The wingless female Orgyia sp. moth

on 28th September 2016

1 30 Aug - Feeding on Andira inermis [JaniceAng]

“On 30th August 2016, we spotted the Tussock moth caterpillar at Pasir Ris Park feeding on Andira inermis and it was the first time that we spotted one with yellow tussocks (above, below).

2 Yellow Tussock [JaniceAng]

“We reared it and in the morning of 3rd September it started to pupate (below)…

3 - 3 Sep 7am Start pupating-2.jpg [JaniceAng]

“…finishing the task by early afternoon (below).

4 - 3 Sep 2pm - Pupating completed-2.jpg [JaniceAng]5 Pupa [JaniceAng]

“On 6th September a white furry specimen appeared in the container (below). We were puzzled as the pupation was very short (only 3 days – when normally pupation is about 7 to 10 days).

6 6  Sept 1pm [JaniceAng]

“And we noticed movements of the fully formed legs and body parts (below, also videos).

9 - Orgyia sp. [JaniceAng]

“On 7th September Craig Williams informed us that it is a flightless female Orgyia sp. Close up of the face and head of the adult wingless female are shown below.

10 Closeup head [JaniceAng]11 Closeup face [JaniceAng]

“We placed her in the open (below with scale in inches).

12 size [JaniceAng]

“…hoping that a male would come to mate her. Unfortunately it did not happened.”

Foo Jit Leang & Janice Ang
Nature@Seletar Country Club
9th September 2016

Note: Videos and images by Janice Ang.

If you like this post please tap on the Like button at the left bottom of page. Any views and opinions expressed in this article are solely those of the authors/contributors, and are not endorsed by the Lee Kong Chian Natural History Museum (LKCNHM, NUS) or its affiliated institutions. Readers are encouraged to use their discretion before making any decisions or judgements based on the information presented.

YC Wee

Dr Wee played a significant role as a green advocate in Singapore through his extensive involvement in various organizations and committees: as Secretary and Chairman for the Malayan Nature Society (Singapore Branch), and with the Nature Society (Singapore) as founding President (1978-1995). He has also served in the Nature Reserve Board (1987-1989), Nature Reserves Committee (1990-1996), National Council on the Environment/Singapore Environment Council (1992-1996), Work-Group on Nature Conservation (1992) and Inter-Varsity Council on the Environment (1995-1997). He is Patron of the Singapore Gardening Society and was appointed Honorary Museum Associate of the Lee Kong Chian Natural History Museum (LKCNHM) in 2012. In 2005, Dr Wee started the Bird Ecology Study Group. With more than 6,000 entries, the website has become a valuable resource consulted by students, birdwatchers and researchers locally and internationally. The views and opinions expressed in this article are his own, and do not represent those of LKCNHM, the National University of Singapore or its affiliated institutions.

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