LIBRARY

HEMIPTERA
ANATOMICAL CHARACTERS-Continued
External
CIDlE); membranous; strong or
fragile; often with simple and reduced
venation; fore pair largest and sometimes
thickened and pigmented; with
couplings; folded flat or roof-like over
back.
Spiracles - usually a pair on each
thoracic segment or a pair on each of
the pro- and metathoracic segments.
Abdomen - distinctly or indistinctly segmented,
number of segments variable up
to nine, 10, or 11; sounding organs present
at base in most male cicadas; tubercles,
honey tubes, and wax glands present
in specialized groups; Pygiditem
specialized in some families and valuable
in separating species. Sex organs generally
well developed and conspicuous in
CICADIDJE, ovipositor common.
Spiracles - few or absent on abdomen
in some female coccids; seven pairs in
most families.
Internal
CLASSIFICATION OF THE HOMOPTERA
(Includes the important families only)
A. Series AUCHENORRHYNCHA Dumeril1806
I. Superfamily FULGOROIDEA Kirkaldy 1907
L Family TETTIGOMETRIDlE
2. " FULGORIDLE
3. DICTYOPHORIDLE
4. DELPHACIDLE
II. Superfamily CICADOIDEA Ashmead 1904
9. Family CICADIDlE
5. Family CIXIIDiE
6. .. FLATID.lE
7. " ISSIDfE
8. .. RICANIIDlE
14. Family CICADELLlDJE
10. " MEMBRACIDJ.E
15. " GYPONlDlE
11. " MACHlEROTIDJE 16. " BYTHOSCOPIDlE
12. CERCOPIDJE 17. .. JASSlDlE
13. " JETHALIONIDlE
B. Series HYMENELYTRA Latreille 1825 (PHYTOPHTHlRES Burmeister 1835)
III. Superfamily CHERMOIDEA New Combination
18. Family CHERMIDJE (PSYLLIDlE) 19. Family LIVIIDlE
IV. Superfamily ALEYRODOIDEA Handlirsch 1903
ZOo Family ALEYRODIDlE
V. Superfamily APHIDOIDEA (Latreille 1802) Handlirsch 1903
21. Family ADELGIDJE (CHERMESIDJE) 23. Family ERIOSOMATIDJE
22. " PHYLLOXERID)E 24. " APHlDIDlE
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