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Volume 57—1977

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TINGOIDEA OF OKLAHOMA (HEMIPTERA)

W. A. Drew and Don C. Arnold

Department of Entomology, Oklahoma State University, Stillwater, Oklahoma

Keys, distribution, and plant hosts are presented for the 20 species of the families Piesmidae and Tingidae that occur or are likely to occur in Oklahoma.

INTRODUCTION

The species of the superfamily Tingoidea are often overlooked owing to their small size and the tendency to stay on the underside of leaves. Often the first indication of their presence is made known by the result of their feeding on the leaves of plants. Various of the species are recognized plant pests in various parts of the world. Here in Oklahoma we have, among other species, the following common named pests: Corythucha arcuata (Say) — oak lace bug, Corythucha ciliata (Say) — sycamore lace bug, Corythucha cydoniae (Fitch) — hawthorn lace bug, Corythucha marmorata (Uhler) — chrysanthemum lace bug, Corythucha ulmi O & D. — elm lace bug, and Gargaphia solani Heid. — eggplant lace bug. Besides their being pests, the reticulations and markings of various of the lace bugs make them interesting.

The host plant information, unless otherwise indicated, is from Drake and Ruhoff (1). For information regarding synonomy one should also see that reference. In general, the tingids overwinter as adults. The eggs are laid on the leaves of the host plants. There may be two or more generations a year.

County distribution of some species are not given. In these cases, the species has not been collected in Oklahoma but has a distribution such that it likely occurs here.

KEY TO THE SPECIES

1. Ocelli absent; pronotum produced posteriorly (Tingidae) 2
Ocelli present; pronotum not produced posteriorly (Piesmidae) Piesma cinerea
2. Hood (prothoracic covering of head) present 8
Hood absent 3
3. Pronotum unicarinate 4
Pronotum with three carinae 6
4. Costal margin of elytra flatened and reflexed Leptoypha elliptica
Costal margin not flattened; narrow and deflexed 5
5. 3rd segment of antennae nearly four times as long as the 1st segment Leptoypha mutica
3rd segment of antennae less than three times the length of the first Leptoypha ilicis
6. Head with 3-5 distinct spines Teleonemia nigrina
Head without spines 7
7. Third segment of antennae with basal fourth or more black Atheas mimeticus
Third segment with extreme base only black Atheas austroriparius
8. Lateral carinae of pronotum not reaching the hood 13
Lateral carinae of pronotum reaching the hood 9
9. Median groove of sterna (the groove in which the beak may be found) not interrupted by a transverse carina 11
Median groove of sterna interrupted by a transverse carina 10
10. Segment one of antennae dull yellow Gargaphia tiliae
Segment one of antennae black Gargaphia solani
11. Costal area of hemelytra broadly curving out at middle Leptodictya plana
Costal area of hemelytra nearly parallel at middle 12
12. Costal area with a premedian black cross-bar Leptopharsa clitoriae
Costal area without a premedian cross-bar Leptopharsa heidemanni
13. Pronotal hood nearly 3 times as high as median carina; paranota with a large, dark brown blotch on outer half Corythucha cydoniae

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Pronotal hood not more than 2 times as high as median carina 14
14. 1st segment of antennae twice or slightly more than twice the length of segment 2 15
1st segment of antennae 3 or almost 3 times the length of the 2nd segment 17
15. Hemelytra whitish, only brown marking a spot on each tumid elevation on hemelytra Corythucha ciliata
Hemelytra with more extensive brown markings 16
16. Body entirely black Corythucha juglandis
Body with posternal margins, humeral area and last abdominal segment brownish Corythucha pergandei
17. Globose portion of hood less than twice as broad as triangular portion at the constriction Corythucha marmorata
Globose portion of hood twice or more as broad as the triangular portion at the constriction 18
18. No apical cross-bar on hemelytra Corythucha ulmi
Apical cross-bar present, but may be ill-defined 19
19. Apical cross-bar weak, ill defined Corythucha arcuata
Apical cross-bar distinct, well defined Corythucha aesculi

Atheas austroriparius Heidemann 1909.
    Distribution: Ellis Co. (May-Aug.).
    Host Plants: Desmodium, Schrankia.

