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4-5-2011

Dear Yair,

I am wondering if this kind of thing can be posted to the Scale Insect Forum? It is very likely that scale collectors come across chamaemyiids not too infrequently, and it would be a great resource to have some "scale-eyes" on the lookout! In any case, below is the text which I would like posted to the scale community please.

Cheers,

Steve

Stephen D. Gaimari

>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 

<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 

Request for Chamaemyiidae (Diptera) - predators of Sternorrhyncha!

by   Stephen  D. Gaimari

Program Supervisor (Entomology

E-MAIL: sgaimari@cdfa.ca.gov

http://www.cdfa.ca.gov/phpps/ppd/staff/sgaimari.html

Plant Pest Diagnostics Center

California Department of Food and Agriculture

3294 Meadowview Road

Sacramento, CA 95832,

USA

* * * * * * * * * * * * *

I currently have a joint project with Nathan Havill (USDA Forest Service) working on the phylogeny of Chamaemyiidae. This project started with our looking solely at the adelgid predator lineage(s), but in the process we decided we should tackle the whole family, since I had accumulated in my own collections so many of the critical taxa. I am writing to you (the scale insect community) in the hopes that you can keep your eyes open for these flies, which at times can be very numerous in association with scales and other sternorrhynchs. To date, the genera we most critically need are the following - please contact me if you want any information about how to collect them if you are in places where they might occur! I am very happy to provide any insight you might need, although I am quite sure you all know your way around the coccoids much better than me! For those predaceous on scales, I find just holding the scale colonies and letting the flies emerge is the best method. For those attacking mealybugs, I tend to get large numbers sweeping through the vegetation housing the colonies (this is particularly effective with the grass-feeding mealybugs). Here they are (*note a few specific examples for some of these at the end of the message):

Chaetoleucopis [Australia - see below*]

Cremifania [Holarctic - on adelgids]

Leucopis (Indioleucopis) [India - see below*]

Leucopis (Leucopella) [Neotropical/Afrotropical - on various scales and mealybugs on grasses/dicots, see below*]

Leucopis (Metaleucopis) [Russia - rare - on aphids]

Leucochthiphila [Australia (Black Mountain, ACT) - rare - probably on mealybugs in grasses]

Leucopomyia [Holarctic - see below*]

Melametopia [Palearctic - rare - probably on mealybugs in grasses]

Melanochthiphila [Canary Islands only - probably on mealybugs in grasses]

Parochthiphila (Euestelia) [Holarctic - on mealybugs in grasses]
Parochthiphila (Parochthiphila) [Holarctic - on mealybugs in grasses]
new genus [Neotropical (Brazil) - on Ceroplastes]

So, I am asking if any of you collectors out there might keep an eye out for chamaemyiids - it would be a great help to this project! And of course host information is always useful! I would greatly appreciate any specimens (from anywhere in the world) of chamaemyiids in ethanol. The project is both morphological (my part, of course) and molecular (Nathan's part). I have pinned specimens for many species of course, but access to fresh and ethanol-preserved specimens will be greatly appreciated! ... of course, I am always happy with ANY chamaemyiid adults you may come across in your scale efforts!

Here are some specific examples - this isn't a limitation - just a few examples from literature of what these genera are found on. I have many other records if it will help - just ask!

Chaetoleucopis,

Dactylopius confusus (Cockerell) - Australia

Melanococcus albizziae (Maskell) - Australia

Leucopina

Dactylopius coccus Costa - Neotropical

Dactylopius confusus (Cockerell) - Nearctic

Phenacoccus helianthi (Cockerell)  - Nearctic

Leucopis (Leucopella) - these records except the first, are all Afrotropical

Ceronema africana Macfie

Dactylopius coccus Costa - also Neotropical

Dactylopius confusus (Cockerell)

Delottococcus euphorbiae (Ezzat & McConnell)

Icerya purchasi Maskell

Maconellicoccus ugandae (Laing)

Paracoccus burnerae (Brain)

Parasaissetia nigra (Nietner)

Planococcus citri (Risso)

Planococcus kenyae (LePelley)

Planococcus trispinosus James

Pseudococcus concavocerarii James

Pulvinaria  floccifera Westwood

Pulvinaria dicrostachys Leonardi

Saissetia oleae (Olivier)

Spilococcus spp.

Leucopis (Indioleucopis) luteicornis - India and Sri Lanka

Rastrococcus iceryoides (Green)

Brevennia rehi (Lindinger)

Planococcus lilacinus (Cockerell)

also on the aphid - Aphis gossypii Glover, on cotton.

Leucopomyia - egg predators within female egg sac

Filippia follicularis (Targioni Tozzetti) - Palearctic

Neopulvinaria innumerabilis (Rathvon) - Nearctic, Palearctic

Pulvinaria vitis (Linnaeus) - Nearctic, Neotropical

Planococcus ficus (Signoret) - widespread

Melaleucopis

Insignorthezia insignis (Browne) - Neotropical, Caribbean

Praelongorthezia citricola (Beingolea) - Neotropical (Peru)

Praelongorthezia olivicola (Beingolea) - Neotropical (Peru, Chile)

Pseudoleucopis

Eriococcus coriaceus Maskell - Australasia

Eriococcus eucalypti Maskell - Australia

-----------------------------------------------------------------------------

Dr. Stephen D. Gaimari

Program Supervisor (Entomology)

Plant Pest Diagnostics Center

California Department of Food and Agriculture

3294 Meadowview Road

Sacramento, CA 95832,

USA

Tel. 916-262-1131, Fax 916-262-1190

E-mail sgaimari@cdfa.ca.gov

http://www.cdfa.ca.gov/phpps/ppd/staff/sgaimari.html

Updated on: 04/05/11 10:58
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