A contribution toward a knowledge of the aquatic and semi-aquatic Hemiptera of Virginia

421 Pages·018.595 MB·English

by  Bobb, Marvin Lester

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A CONTRIBUTION TOWARD A KNOWLEDGE OF THE AQUATIC
AMD S M -AQUATIC HBMIPTSRA OF VIRGINIA
By
Marvin Lester Bot>bg B.S,» M.S.
. , ?h
I
W ^J r
A Dissertation Presented to the
Graduate Faculty of the University of Virginia
In Candidacy for the Degree of Doctor of Fhilosoph
1950
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.
UMI Number: DP15027
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UMI Microform DP15027
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GERRIS ' CANA-LICUIATUS SAY
(Female)
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Page
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I. Introduction . . . . . . . . .
II. Acknowledgments ........... 0 0 9 0 7
III. Materials and Methods . . . . •» o o o « 0
n • e
Material Studied . . . . . 8
Methods of Collecting . . » 0 « 9 o * a « c o 9
Field Notes . . . . . . . . . . 11
Methods of Preservation IB
Methods of Rearing ........... • 14
IV. Physiographic Provinces . . . . . . 17
Geographic Distribution of Species 19
V. Koology . . . . . . . 23
Lotic Situations « 0 9 0 o e e o e o o o a e 23
Creeks......... .. 23
Mountain brooks .
e c o o o o o o
Trout streams 0 * 0 0 0 * 0 0 9 9 O tP- rU‘i
Minnow streams 0 0 0 0 0 9 <g4
Sand-bottoiaed streams . . . 24
Silt-bottomed streams . . .. 25
Dark-vrater streams . . . . 26
Rivers 9 9 0 0 0 0 9 0 0 26
Large creeks and rivers 26
Lenitio Situations .. ... . * • « o e 27
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Fage
Lakes and Ponds . . . . . . . . . . . .... .. 27
Temporary ponds . . . . . . . . . . . . 27
Fluctuating permanent ponds ......... . 27
Non-fluctuating permanent ponds . . . . 28
Swamp pools and ponds . . . . . . . . . 29
Rock quarries ........... 29
Roadside Ditches and Canals . . . . . . . . . 29
Ditches and. canals . . . . . . . . . . . 29
Marshes . . . . . . . . . . . ............. 31
Pools of salt m a r s h e s ............ . . . 31
Gawgrass marshes . . . . . . ........... 31
Zoological Distribution of Virginia Species . . . 32
VI. Keys to Suborders arid Families of Aquatic and Demi-
aquatic Heraiptera . . . . . . . . . . . . . . . . . . 36
VII. Annotated List of Species (with keys to Genera and
species) . . . . . . . . . . . . . .............. .. 40
Family 1. - Gelaatoeoridae ........... 40
Crelaatocoria ooulatua . . . . . . . . 41
Gelastocoris variegatus- . . . . . . . 46
Family 2. - Ochterldae . . . . . . . . . ......... 47
Oohterus banks1 . . . . . . . . . . . 48
Ochterus amerlcanus ........... 71
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Page
Family 3. - Saldidaa 72
Pantaoora 1teata . . . . . . . . . . . 75
pentaoora sphaoelata ......... ■ . 77
Pentaoora al&aoretl . . . . . . . . . 78
Pantaeora h i r t a ........... 79
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I Saldula major .......................... 81
Saldula pall.lpea . . . . . . . . . . . 82
| Saldula oonfluanta. ............ 85
Saldula aaltatoria . . . . . . . . . . 86
| Hloraoaathia htmills ........... 88
' Saiaoida aioaaoni . . . . . . . . . . 91
Family 4. - Hebrida© . . . . . . . . . . . . . . . 92
Hebrus bursae 1 at eri ........... . . . . 94
Hebrus oonclnnua....................... 36
Hebrua buenol . . . . . . . ......... 98
Merragata hebroldes . . . . . . . . . 101
Herr&gata brtmnea . . . . . . . . . . 101
Family 5. - Hydrometridtie ........... 102
Hydrosaetra martini ................ 103
Hydrometra australis . . . . . . . . . 107
Family 6. - Meaovelida . . . . . . . . . . . . . . 109
Meaovella mulaantl bisIgnata ......... H O
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