usually not enlarged for jumping
Onhoptera: grasshoppers
8
8. (7) Forewings shell·like or leathery;
rear wings, if present, membranous .
Wingless, or all wings of similar texture throughout
9
10
9. (8) Forcep-like appendages at rear of body;
insect Oat, dark brown ..
Body usually without conspicuous posterior
appendages ..
Dermaptera: earwigs
Coleoptera: beetles (in part)
j
10. (8)
Wingless, or apparently so
Obviously winged
11
14
II. (10)
Tiny, dark-colored, soft-bodied, gregarious insects,
usually less lhan J mm long, with very short
antennae; abdomen often with a spring-like
appendage underneath .
Otherwise, usually larger; no ventral "spring"
Collembola: springtails
12
12. (II) "Wasp-waisted"; antennae obviously
"elbowed" ........ ... ........
Hymenoptera (in part): ants
Thick-waisted; antennae variable 13