Glendora Natural History Website Data Compiled by Dick Swinney
Image used for spacing

Dragonflies And Damselflies

of Glendora



by

Dick Swinney

copyright July 1993

Revised September 2007



All odanatans collected by Dick Swinney

Identification by Rosser W. Garrison, Phd, unless otherwise stated

determined while Entomologist, Office of Agricultural Commissioner,

County of Los Angeles





ORDER ODONATA: DRAGONFLIES and DAMSELFLIES



SUBORDER ZYGOPTERA: DAMSELFLIES



Family Lestidae: Spread-winged Damselflies



1. Archilestes californica California Spread-wing

Rare, 2 on 11/7/92 in BDC, MG, over stream; 8 on 11/17/1993 in BDC, at BDCC, over stream, females laying eggs; 1 on 11/19/1993 in BDC, at BDCC, over stream; 2 on 12/4/07, in BDC at FCT, over stream
1 on 8/29/07 in BDDB near water


2. Archilestes grandis Grand Spread-wing

Rare, 1 on 8/31/1988 at BDDB, near water; 1 on 8/29/1992 at BDDB, near water; 4 on 8/1/1992 at BDDB, near water



Family Coenagrionidae: Narrow-winged Damselflies



1. Argia lugens Sooty Dancer

Rare, 3 on 8/29/1988 at BDDB, near water; 1 on 8/22/2006 at LDDB, near water

2. Argia hinei Lavender Dancer

Rare, 1 on 7/21/1988 by Nathan Nichols in BDC at FCT, over stream; 3 on 8/29/1988 at BDDB, near water

3. Argia vivida Vivid Dancer

Abundant, 1988-2006, Jan.,March,May-Sep., Nov., Dec., in wide variety of habitats

4. Enallagma cyathigerum Northern Bluet

determined by Author

Rare, 1 on 8/22/2006 at BDDB, near water

5. Enallagma boreale Boreal Bluet

determined by author

Rare, 2 on 8/29/1992 at BDDB, near water; 6 on 8/22/2006 at BDDB, near water

6. Enallagma praevarum Arroyo Bluet

Rare, 1 on 8/26/1992 at BDDB, near water; 2 on 8/29/1992 at BDDB, near water; 1 on 8/22/2006 at LDDB, near water

7. Enallagma carunculatum Tule Bluet

Rare, 3 on 8/29/1992 at BDDB, near water; 1 on 9/1/1992 at BDDB, near water; 1 on 4/24/1993 in BDC at FCT, near stream; 1 on 9/9/1995 at BDDB, near water

8. Enallagma civile Familiar Bluet

Rare, 1 on 9/5/1988 at BDDB, near water; 1 on 8/29/1992 at BDDB, near water; 1 on 7/26/1993 at BDDB, near water; 3 on 5/31/2002 at BDD, over water

9. Ischnura barberi Desert Forktail

Rare, 7 on 7/21/2006 at LDDB, near stream; 3 on 9/21/2006 at BDDB, near water

10. Ischnura cervula Pacific Forktail

Fairly Common in debris basins, 1992-2002, May,June, Aug., at BDDB, near water

11. Ischnura denticollis Black-fronted Forktail

Abundant in debris basins, 1988-2006, May, July-Sep., Dec., near water

12. Telebasis salva Desert Firetail

Common in debris basins, 1988-2006, Aug., Sep., over shallow water



SUBORDER ANISOPTERA: DRAGONFLIES



Family Aeshnidae: Darners



1. Anax junius Common Green Darner

Abundant, 1986-2007, May-Sep., Nov., wide variety of habitats

2. Anax walsinghami Giant Darner

determined by author

Rare, 1 on 7/20/2006 at BDDB, over stream

3. Aeshna multicolor Blue-eyed Darner

Abundant, 1995-2006, June-Sep., Nov. ( June data from Rick Clements), mostly near water

4. Aeshna walkeri Walker’s Darner

Uncommon, 1 on 11/7/1992 in BDC, MG, over stream; 2 on 11/13/1992 in BDC, MG, over stream; 1 on 11/17/1992 in BDC, MG, over stream; 1 on 5/25/1993 by Mario Rago at 1606 Heather Dr., LaVerne; 2 on 11/17/1993 in BDC, MG, over stream; 1 on 7/3/2006 at BDDB, over water; 1 on 7/15/2006 at LDDB, over water



Family Gomphidae: Clubtails



1. Erpetogomphus lampropeltis Serpent Ringtail

lampropeltis

Accidental, 1 on 8/11/1986 at jnct. of W. & N. forks of San Gabriel Cnyns., over stream

2. Progomphus borealis Gray Sanddragon

determined by author

Rare, 7 on 7/13-24/2006 at LDDB on damp soil at waters edge



Family Cordulegastridae: Spiketails



1. Cordulegaster dorsalis

dorsalis Pacific Spiketail (Yellow-backed Biddie)

