Aethiophysa invisalis (4877? 4878?)

Aethiophysa invisalis

Family Crambidae, subfamily Glaphyriinae

Photograph copyright by Tony Leukering

5 July 2012

Near Whitesboro

CMMP block S07

Distribution map or distribution map

In my experience and opinion, there are two primary aspects of insect identification that scare off hobbyists from becoming seriously interested. The first (not necessarily the most important) is the lack of widely accepted common or English names for most species, once one gets out of the butterflies, dragonflies and damselflies, tiger beetles, and orthopterans (grasshoppers, crickets, katydids) and even including these groups in much of the world outside northern Europe and the U. S. and Canada. The second reason is the uncertainty of identification in groups with incredible numbers of species, many or most of which are very similar to each other and a large portion of which require close study of minutiae and, particularly, structure of sex characters. As example, the Kaufman insect guide notes that there are some 870 species of syrphid flies (Syrphidae) and that that family accounts for only about 1/20 of the 17,000+ species of flies known from North America north of Mexico. Of course, that's "known," which does not necessarily mean that that is all there are; in fact, there are almost certainly hundreds, if not thousands, of species awaiting description or, even, finding.

But, of course, this is a blog about moths, so I'll get back to the subject "species." When I first noted the subject of this essay's picture at Steve Bauer's house near Whitesboro, I knew that I had not seen the species and figured it for one of the horde of crambids (there are lot of species with triangular wings and that perch head-down in two dimensions), most of which are not illustrated in the Beadle and Leckie field guide. I rummaged around among similar crambids on the Moth Photographer's Guide (MPG) and found two species that looked very much like this beast. Unfortunately, I could not find any particular feature that separated those two species. On the record of known occurrences, I figured that the first one (Aethiophysa invisalis 4877) was the more likely of the two species to occur in New Jersey (though neither had, apparently, been recorded here). So, I submitted the above picture to both MPG and to the Butterflies and Moths of North America (BAMONA) website as the first county and state record of that species. While there has been no action on the photo at Bug Guide, which is the portal for records addition to MPG, the picture was accepted as proof of occurrence by BAMONA. However, it was accepted as Aethiophysa lentiflualis, not as Aethiophysa invisalis.

That gave me pause. Since BAMONA does not apparently utilize Hodges numbers, I cannot compare Hodges numbers between the two sites. Also, since neither site explains the nomenclatural differences and because a brief internet search got me nowhere in discovering the causes of the differences, I do not know, really, what species to which this beast is referable and why MPG does not use lentiflualis and why BAMONA does not use either invisalis nor consimilis (the other species name on MPG). Apparently, the two sites are following different authorities, but if there had been a lumping, there should be some shared name, not completely different names. So, I have no real clue what has gone on with that genus; perhaps, someone will comment with the solution.

So, we come to the real gist of this essay: uncertainty. In the birding world, given reasonable views, virtually every individual bird can be identified by those with strong skills in that vein. Thus, birders take for granted that, though an individual birder may not be able to identify an individual bird, s/he is certain that someone can make the ID. In the insect world, that is just not the case, particularly without a specimen to study. That uncertainty leads to many enthusiasts giving up on various insect groups, including moths. But, as one might have expected from the fact that I have established this blog, I would encourage those with an interest to stick to it and accept the fact that you will have a higher percentage of unknown beasts (a very much higher percentage) than you would were you a birder with a relatively similar knowledge set. And, if you had given up on moths previously in your life, give it a second chance. We know a lot more, now, about distribution than we did even a decade ago, and there are more and more-comprehensive ID resources out there than, again, even a decade ago.

Catalpa Sphinx (7789)

Ceratomia catalpae

Family Sphingidae

Photograph copyright by Tony Leukering

7 July 2012

West Cape May

CMMP block X02

Distribution map

With a wingspan reaching 2.75 in. (95 mm), this subtle beauty is one of the largest sphinxes and one of the county's largest moth species. The very similar Waved Sphinx (7787) can be differentiated by subtle details of forewing pattern (particularly those of the sub-terminal [ST] line), but often/usually has the reniform spot filled by white or silver, rather than gray as in Catalpa.

The alternate focus of this essay is a bit of terminology, what is termed in moths as the "reniform spot." The literal translation of "reniform" is kidney-shaped, so it may come as a surprise to many that, in the mothing world, one often finds the seemingly redundant phrase, "Reniform... kidney shaped" (couplet 3 in Eupsilia key). That is because lepidopterists have co-opted the word to note the location of a spot that is often kidney-shaped, rather than using it for its true meaning (I suppose that some bounder could make the above say, "Reniform... reniform"). The reniform spot is just distal (in the sense of toward the end and, in this case, toward the end of the wing) of the median line and close (proximal) to the leading edge of the wing (see Fig. 4 in Beadle and Leckie). The Catalpa Sphinx has an oval reniform spot outlined in black.

