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Eurema caterpillars defoliating a Serianthes sapling
I observed Eurema caterpillars defoliating a Serianthes nelsonii sapling growing at the University of Guam Agricultural Experiment Station in Yigo.
Four Most Damaging Termites in the Philippines
Thrips Damaging Onion Leaves
On November 19, Joe Cruz brought in some onion leaves with apparent thrips damage. Managed to find one thrips but it did not look like the usual suspects.
I have tentatively identified it as Dinuthrips hookeri based on a match to the description and images on the Thrips of California web site.
This thrips was first detected on Guam early in 2012. This is a South American species which has spread to the Caribbean and Florida. To date, it has not been found in California or Hawaii.
More info to be posted here in the near future.
According to Holloway, the species of Eumelea on Guam is ludovicata
"Swezey (1946) recorded the life history of a Eumelea on Guam that
he attributed to rosalia Stoll. Material from Guam in the BMNH is
referable to ludovicata. The host plant was also Macaranga."
See "Moths of Borneo" page at http://www.mothsofborneo.com/part-9/eumeleini/eumeleini_8_7.php
Tobacco Flea Beetle, Epitrix hirtipennis, on hot pepper, Capsicum annum
507b78c288944 Edward San Nicolas res., Dededo, Guam 13.54744°N 144.832596°E ex. Capsicum annum coll. Jesse Bamba 15-JUL-2012 CHRYSOMELIDAE Epitrix hirtipennis det. Aubrey Moore 15-OCT-2012
Sphinx moth trapped while feeding from ginger lily flower
Olympia Terral brought in a sphinx moth that had died with its proboscis trapped in a ginger lily flower. At first it appeared that the proboscis was stuck between the calyx and carolla. However, carefull microscopic examination revealed that the proboscis had been inserted deep into a flower. The carolla of this flower had died and shrunk, tightly enshrouding the proboscis. Dissection of the corolla showed that it is lined with downward-angled hairs. These hairs may have caused enough friction to prevent the moth from withdrawing its proboscis.
Olympia has seen this phenomenon several times on Guam and similar observations have been previously reported elsewhere:
There were a large number of white-footed ants, Technomyrmex albipes, tending aphids, Pentalonia caladii, in these flowers.
Utility for Adding Images to Blog Postings on guaminsects.myspecies.info
I wrote this Java web-start application to generate HTML code which makes a single-row table of images which can be browsed using light box. The images can be uploaded to the site by selecting Image | Upload multiple images on the Contents menu.
The application can be downloaded accessed at http://guaminsects.net/blogpostutil/blogpostutil_info.jar
Notes. The executable JAR file contains source code and it can be run locally.