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Geometrid Moths - Undersides or Ventral Views

Subject: mini-guide for quick cross referencing
Here is a collection of some examples of ventral images that are already identified, for comparison purposes. This may be important in other families, but particularly in the Geometrids that often pose with the wings held vertically.
These images may be hard to find, when browsing through all of the dorsal shots in the guide.
I will try to list as many as I can, here on this page. I'm mainly looking for clear images that show both sides of the subject. (multiple-linked images) Thanks for your help!
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Note, some images on this page may not be all-inclusive, if there is a large variance of types or forms or genders, at the species level. Some species may not be identifiable from a ventral view only.
(This is not finished.) Check the edit date, at the bottom of this section or the comments below that.
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Family - Geometridae: (ventral views organized by subfamily and tribe)

Subfamily - Archiearinae:
Tribe -
Archiearis infans


Subfamily - Ennominae:
Tribe - Alsophilini:
Alsophila pometaria


Tribe - Anagogini:
Cepphis armataria - - - Cepphis decoloraria - Metanema inatomaria - Metarranthis angularia - Metarranthis duaria - Metarranthis homuraria - Metarranthis hypochraria - Metarranthis indeclinata - Metarranthis obfirmaria - Plagodis alcoolaria - - Plagodis kuetzingi
- - - - - - - - - - - - - - - - - - -

Plagodis phlogosaria - - Plagodis serinaria - - - - Probole amicaria - - - Selenia alciphearia - - - - Selenia kentaria
- - - -

Tribe - Angeronini:
Aspitates aberrata - - - Aspitates forbesi - - - - Euchlaena amoenaria - Euchlaena irraria - - Euchlaena johnsonaria - Euchlaena madusaria - Euchlaena marginaria - Euchlaena obtusaria - - Lytrosis unitaria - - - - Xanthotype sp.
- - - - - - - - -

Tribe - Azelinini:
Pero ancetaria - - - - - - - Pero flavisaria - - - - - Pero honestaria - - - - - Pero meskaria - - - - Pero morrisonaria - - - - - Pero mizon - - - - - - Pero occidentalis - - - Pero radiosaria - - - Stenaspilatodes antidiscaria
- - - - - - - -

Tribe - Baptini:
Lomographa glomeraria - Lomographa semiclarata - Lomographa vestaliata
- - - - - -

Tribe - Bistonini:
Biston betularia - - - - - - Erannis tiliaria - - Hypagyrtis unipunctata - - Lycia ursaria - - - - - Paleacrita vernata - - Phigalia denticulata - - Phigalia plumogeraria - - Phigalia strigataria - - Phigalia titea
- - - - - - - -

Tribe - Boarmiini:
Anavitrinella pampinaria - Dasyfidonia avuncularia - - Epimecis hortaria - - Iridopsis defectaria - - - Iridopsis ephyraria - - Iridopsis perfectaria - Neoalcis californiaria - Protoboarmia porcelaria - Stenoporpia anastomosaria
- - - - - - - - - - -

Tribe - Caberini:
Cabera erythemaria - - Cabera variolaria - - Chloraspilates bicoloraria - Drepanulatrix foeminaria - Episemasia cervinaria - - Erastria coloraria - - - Erastria cruentaria - - - Erastria decrepitaria - - Ilexia intractata - Sericosema immaculata - Sericosema juturnaria
- - - - - - - - - - - - - - -

Tribe - Campaeini:
Campaea perlata


Tribe - Cassymini:
Nematocampa resistaria - Protitame virginalis - Taeniogramma octolineata - Taeniogramma tenebrosata
- - - - - - - - -

Tribe - Ennomini:
Ennomos alniaria - - - Ennomos magnaria - - - Ennomos subsignaria
- -

Tribe - Epirranthini:
Spodolepis substriataria


Tribe - Lithinini:
Gueneria similaria - - Thallophaga hyperborea
-

Tribe - Macariini:
Digrammia colorata - Digrammia curvata - Digrammia delectata - Digrammia denticulata - Digrammia excurvata - Digrammia gnophosaria - Digrammia imparilata - Digrammia mellistrigata - Digrammia nubiculata - Digrammia ocellinata - Digrammia pictipennata
- - - - - - - - - - - - - - - - - - - - -