The beast in the picture above was nearly the first moth that Mike Crewe saw in his moth trap on the morning of 7 July, probably because of its relative immensity. Once we got it out of the trap, we let it perch on a door jamb on the interior of the mudroom closet of his house to while away the time that we dealt with all of the lesser creatures. Most of the small moths will, given the opportunity, fly away once day comes, but the large species (perhaps because they're so obvious and so loved by avian predators) usually sit tight, counting on their camouflage. Upon getting a few record pictures of the Catalpa Sphinx, we took it outside in order to get "natural" pictures, putting it on the side of Mike's big side-yard stump. After a brief photo session, we took it to a shaded spot and let it go.

[Mike Crewe photographing the Catalpa Sphinx in his side yard. Photo by Tony Leukering]

Deadwood Borer (8514)

Scolecocampa liburna

Family Erebidae, subfamily Erebinae

Photograph copyright by Sam Galick

8 July 2012

Near Whitesboro

CMMP block S07

Distribution map

We return to the "massive assemblage" of moths in the superfamily Noctuoidea and to the large and varied family Erebidae, which occupies 38 plates in the Beadle and Leckie guide. Little is known of this species' habits and ecology, but it is suspected that the caterpillar eats fungus in decaying wood. Either Deadwood Borers are attracted only uncommonly to lights or the species is not at all common, as we have found only a few, with Sam's nice find very early this morning being the subject of this essay's photo.

One quick bit of minutiae to point out:  Don't go looking for Deadwood Borer (or Dead-wood Borer Moth; see previous comment about English nomenclature) in the index to Beadle and Leckie, at least not by the common name, as it is not indexed under any option ("Dead-wood," "Borer," or "Moth"). However, a search under the genus name will be successful. Long-and-involved indices of books usually have at least a few problems, but this is the first one that I've found in this book. I do, however, question the utility of the decision to index both the text and plate entries for every species, as they are on facing pages.

We are obviously getting into the peak of the moth season, because numbers and variety have climbed tremendously just in the past couple of weeks; I have two good examples to prove the point. The first is from this most recent night, a night that I should have found myself wandering over to Sam Galick's place (as I had on the two previous nights!). That is because Sam reports photographing some 80 or so species at his porch and black lights from dusk until the first Northern Cardinal sang near dawn.

The other example comes from Mike Crewe's moth trap. On the morning of 22 June 2012, I helped Mike go through the trap that he'd had out all the previous night, an the final tally of species from that haul is 91. I joined him again in this endeavor yesterday morning (7 July 2012). What Mike does is capture from the trap and release out the door any individuals of species that he can immediately ID, and retains all those individuals that he cannot. Obviously, the common species are the ones most readily ID'ed due to previous experience, but it was still more than surprising to me when the final tally just of Mottled Grass-veneers was 596, which outnumbered all other species combined! Me being the official scribe and tallier, at the end of the endeavor (which took quite a few hours to complete!), I tallied the number of species listed that he had released straight out of the trap: 68. So, combining that with the easily 40+ species that he photographed because he could not ID them, the final tally will certainly be well above 100. And that's from a relatively habitat-poor locations on Cape Island!

Suzuki's Promolactis (1047.1)

Promalactis suzukiella

Family Oecophoridae

Photograph copyright by Tony Leukering

5 July 2012

Near Whitesboro

CMMP block S07

Distribution map

While one might think that this stunning creature would be easy to note, it is actually amazingly easy to overlook. That is because the largest of Suzuki's Promolactis reaches a whopping 7 mm or so (just over 1/4 in)! The new Beadle and Leckie field guide illustrates two related, tiny, orange things in this family, but not this one, probably because it is known to occupy only a small portion of the range covered by that guide.

Despite the wonderfulness of this beast, the thrust of this essay is the Hodges numbers (here, 1047.1), about which many readers may have been wondering. The Hodges numbering system was published in 1983 that gave every species known from the U. S. and Canada (at that time) a number that could be used by all and sundry when cataloging moths. As one might expect in a group that we know so poorly, an incredible amount of new information gathered since 1983 has resulted in lumps, splits, and species additions to the area of concern. Suzuki's Promolactis is one of these, hence the decimal point in the number.

Adding species to the list (either through splitting of an existing taxon or discovering a taxon new to the area or, even, to science) is not that painful. One simply puts a decimal after the closest relative of the new species found on the list and then a '1' (or '2' or '3' or whatever, depending upon how many additions have been made previously). However, because of all of these aforementioned changes, the usefulness of the Hodges numbering system has declined, in no small part due to our more-refined understanding of the relationships within and between moth families, which has seen whole-scale changes since 1983. Thus, there are few long stretches in the numbering sequence in which the numbering actually indicates relatedness.

