2. Larvae active; body extended; abdominal prolegs present 
Larvae less active; no abdominal prolegs; body curved .... 
3. In the shucks of pecans, hickories, and walnuts and in 
ACOLMS +e Lepidoptera, Blastobasidae, Olethreutidae 
TRC ONCS Bes oars 8 SON) a lat Tt Lepidoptera, Phycitidae 
In fruits of wild cranberries and blueberries... 
Lepidoptera, Phycitidae 
4. In acorns, walnuts, chestnuts, hickory nuts, and filberts.... 
imnvlesuminouseseeds: 2. 228 Coleoptera, Bruchidae 
COMES) ee ek ere aA) ee cole lien 1 wae en ree 
5. First abdominal spiracle vestigal; body spindle-shaped 
Hymenoptera, Cynipidae 
First abdominal spiracle normal; body curved like a 
closed ingen tee! Coleoptera, Curculionidae 
6. Cones abnormal and dropping prematurely 
Coleoptera, Scolytidae 
Cones maturing; damage to seeds alone 
Warvaevlegless: ....5.2..c hadi... Hymenoptera, Chalcididae 
Larvae with true legs ............000... Coleoptera, Anobiidae 
B. Insects Attacking Seedlings and Small Reproduction 
a 
Plants cut off near ground line or stems lacerated and 
GINTIVClCO shee orn Fo, meet Named ree ee eke 
Plants wilting or fading, easily plucked from ground be- 
cause of severed stem or roots below ground... | 
Gall-like swellings Onethe Stems. Oe es Oe eae 
Bark gnawed in patches along the stem of conifers... | 
Foliage off-color, yellowish or rusty, and often covered 
with very fine cobweb-like threads or matting 
Tetranychididae 
Roots showing small cottony or globular objects at time of 
CRANSMIAMCINO 210 Fee cae Homoptera, Aphididae 
Leaves or cotyledons cut off and carried away; Southern 
SENECA aRe  oT Hymenoptera, Formicidae 
Other types of damage. See Division II. 
8. Small, tender plants: 
Small, maggotlike larvae causing injury 
Diptera, Muscidae 
Large, smooth, dark-colored caterpillars present 
Lepidoptera, Phalaenidae 
Larger plants, hardwoods, with woody part tunneled: 
Tunnels longitudinal ................. Coleoptera, Cerambycidae 
Tunnels across the grain, wood stained 
Coleoptera, Scolytidae 
Tunnels irregular, chiefly underground .................. lsoptera 
9. Curved, grublike larvae in the soil 
Coleoptera, Scarabaeidae 
Elongate, cylindrical, hard-shelled larvae 
Coleoptera, Elateridae 
Small, molelike tunnels usually near the surface of the 
SOU ee .. Orthoptera, Gryllotalpinae 
10 
Jit 
31 
