Dusky-blue Groundstreak
Calycopis isobeon (Butler & H. Druce, 1872)
Family: Lycaenidae
Subfamily: Theclinae
Identification: Two tails on the hindwing. Underside of both wings gray-brown; inner edge of postmedian line bordered narrowly with red-orange. Underside of hindwing has eyespot at lower apex with equal amounts of orange and black.
Wing Span: 7/8 - 1 1/4 inches (2.2 - 3.2 cm).
Life History: Eggs are laid in leaf litter on the ground. Caterpillars eat dead leaves and fruits, and detritus.
Flight: Many flights from January-September in Texas and Mexico.
Caterpillar Hosts: Dead leaves and fruits, and detritus, especially under trees in the cashew family (Anacardiaceae).
Adult Food: Flower nectar.
Habitat: Subtropical valley bottoms and lowland forest edges.
Range: Venezuela north through Central America and Mexico to central and South Texas. Strays into Mississippi and Kansas.
Conservation: Not usually required.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
Comments: NULL
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Verified Sightings
Displaying 1 - 24 of 173 verified sightings
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/img_0740-a.jpg?itok=Q5VfX2_S)
Observation date: Jun 12, 2024
Submitted by: Charlie Doggett
Region: Costa Rica
Verified by: Charlie Doggett
Verified date: Jun 29, 2024
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/_bf17285.jpg?itok=kgXjRhVJ)
Observation date: Feb 25, 2023
Submitted by: bonfrey
Region: Hidalgo County, Texas, United States
Verified by: jwileyrains
Verified date: Feb 11, 2024
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/calycopis_isobeon_2_04.ix_.23_l-9071.jpg?itok=ChbPvo-5)
Observation date: Sep 04, 2023
Submitted by: David Hilmy
Region: Stann Creek District, Belize
Verified by: Paul Prappas
Verified date: Dec 12, 2023
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/img_1609.jpeg?itok=aVOx5ZG5)
Observation date: Jan 21, 2023
Submitted by: ezeemonee
Region: La Libertad, El Salvador
Verified by: Paul Prappas
Verified date: May 23, 2023
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/img_1935.jpeg?itok=ysL900-a)
Observation date: Feb 04, 2023
Submitted by: ezeemonee
Region: El Salvador
Verified by: Paul Prappas
Verified date: May 15, 2023
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/dsc02217-enhanced-nr.jpg?itok=keRMad2S)
Observation date: Apr 28, 2023
Submitted by: polylepis
Region: Galveston County, Texas, United States
Verified by: jwileyrains
Verified date: Apr 30, 2023
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/calycopis_isobeon_2019feb20.jpg?itok=S366r3BP)
Observation date: Feb 20, 2019
Submitted by: David F Smith
Region: Sinaloa, Mexico
Verified by: jwileyrains
Verified date: Feb 26, 2023
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/p1320291.jpg?itok=4L-acphd)
Observation date: Nov 08, 2022
Submitted by: Robert Gorman
Region: Hidalgo County, Texas, United States
Verified by: jwileyrains
Verified date: Nov 22, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/dusky-blue_groundstreak_img_1644.jpg?itok=FOaj2WAm)
Observation date: Aug 22, 2017
Submitted by: ncrosbyrd
Region: Panama
Verified by: Paul Prappas
Verified date: Oct 12, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/fields_groundstreak_calycopis_drusilla_best_bfly_chiapas_mx_754.jpg?itok=zthTNfFU)
Observation date: Jul 12, 2017
Submitted by: ncrosbyrd
Region: Chiapas, Mexico
Verified by: Paul Prappas
Verified date: Oct 11, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/duskyblue_groundstreak_calycopis_isobeon_bfly_chiapas_mx_2739.jpg?itok=_-N7SNCm)
Observation date: Jul 18, 2017
Submitted by: ncrosbyrd
Region: Chiapas, Mexico
Verified by: Paul Prappas
Verified date: Oct 11, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/img_5989_dusky-blue_groundstreak_2.jpg?itok=v0mqdzvL)
Observation date: Feb 20, 2022
Submitted by: NCnaturegirl
Region: Fort Bend County, Texas, United States
Verified by: jwileyrains
Verified date: Aug 22, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/dd126308-0f9f-49ce-a693-cf6ec6da56d4.jpeg?itok=KHCVAznI)
Observation date: Feb 10, 2022
Submitted by: BeckyP388
Region: Texas, McLennan County, United States
Verified by: jwileyrains
Verified date: Aug 22, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/2726_0.jpg?itok=-6L64UYB)
Observation date: Mar 12, 2015
Submitted by: tom murray
Region: Puntarenas, Costa Rica
Verified by: Charlie Doggett
Verified date: Aug 03, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/img_2280-a.jpg?itok=sk2lJ-CK)
Observation date: Jun 30, 2022
Submitted by: Charlie Doggett
Region: Costa Rica
Verified by: Charlie Doggett
Verified date: Jun 30, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/origo-groundstreak.jpg?itok=XcxiGMat)
Observation date: Jan 17, 2020
Submitted by: Paul Prappas
Region: Heredia, Costa Rica
Verified by: Charlie Doggett
Verified date: Jun 27, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/dusky-blue-ground-streak.jpeg?itok=oi_BdEj_)
Observation date: Oct 01, 2021
Submitted by: Paul Prappas
Region: Costa Rica
Verified by: Charlie Doggett
Verified date: Jun 22, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/pxl_20220224_002257751_1.jpg?itok=IG2gBKhp)
Observation date: Feb 22, 2022
Submitted by: Barjones78
Region: Aransas County, Texas, United States
Verified by: stomlins701
Verified date: Mar 26, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/dusky_blue_groundstreak_0.jpg?itok=rZJQWff9)
Observation date: Jan 17, 2022
Submitted by: guy_incognito
Region: Hidalgo County, Texas, United States
Verified by: stomlins701
Verified date: Feb 13, 2022
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/dusky-blue_groundstreak_2_c.jpg?itok=e4bMc8ip)
Observation date: Nov 03, 2021
Submitted by: wallap74
Region: Vermilion Parish, Louisiana, United States
Verified by: CA Ivy
Verified date: Nov 05, 2021
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/groundstreak_dusky-blue_bamona.jpg?itok=OQl83VBT)
Observation date: Oct 24, 2014
Submitted by: Wanda Smith
Region: Texas, San Jacinto County, United States
Verified by: stomlins701
Verified date: Oct 09, 2021
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/img_1538_5.jpg?itok=O5sztV-h)
Observation date: Apr 10, 2021
Submitted by: Brynne Bryan
Region: Denton County, Texas, United States
Verified by: stomlins701
Verified date: Apr 12, 2021
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/groundstreak_dusky-blue_u_texas_rgv_3-2-20_6.jpg?itok=bgFNZ64W)
Observation date: Mar 02, 2020
Submitted by: heinert
Region: Cameron County, Texas, United States
Verified by: stomlins701
Verified date: Feb 09, 2021
![](https://www.butterfliesandmoths.org/sites/default/files/styles/bamona_scale_and_crop_640px_by_640px/public/bamona_images/img_4290_6.jpg?itok=oKJ4rB2X)
Observation date: Jul 10, 2019
Submitted by: whbauer
Region: Comal County, Texas, United States
Verified by: stomlins701
Verified date: Feb 05, 2020
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