Nov. 15, 2012

Content for nearly all planthopper genera North of Mexico (except Gaetuliini, Tropiduchidae, at this point) has been uploaded.  Development of content has slowed a little because of the birth of my son (on Oct. 18), and subsequently by hurricane Sandy.  I hope to have content for the remaining 10 genera by the end of the calender year.

I also have additional delphacid species photographed and will work on uploading that content once I finish with the Gaetuliini.

Unrelated to this website, but of interested to the larger community (particularly here at the University of Delaware) is that Tom Wood's treehopper collection at Cornell has been curated and a list is now available online here at the Cornell University insect collection.

 

Sept 3, 2012

I have uploaded content for Acanaloniidae, Achilidae, Caliscelidae, Cixiidae, Derbidae, Fulgoridae, Issidae and
Kinnaridae for genera north of Mexico (front page here).  This leaves Dictyopharidae, Flatidae, Nogodinidae, Tropiduchidae and a key to family to go.  Dictyopharidae next.

Interesting mystery - this photo was taken of some delphacids on the grass Paspalum in Florida:

Image courtesy Lyle Buss (U. of Florida, Dept. Entomology & Nematology)

They appear to me (and Steve Wilson) to be Tagosodes, probably approximatus; but we will need to look at a tail to be sure (there are some other possibilities, less likely, and not previously reported from Florida).  I am not aware of Tagosodes approximatus being found in abundance before.  Hopefully I'll be able to look at some specimens to be sure.

Update: These are Tagosodes albolineosus on Paspalum repens.

 

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Aug. 3, 2012

Okay - I'm not good about putting updates here.

Anyway - new pub:

Kennedy, A. C., C. R. Bartlett, and S. W. Wilson. 2012. An annotated checklist of the delphacid planthoppers (Hemiptera: Delphacidae) of Florida with the description of three new species and the new genus, Meristopsis. Florida Entomologist 95(2): 395-421. (http://journals.fcla.edu/flaent/issue/view/3805)

The digital library has been updated substantially

http://ag.udel.edu/enwc/research/delphacid/digitallibrary.html

And major updates happening here

http://ag.udel.edu/enwc/research/planthoppers/

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June 20, 2011

I've had a major update to the parasitoids of Delphacidae courtesy of Dr. Eduardo Virla and Dra. Erica Luft Albarracín (División Control Biológico de Plagas, Laboratorio de Enemigos Naturales de Plagas Agrícolas del NOA, PROIMI Biotecnologia - CONICET, Tucumán, Argentina; http://www.biocontroltucuman.com.ar/).  They have provided a list of delphacid parasites, their hosts, literature and other information. The updated page is here.

I very much appreciate the update from Dr. Virla and Dra. Luft Albarracín.  Thank you -

Dr. Virla has a dryinid site here: www.parasitoides.com.ar.

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May 30, 2011

I now have a web page completed for all New World genera (here).  I still would like to add pages for a few Old World genera that are of concern - which would be linked from the 'Economic Importance' or 'Species of Special Concern' pages.  I'll be adding content to these pages as materials, time, and inspiration allow. 

 

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March 21, 2011

The 19th annual aggregation at Little Orleans campground in Maryland will be held June 3-5 2011 (arrive Friday, depart Sunday).  The trip was originally started in 1989 by the late Tom Wood as an informal aggregation of treehopper workers, students, friends and significant others.  Now, while the Membraskiteers still form the core of the group (an example of phylogenetic inertia?), entomological interests of the group is more diverse.  It still provides a great opportunity to talk and collect with others passionate about insects.

To obtain further information, please contact me.   Campsites are somewhat limited, and I need to plan food on Saturday evening, so please let me know if you plan on attending. Participants are expected to provide their own tents, food, and camping gear, and to share in the cost of the group campground registration and the group meal provided on Saturday evening.

The gathering has also been announced at Lew Deitz & Matt Wallace's Treehopper site here (at the bottom of the page).

 

Other News -

There are now web pages for all genera of New World Asiracinae (there is a link to each tribe, and from each tribe a link to each genus), Plesiodelphacinae, and Kelisiinae. I still have Stenocraninae, and the Tropidocephalini and Saccharosydnini within the Delphacinae to complete.

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March 4, 2011

I've been creating web pages for all New World genera and genera with potentially invasive species.  At this writing, I have 5 more genera before I am done with the 73 genera of Delphacini. The pages provide a species list of the genus, host records, comments on economic importance, specimen photos, and selected references.  Of course I will be updating and improving these pages over time.

We can now post PDFs into the 1940-present bibliographic database.  PDF's have been getting uploaded quickly - about 1,000 uploaded as of this writing.  Most of the PDFs are just scans of photocopies.  We will be improving these as opportunity allows (I would be happy to accept PDF contributions). 

The list of New World species has been updated a number of times.  We are working on a database for New World species - it is expected to replace the text listing of species that I posted some time back.

Lots of little changes...

 

Also, Looking for specimens of this undescribed genus.  These specimens are from Arizona (on Muhlenbergia).  I have specimens from Arizona and Mexico.

.

[now described as Akemetopon inornatum Weglarz and Bartlett, 2011]

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January 10, 2011

The interactive morphology guide has been posted here.

I've updated and compiled the Nearctic and Neotropical species list into a single list, which I have posted under "New World Species".   With a little more editing I'll post a PDF. Photos of each genus will follow, probably after IT reconfigures the pages I've created for the list.

I've also begun to post PDFs for the Pre-1940 digital library. Posting PDFs for the 1940-present library is hung up because of a technical glitch for the moment.

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August 3, 2010

I've updated the South American delphacid checklist - adding a new species and added the species from Juan Fernandez and Chiloe Islands, which for some reason were not there.  I've also updated the specimens wanted section, again.

A beta version of the morphology guide will be posted after we've had a little more time to work with it.

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June 25, 2010

The morphology guide is almost ready.  I uploaded a screenshot this morning.

I'll be presenting at the 13th International Auchenorrhyncha Congress (and 7th International Workshop on Leafhoppers and Planthoppers of Economic Significance) held in Vaison-la-Romaine in the south of France in a couple of days.

The "specimens wanted" checklist has been updated.

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May 3, 2010

The species checklists for both North and South America have been updated. 

(I had missed the Juan Fernández Islands entirely!)   I've also updated the

numbers of New World species annotated on the 'scope' page.

The interactive morphology guide is coming along....

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April 2, 2010

This site came online Sept. 2009.

I'll post significant changes, updates or other events here.

This site is new, so contact me with comments or questions.

in particular, let me know if you find any errors, or something

that needs to be explained better.

Charles Bartlett

Bartlett[at]udel.edu

University of Delaware

Department of Entomology and Wildlife Ecology

250 Townsend Hall

531 S College Ave

Newark, DE 19716-2160

Below: Bakerella cornigera Beamer, 1950