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Aphid on Melaleuca quinquenervia - Greenidea psidii

Aphid on Melaleuca quinquenervia - Greenidea psidii
San Pedro, Los Angeles County, California, USA
April 28, 2018
Size: ~2mm
Duplicate of:

Images of this individual: tag all
Aphid on Melaleuca quinquenervia - Greenidea psidii Aphid on Melaleuca quinquenervia - Greenidea psidii Aphid on Melaleuca quinquenervia - Greenidea psidii

Moved from Aphids.

Greenidea psidii
Greenidea psidii is the only likely candidate I have heard of on this plant.

I believe you are correct.
That's the only species in Greenidea known to occur in California and I'm not seeing anything that doesn't match G. psidii.

Greenidea ficicola
Pretty sure we also have Greenidea ficicola, but that is pretty different from this individual.

Aphid's on the world's plants said Florida but not California, and Susan Halbert's publication from 2004 also said Florida but no mention of California. Not surprised though.

Your IDs look correct based on the short key from "THE GENUS GREENIDEA (RHYNCHOTA: APHIDIDAE) IN THE UNITED STATES" (Halbert, 2004). The reticulations are tough to see in images but it looks like the siphunculi have more of a wrinkled appearance on your images of G. ficicola.

la. Apterae with reticulations covering most of the length of the siphunculi (Fig. 3); alatae with 17-21 rhinaria on antennal segment III, in a line and not crowded or touching each other (Fig. 4) .. G. ficicola

lb. Apterae with reticulations only at the base of the si- phunculi; siphunculi ornamented with irregularly spaced spinules (Fig. 5); alatae with 20-31 rhinaria, some crowded and not in line with the others, often touching (Fig. 6) .... ...... G. psidii

Yeah, for a short time I thought I was the first to find this species in California. I did find this record from 2008 though:

I did finally get around to putting that one on Bugguide. I also went through my iNaturalist submission and posted twenty or so missing species to Bugguide in the past week.

I’ve been pretty busy lately so I haven’t had a chance work on organizing the aphid section much the past few months. I’m trying to go through tens of thousands of my specimens from Wisconsin, get those slide mounted and finish a guide on common species for work. It’s never ending!

Glad you’re contributing some of the missing species, I will also get images of my slide mounts to post when I can.

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