27 de junio de 2020

Afrotropical Butterflies & other neat things found online

For those of you who refer to William's Afrotropical Butterflies, he's recently uploaded a slew of new pdfs covering many genera.

They can be found here: http://metamorphosis.org.za/?p=articles&s=Results&page=0

I also encourage you to check out @shirdipam 's awesome butterfly photography website. Her photos of African species can be found here: https://pamsbutterflies.com/region/3/africa

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17 de junio de 2020

Identification Guide : Eurytela dryope

CLICK THE IMAGE TO SEE IT AT FULL RESOLUTION

Note that the angle in ssp. angulata's yellow FW band is often less pronounced than in the example given.

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24 de mayo de 2020

Identification Guide : Commonly Confused Belenois

The 3 Belenois species gidica, aurota, & creona are among the most common butterflies on the continent of Africa and yet are also among the most commonly misidentified butterflies on iNaturalist. This is due to their superficial similarity and the variability expressed in their wing patterns.

Hopefully this colour-coded guide will help you pin-point the key basic features of each species.

CLICK THE IMAGE TO SEE IT AT FULL RESOLUTION

If anyone needs a more detailed explanation of defining features, please ask in the comments below.

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08 de octubre de 2019

Tom the Maverick (?)

Well it looks like I'm sitting at over 40! maverick identifications at the moment... either I'm a rebel or there's a lot of easily misidentified African butterflies out there.

Anyone care to help?
See: https://www.inaturalist.org/identifications?user_id=cabintom&category=maverick

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26 de junio de 2019

Identification Guide: Eurema of the Terias subgenus




Note that the sex brand is only a feature in males of certain species.


Click on the following to enlarge.





Helpful scientific resources:



Note that the specimens chosen to illustrate these species in Williams 2019 (" Afrotropical Butterflies and Skippers - A Digital Encyclopaedia") are not always accurate.

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16 de junio de 2019

Identification Guide: Byblia anvatara

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14 de junio de 2019

Identification Guide: Zizeeria, Zizina, Zizula, Spot the Difference

(sorry for the pun)

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Identification Guide: Easily Confused Spialia in Central Africa

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Identification Guide: The Phalanta of mainland Africa

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05 de mayo de 2019

Identification Guide: Hypolimnas misippus / Danaus chrysippus Mimicry Ring

Females of Hypolimnas misippus are excellent mimics of the aposematic Danaus chrysippus, even so far as mimicking the latter's various forms/subspecies. At first glance, it can be quite difficult to differentiate the model from the mimic, but with a bit of close study a number of differences can be noted, many subtle, others more significant.

Key Differences

  1. Dorsal Forewing, white apical markings: In Hypolimnas misippus these tend to be wider and form a continuous band. Furthermore, H. misippus has, at the very apex of the FW, a small but noticeable white patch that is absent in D. chrysippus.
  2. Dorsal Forewing, costa (leading edge): In Hypolimnas misippus the FW costa is heavily black, with black invading the cell for most of it's length down towards the base. In Danaus chrysippus, the costal margin is black, but very little black crosses into the cell.
  3. Dorsal Hindwing, spots: Hypolimnas misippus's hindwing features a single spot located at the costa. Danaus chrysippus's hindwing features 3 spots situated along the end of the cell. In males, a fourth spot (formed of androconial scales) is also present.
  4. Ventral surface, margin: Also visible, sometimes to a lesser extent, on the dorsal surface, there is a marked difference in the marginal pattern between the two species. In D. chrysippus the margin features a single row of spots, while in H. misippus the margin is 2 rows deep.
  5. Ventral Hindwing spots: Unlike on the dorsal surface, Hypolimnas misippus's ventral hindwing features 2 spots, one at the costa, and one at the base of space 5. Danaus chrysippus's pattern of spots remains unchanged.
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