Digrammia rippertaria - Digrammia setonana - Digrammia subminiata - Epelis truncataria - - Eumacaria madopata - Fernaldella fimetaria - Fernaldella stalachtaria - Macaria aemulataria - Macaria aequiferaria - - Macaria bicolorata - - Macaria bisignata
- - - - - - - - - - - - -

Macaria distribuaria - - - Macaria minorata - - - Macaria multilineata - - Macaria notata - - - - - Macaria oweni - - - - Macaria promiscuata - - Macaria signaria - - - - Macaria transitaria - - Mellilla xanthometata - Psamatodes abydata - Rindgea flaviterminata
- - - - - - - - - -

Rindgea hypaethrata - Rindgea nigricomma - Rindgea prolificata - - Rindgea subterminata - Speranza argillacearia - Speranza austrinata - - Speranza bitactata - - Speranza brunneata - - Speranza colata - - - Speranza coortaria - - Speranza graphidaria
- - - - - - - - - -

Speranza marcescaria - Speranza pustularia - - Speranza ribearia - - - Speranza inextricata - - Macaria occiduaria
- - - -

Tribe - Melanolophiini:
Eufidonia discospilata - Eufidonia notataria - Melanolophia canadaria - Melanolophia imitata - Melanolophia signataria
- - - -

Tribe - Nacophorini:
Ceratonyx satanaria - - Phaeoura quernaria
-

Tribe - Ourapterygini:
Antepione thisoaria - - - Besma quercivoraria - Caripeta aequaliaria - - Caripeta divisata - - - - Caripeta piniata - - - Caripeta triangulata - - - Cingilia catenaria - - - Enypia packardata - Eriplatymetra coloradaria - Eriplatymetra grotearia - Eucaterva variaria
- - - - - - - - - - - -

Eugonobapta nivosaria - Eusarca confusaria - - Eusarca galbanaria - - Eutrapela clemataria - Lambdina fiscellaria - Lambdina pellucidaria - Lychnosea helveolaria - Lychnosea intermicata - Neoterpes edwardsata - Neoterpes ephelidaria - Neoterpes trianguliferata
- - - - - - - - - - -

Nepheloleuca sp. - - - Nepytia phantasmaria - Nepytia semiclusaria - - - Oxydia vesulia - - - - Patalene olyzonaria - - Philtraea monillata - Philtraea paucimacula - Plataea trilinearia - Prochoerodes lineola - Sabulodes aegrotata - - Sabulodes spoliata
- - - - - - - - - -

Sicya macularia - - - - - Sicya morsicaria - - - - Tetracis cachexiata - - Tetracis cervinaria - - - Tetracis crocallata - - - Tetracis pallulata
- - - - -

Tribe - Palyadini:
Phrygionis paradoxata - Phrygionis privignaria
-

Tribe - Sphacelodini:
Sphacelodes vulneraria


Subfamily - Geometrinae - Emeralds:
Tribe - Hemitheini:
Chlorochlamys chloroleucaria - Chloropteryx tepperaria - Hemithea aestivaria
- - - - - - - - - -

Tribe - Nemoriini:
Chlorosea banksaria - Dichorda iridaria - - - Dichorda rectaria - - - - Nemoria bistriaria - - - Nemoria darwiniata - - Nemoria festaria - - - Nemoria intensaria - - - -Nemoria leptalea - - - Nemoria lixaria - - - - Nemoria mimosaria - Nemoria rubrifrontaria - - Nemoria unitaria
- - - - - - - - - - -

Tribe - Synchlorini:
Synchlora aerata - - - - Synchlora frondaria
-


Subfamily - Larentiinae:
Tribe - Asthenini:
Hydrelia albifera - Trichodezia albovittata - Trichodezia californiata - Venusia duodecemlineata
- - - - - - - -

