nS: 
Ih. 
20. 
21. 
22. 
23. 
24, 
25. 
26. 
21. 
28. 
29. 
30. 
Sie 
Maxillary articulating area large and distinct .................. 
Ninth abdominal segment operculate, terminal; body 
cylindrical, heavily chitinized 000.000.000.000... Rhipiceridae 
OdWAOEherwiSeles eee a ES 00 ee eae ei eas hae ee 
Prothorax enlarged and flattened, marked with a dis- 
tinct circular or oval area above and below; legs ves- 
Eiodalmore wanting) 0s... ee eae Ee ee Buprestidae 
Prothorax not specialized; legs well developed ....0............. 
Body fleshy; curved, inactive larvae feeding in fungi 
Cisidae 
Body digitate or active; predaceous forms or scav- 
CTU CNS epee reel trea Para cuit ah es 9 Oey <n CN es ane ET ee Te 
Ventral mouth parts retracted considerably behind a line 
between the ventral mandibular articulations ................. 
Ventral mouth parts not retracted; predaceous forms 
Cleridae 
Lacinia armed with spurs; body hairy ........ Dermestidae 
WACIMARWALHOULESDULS ie etme, reel ae Ser let ce 
Epicranial suture nearly absent 0... Ostomatidae 
Ventral mouth parts retracted considerably behind a 
line between the ventral mandibular articulations; 
molar or grinding structure of the mandible usually 
WOGESCMiGe meer eerie em erie rs Gu Ouy § sexe heme ree. ee eee OF 
Ventral mouth parts not retracted; larvae soft skinned, 
fleshy; wood borers; molar structure absent 
Cerambycidae 
Spiracles on tubular process; sap feeders 
Nitidulidae 
Spiracles not noticeably projecting 0. 
Free living predaceous forms crawling about on bark 
or foliage; 3 ocelli present on each side of head 
Coccinellidae 
Concealed forms under bark or in wood or fungi... 
Form very depressed, about twice as wide as thick; 
adapted to living between bark and wood; clypeus and 
EOMEROMLOMEA USEC. 8.0, kee @ emis abe sete cee) sealant, 
RormeMoresrobvust 0200 Soe. AG ee eee Be. 
Cardo not composed of 2 pieces; mala falciform; hypo- 
pharynx without a chitinization 0. Cucujidae 
Cardo of 2 pieces; mala obtuse; hypopharynx chiti- 
TN CG erent hel ec iuerrey tue alk eerie enh sy ean Eh eee ls a 
Fighth and ninth abdominal segments nearly equal; a 
single pit present between terminal spines; asperities 
on venter of 9th abdominal segment arranged in a 
brokenmanchiwe: ss lar 2aet ah) oxi bens Salpingidae 
Eighth abdominal segment at least twice as long as 9th 
(terminal spines excluded) ; a pair of pits present be- 
EWE ers Dlleciamet tke putty re. aii dade Cas aaa See Be 
Ninth abdominal segment with asperities on venter ar- 
raneed in aginele arch 0.0) (ee) ee Pyrochroidae 
Mandibles with a reduced, smooth molar structure, 
somewhat resembling the mandibles of the Ceramby- 
CICACH ee Ae tay ma eare en cia ri ote tee! Way Melandryidae 
Mandibles with normal molar structure 00... 
19 
20 
21 
22 
23 
25 
26 
27 
28 
31 
29 
30 