Uncommon, 1 on 6/27/1988 in BDC, FCT, over stream; 1 on 8/27/1988 at BDC, over stream; 1 on 8/13/1992 in BDC, MG, over stream; 1 on 8/14/1993 in BDC, FCT, over stream; 1 on 8/19/1993 in BDC, FCT, over stream; 1 on 8/23/1993 in BDC, FCT, over stream; 1 on 8/25/1993 in BDC, FCT, over stream; several observed during early summer of 2006 in BDC, MG, over stream



Family Libellulidae: Common Skimmers



1. Sympetrum corruptum Variegated Meadow Hawk

Uncommon, 1 on 10/11/1968, in Glendora foothills; 1 on 6/28/1988 at BDDB, near shallow water; 1 on 8/3/1992 in BDC, FCT, over stream; 9/1/1992 at BDDB, near water, 5/17/1993 at 200 meters S. of GMR on Colby Trail; 1 on 7/15/2006 at LDDB, near water

2. Sympetrum illotum Cardinal Meadow hawk

Common, 1988- 2006, May-Sep., in wide variety of habitats

3. Erythemis collocata Western Pondhawk

Common at debris basins, 1988-2006, July-Sep., over shallow water

4. Pachydiplax longipennis Blue Dasher

Rare, 1 in Aug., 1991 at N. Vermont; 1 on 8/3/1992 in BDC, FCT, over shallow stream; 1 on 7/20/06 at BDDB, over water

5. Plathemis lydia Common Whitetail

Rare, 1 on 8/29/1992 at BDDB, over shallow pond

6. Libellula croceipennis Neon Skimmer

Uncommon, 1 on 9/1/1992 at BDDB, over stream; 1 on 7/30/1993 in BDC, FCT, over stream; 1 on 8/19/1993 at BDC, FCT, over water; 1 on 8/20/1993, over stream; 2 in Aug., 1994 in BDC, FCT, over stream; 1 on 12/11/2006 at BDDB, over shallow stream

7. Libellula saturata Flame Skimmer

Abundant near water, 1986-2006, July,Aug.

8. Paltothemis linestipes Red Rock Skimmer

Abundant over streams, especially in debris basins, 1986-2006, May, July-Sep.

9. Brechmoroga mendax Pale-faced Clubskimmer

determined by author

Rare, 4 on July 1-20, 2006 in LDDB & BDDB, over stream; 4 on 8/22/2006, at BDDB, over stream

10. Tramea lacerata Black Saddlebags

Uncommon, 2 on 8/12/1993 at LDDB, over pond; 20 on July 12- Aug. 20, 2006 in LDDB & BDDB, over water

11. Tramea onusta Red Saddlebags

Rare, 1 on 8/29/1992 at BDDB, at water’s edge; 1 on 7/20/2006 at BDDB, over water; 1 on 7/24/2006 at LDDB, over water

12. Pantala hymenaea Spot-winged Glider

Rare, variety of habitats, away from water, open fields, parks, ridge tops in SH, occurs periodically in migrations, usually with P. flavescens, 1 on 7/25/1997 at SHWA, near ridge top; 6 on July 3-18 at SHWA, ridge tops

13. Pantala flavescens Wandering Glider (Globe Trotter)

Uncommon, variety of habitats, away from water, open fields, parks, ridge tops throughout the city, 1 on 9/28/1991 at 617 N. Vermont Ave., species present for nearly 1 mo. throughout the city, many observed; 2 on 7/25/1997 at SHWA, mtwy near ridge top; 9 on Aug. 3-18, 2006 at SHWA, along mtwy. near ridge top; several observed in various locations within the city during Aug.-Sep., 2007



Note: Erpetogomphus lampropeltis lampropeltis was collected outside of Glendora’s City limits. A single specimen was collected at the junction of West and North Forks of the San Gabriel River on 8/11/1986 by Dick Swinney.

This specimen is referenced on page 225 in the publication “Tijdschrift Voor Entomologie”, Volume 137, 1994. The article is titled “A Revision Of The New World Genus Erpetogomphus Hagen In Selys (Odonata: Gomphidae)” by Rosser W. Garrison, Los Angeles County Agricultural Commissioner’s Office, U.S.A.



E. lampropeltis lampropeltis and Libellula croceipennis represent the only specimens of these 2 species recorded for L.A. Co. according to Dr. Garrison. Rosser later collected specimens of L. croceipennis in BDC.



* Species deposited in the personal collection of Rosser Garrison - March 1993

All other specimens are retained in Dick Swinney’s private collection.



Recommended References:

Tim Manolis. Dragonflies and Damselflies of California, Univ. of California Press, 2003

Kathy Biggs. Common Dragonflies of California - A Beginner’s Pocket Guide, Azalea Creek Publishing, 2000