File:Desmia funeralis – Grape Leaffolder Moth (14747446051).jpg
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DescriptionDesmia funeralis – Grape Leaffolder Moth (14747446051).jpg |
Mothing Night 7/25/14. Here's what I wrote about this moth: I don't believe the coincidence! I spent at least two hours today going over photos of Desmia funeralis and Desmia maculalis from May and June. I have no idea what prompted this. GUESS WHAT SHOWED UP TONIGHT. A DEFINITE Desmia funeralis. And do you know HOW I know it is funeralis and not maculalis? TOTAL KISMET. As I was studying Desmia funeralis and Desmia maculalis publicly on my FB page, the wise and wonderful Linda Phillips asked me how I knew the difference. Well, I wanted to make sure I was giving her accurate information, so I checked out what the Peterson field guide, MPG and BugGuide had to say on the matter. I discovered on BugGuide that you had to go to a lot more effort to tell them apart than I thought. I didn't know I had to get a dorsal photo to sex the moth, a ventral photo to show the markings on the abdomen and then an accurate measurement of wingspan! In the past, I'd only referred to the wisdom of the Peterson field guide, which made it sound so easy, writing that maculalis "...Resembles Grape Leaffolder [Desmia funeralis] but is smaller. HW often has a stepped white median band. Top of head is dusted with white scales." Well, BugGuide says different and that there's a lot more to it: From Brian Scholtens [on BugGuide]: "The character that I use is the extent of the white patch on the underside of the abdomen. D. funeralis individuals have a solid white patch on the underside of the abdomen on segments 1-5 (or may have a slight break on segment 3). D. maculalis individuals have a broken white patch, where about 1/2 of segments 3 and 4 are clearly dark. Basically, maculalis looks striped on the underside, whereas funeralis looks like it is basically solid white." There is considerable size overlap between male Desmia maculalis and female D. funeralis so it is necessary to sex the moth to be able to identify the species. Fortunately, sexing the 2 species is relatively easy. Males of D. funeralis and D. maculalis have a distinct notch or joint at about the mid-point of each antenna. The hindwing spot on the females of both species is pinched in the middle and on rare occasions may be divided into 2 smaller spots." So, here are the three shots - 1. dorsal (notice the notches on the antennae, so it is a male), 2. ventral (notice there is no broken white patch on the abdomen, so it is funeralis) and 3. WS is approximately 24mm! There! Desmia funeralis! Whew! |
Date | |
Source | Desmia funeralis – Grape Leaffolder Moth |
Author | Andy Reago & Chrissy McClarren |
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This image was originally posted to Flickr by Wildreturn at https://www.flickr.com/photos/80270393@N06/14747446051. It was reviewed on 8 August 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
8 August 2014
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current | 08:53, 8 August 2014 | 4,105 × 2,382 (2.56 MB) | Josve05a (talk | contribs) | Transferred from Flickr via Flickr2commons |
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D5100 |
Exposure time | 1/200 sec (0.005) |
F-number | f/22 |
ISO speed rating | 200 |
Date and time of data generation | 22:59, 25 July 2014 |
Lens focal length | 105 mm |
Orientation | Normal |
Software used | Ver.1.01 |
File change date and time | 22:59, 25 July 2014 |
Y and C positioning | Co-sited |
Exposure Program | Manual |
Exif version | 2.3 |
Date and time of digitizing | 22:59, 25 July 2014 |
Meaning of each component |
|
Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 4.3 APEX (f/4.44) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, strobe return light not detected, compulsory flash firing |
DateTime subseconds | 90 |
DateTimeOriginal subseconds | 90 |
DateTimeDigitized subseconds | 90 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 157 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.3.0.0 |