A new system is in the process of being born, but the delivery will take quite some time, yet, to complete. This system is noted on page 20 of the Beadle and Leckie guide. Robert Patterson (a driving force behind the superb resource that is the Moth Photographer's Group website) has devised a system in which each superfamily (a hierarchical category above family, but below order) receives a two-digit number and each species a four-digit number that is combined into a hyphenated six-digit code for each species. While only one superfamily has been completed to date, that superfamily is a gigantic and incredibly variable one of macroleps that occupies about 1/2 of the Beadle and Leckie guide (pgs. 268-527)! I do not know much more about it, but expect that Robert may be pulling his hair out dealing with the microleps!

The White-speck (10438)

Mythimna unipuncta

Family Noctuidae, subfamily Noctuinae

Photograph copyright by Tony Leukering

4 July 2012

Goshen

CMMP block N09

Distribution map

Pat Sutton emailed me yesterday with pictures of moths from her garden. Though I had visited there many times to ogle lepidopterans, those visits had all been diurnal and had been aimed at butterflies, and the two or three wonderful day-flying species of sphinx moths that are regularly attracted to the Suttons' incredible backyard garden. One of the attractants of that garden are four terra cotta trays full of rotting fruit that Red-spotted Purples and a number of other butterfly species love. Well, it seems that Pat and Clay had gone out the previous evening to see what moths might be attracted to same. Yowzer; were there ever moths!

Josh Nemeth and I invited ourselves over on the evening of Independence Day in order to see the spectacle for ourselves. We were not disappointed!

[Yours truly and Josh check out feasting moths at the Sutton residence.

Photo copyright by Pat Sutton.]

 [One of the other trays hosts a large number and goodly variety of moths, including (but not limited to) The White-speck, Ultronia Underwing, a few members of one or more Idia species, and Lunate Zale. Photograph by Tony Leukering.]

In Pat's pictures from the 3rd and in the above from the 4th, our essay focus species, The White-speck, was, far and away, the most numerous species present, usually outnumbering all other species combined. This is not all that surprising, as its caterpillars feed on grasses and other cereal grains, though little of the latter are available in Cape May County.  Grass, however, is.

The species is a widespread inhabitant of the U. S. and Canada, with the large holes in the range map probably being due to lack of sampling, not lack of occurrence. Though the species is not colorful, nor striking, it is fairly distinctive in a very large family with large numbers of similar-looking species. The species' relatively distinctive feature -- the white speck at the inner edge of the reniform spot -- rules out nearly all species, save for a few other species of wainscot, but the ruddiness of most individuals does the job in that case.

Thanks, Clay and Pat, for your hospitality!

Waterlily Borer (4751)

Elophila gyralis

Family Crambidae, subfamily Acentropinae

Photograph copyright by Tony Leukering

30 June 2012

Cape May Point

CMMP block Y02

Distribution map

We return to the Crambidae, a large and varied family of microleps, to visit another subfamily. The Acentropinae has the common name of "Aquatic Crambids" due to the fact that most species's hosts are aquatic plants, as one might have guessed by the name of this essay's subject species. I don't know how they manage, as there is little readily available on the subfamily's habits and ecologies, but they obviously do so. Many members of the subfamily have distinctive wing patterns and, for crambids, are relatively easily identified. Once you know that they are crambids. Quite a few are delta-winged, like our subject and are readily confused with members of other families (particularly macrolep families), while others hold their wings out like geometrids.

As can quickly be determined by a glance at the distribution map (as of the writing of this essay), this wee beastie represents yet another first state record, though one not at all unanticipated due to its widespread distribution in eastern and central U. S. The location at which this individual was photographed is about equidistant between Lake Lily and the water bodies of Cape May Point S. P., and that distance is not very long at all, so it's no surprise that Waterlily Borer showed up at the Davis house in Cape May Point.

Celery Looper (8924)

Anagrapha falcifera

Family Noctuidae, subfamily Plusiinae

Photograph copyright by Tony Leukering

20 April 2012

Lizardtail Sanctuary powerline cut

CMMP block N11

Distribution map

As Mike Crewe has pointed out on numerous occasions, the "loopers" of the Noctuidae are not. "Looper" is a term coined for caterpillars of the members of the Geometridae, and also known as "inchworms" or "measuring worms;" noctuid caterpillars are not at all similar. Most of the noctuid loopers are species of open country, with quite a few being crop pests and named after those crops (e.g., celery, clover, and soybean).

Most of these moths are quite attractive, with many having distinctively-shaped silver stigmata (singular, "stigma") on the forewings. These stigmata are distinctive enough that if an unknown moth sports such, one can probably start among the Plusiinae with fair expectation of finding the ID solution there. The stigma of Celery Looper creates a silvery tip to a long, arching strip of white that juts into the dark of the inner portion of the wing. This is one of the few strongly diurnal members of the Noctuidae (which is, obviously, named for the night!), and it can be found nearly throughout the county in old fields and powerline cuts. While the species' caterpillar does eat celery, locally it is probably primarily attracted to clover, corn, and dandelions. The individual pictured here was my lifer and another picture of the same critter is provided below.