Atheas mimeticus Heidemann 1909.
    Distribution: Garvin Co. (June).
    Host Plants: Desmodium, Petalostemon.

Corythucha aesculi Osborn and Drake 1916.
    Distribution: McCurtain Co. (June).
    Host Plants: Aesculus.

Corythucha arcuata (Say) 1832.
    Distribution: Adair, Comanche, Pawnee, Payne, and McCurtain Counties (April-August).
    Host Plants: Quercus, Castanea, Pyrus, Acer, Rosa.

Corythucha ciliata (Say) 1832.
    Distribution: Choctaw, Delaware, Hughes, McCurtain, LeFlore, Oklahoma, Osage, Payne, and Sequoyah Counties (Feb.-Sept.).
    Host Plants: Platanus, Broussonetia, Carya, Chamaedaphne, Fraxinus.

Corythucha cydoniae (Fitch) 1861.
    Distribution: Adair, Choctaw, McCurtain, Muskogee, Oklahoma, Ottawa, Payne, and Tulsa Counties (April-October).
    Host Plants: Amelanchier, Cephalanthus, Chaenomeles, Cotoneaster, Crataegus, Pyracantha, Pyrus, Malus, Quercus.

Corythucha juglandis (Fitch) 1857.
    Host Plants: Amelanchier, Carya, Juglans, Rubus, Sorbus, Tilia.

Corythucha marmorata (Uhler) 1878.
    Distribution: Delaware, Dewey, Ellis, Hughes, Okmulgee, Major, McCurtain, Murray, Payne, Pottawatomie, and Sequoyah Counties (May-September).
    Host Plants: Ambrosia, Aster, Chrysanthemum, Echinops, Helianthus, Rudbeckia, Solidago, Tanacetum.

Corythucha pergandei Heidemann 1906.
    Distribution: LeFlore County (June).
    Host Plants: Alnus, Betula, Celtis, Corylus, Prunus, Pyrus, Ulmus.

Corythucha ulmi Osborn and Drake 1916.
    Distribution: Carter, Oklahoma, Noble, and Payne Counties (July-September).
    Host Plants: Ulmus.

Gargaphia solani Heidemann 1914.
    Distribution: Canadian, Cherokee, Mayes, Muskogee, Noble, Okfuskee, Payne, Wagoner, and Washington Counties (Jan.-Dec.).
    Host Plants: Amphiachyrus, Cassia, Gossypium, Lycopersicum, Salvia, Solanum, Hollyhock.

Gargaphia tiliae (Walsh) 1864.
    Host Plants: Cercis, Prunus, Tilia.

Leptodictya plana Heidemann 1913.
    Distribution: LeFlore County (July).
    Host Plants: Gramineae.

Leptopharsa clitoriae (Heidemann) 1911.
    Host Plants: Clitoria, Meibomia, Lespedeza, Lappula, Alnus.

Leptopharsa heidemanni (Osborn and Drake) 1916.

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    Distribution: LeFlore County (June).
    Host Plants: Baptisia.

Letoypha elliptica McAtee 1917.
    Host Plants: Ilex.

Leptoypha ilicis Drake 1919.
    Host Plants: Ilex, Vaccinium.

Leptoypha mutica (Say) 1832.
    Distribution: Carter and Payne Counties (September).
    Host Plants: Adelia, Chionanthus, Fraxinus.

Teleonemia nigrina (Champion) 1898.
    Distribution: Creek, Garvin, Major, Murray, and Payne Counties. (May-November).
    Host Plants: Adeonstegia, Eriogonum, Helenium, Plantago, Rhus, Sphaeralcea, Verbena, sugarbeets, snapdragons.

Piesma cinerea (Say)
    Distribution: Caddo, Garfield, Major, Payne and Sequoyah Counties (Feb.-Sept.).
    Host Plants: Amaranthus.

REFERENCES

1.   C. J. DRAKE and F. A. RUHOFF, Bull. U. S. Nat. Mus. 243:1-634 (1965).