Tribe - Chesiadini:
Carsia sororiata


Tribe - Cidariini:
Ecliptopera atricolorata - Ecliptopera silaceata
- - - - -

Tribe - Eudulini:
Eubaphe mendica


Tribe - Eupitheciini:
Eupithecia miserulata - Eupithecia spermaphaga - Eupithecia ravocostaliata - Horisme intestinata - - Pasiphila rectangulata
- - - - - - - - -

Tribe - Hydriomenini:
Anticlea multiferata - - Anticlea vasiliata - - Archirhoe neomexicana - Ceratodalia gueneata - Coryphista meadii - - - Dysstroma citrata - - Dysstroma colvillei - - Dysstroma hersiliata - - - Eulithis diversilineata or gracilineata - - - Eulithis destinata - - - Eulithis explanata
- - - - - - - - - -

Eulithis molliculata - - - - Eulithis testata - - - - Eulithis xylina - - - - Eutrepsia inconstans - Hydriomena mississippiensis - Hydriomena pluviata - Hydriomena transfigurata - Mesoleuca gratulata - Perizoma custodiata - - Perizoma epictata - - - Plemyria georgii
- - - - - - - - - - - - - - - -

Rheumaptera hastata or subhastata - - - Spargania luctuata - - Thera juniperata - - - - - Triphosa haesitata
- - -

Tribe - Lobophorini:
Cladara atroliturata - Dyspteris abortivaria - Heterophleps triguttaria - Lobophora magnoliatoidata - Lobophora nivigerata
- - - - - -

Tribe - Operophterini:
Epirrita autumnata - Operophtera bruceata - Operophtera brumata
- -

Tribe - Stamnodini:
Heterusia atalantata - Stamnoctenis morrisata - Stamnoctenis pearsalli - Stamnodes affiliata - Stamnodes blackmorei - Stamnodes deceptiva - Stamnodes fervefactaria - Stamnodes formosata - Stamnodes franckata - Stamnodes gibbicostata - Stamnodes marmorata
- - - - - - - - - - - - - - - - - - -


Stamnodes modocata - Stamnodes reckseckeri - Stamnodes seiferti - Stamnodes tessellata - Stamnodes topazata - Stamnodes watsoni - (Stamnodes) affinis Stamnodes deceptiva
- - - - - -

Tribe - Xanthorhoini:
Costaconvexa centrostrigaria - Disclisioprocta stellata - Enchoria lacteata - - - Epirrhoe alternata - - - Epirrhoe plebeculata - - Euphyia intermediata - - Euphyia implicata - - Orthonama evansi - - Orthonama obstipata - Xanthorhoe abrasaria - Xanthorhoe columelloides
- - - - - - - - - - - - - - -

Xanthorhoe defensaria - Xanthorhoe ferrugata - Xanthorhoe lacustrata
- - - -

Subfamily - Sterrhinae:
Tribe - Cosymbiini:
Cyclophora pendulinaria - Pleuroprucha insulsaria
- - -

Tribe - Scopulini:
Leptostales pannaria - - Scopula ancellata - - - Scopula cacuminaria - - Scopula inductata - - Scopula sentinaria
- - - -

Tribe - Sterrhini:
Idaea dimidiata - - Idaea furciferata - - - Lobocleta peralbata - - Lobocleta plemyraria - - Paota fultaria
- - - -

Tribe - Timandrini:
Haematopis grataria


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End of list

Digrammia gnophosaria

Nice work!
Very impressive. I'll add some additional images here as I encounter them.

 
Thanks!
I felt the need for a comparison page, after placing several of the ventral-only images.

 
non-breaking spaces
Yes, very nice job!

It's a bit of work but you might want to consider arranging these on a grid. By adding non-breaking spaces, you can get the text on one row to line up with the images on the next row. The HTML code for a non-breaking space is "&_nbsp" (with underscore removed). You can see an example of this on the Eucosma genus page here. If you are interested in doing this and have question, let me know.

 
Thanks!
OK, I reorganized it with dashes, for now.

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