PacSci Blog


Fresh Sheet – June 8, 2019

by | Jun 8, 2019

Danaus plexippus (The Monarch)

Danaus plexippus (The Monarch)

One of the best-known insects in the world, Danaus plexippus (The Monarch) is most famous for its amazing Western Hemisphere migration. But did you know that Monarchs have an almost worldwide geographic range?

Although native from Canada to Northern South America, Monarchs can be found in many other parts of the world. Since the nineteenth century, Monarch butterfly populations have been reported in Hawaii, throughout the South Pacific Islands and Australia as well as Portugal, Spain and a few other European countries. Scientists are not certain how these Monarch populations sprang up so far away from their origins but we’re curious. Was it human dispersal? Did flocks of Monarchs fly far over the ocean? Is there some other explanation? What do you think?

At Pacific Science Center we know that our Monarch butterflies are sustainably raised and come from environmentally positive butterfly farms. Visit us soon to see the Monarchs and many other butterflies flying in our Tropical Butterfly House.

Suministros Entimológicos Costarricenses, SA
CRES, Costa Rica

18 – Archeoprepona demophon (One-spotted Prepona)
10 – Battus polydamas (Gold Rim Swallowtail)
64 – Catonephele numilia (Grecian Shoemaker)
57 – Danaus plexippus (The Monarch)
35 – Greta oto (Glasswing)
10 – Hamadryas amphinome (Red Calico)
8 – Heliconius doris (Doris Longwing)
9 – Heliconius hecale (Tiger Longwing)
22 – Heliconius melpomene (Postman)
8 – Heraclides anchisiades (Ruby-spotted Swallowtail)
50 – Morpho peleides (Peleides Blue Morpho)
2 – Myscelia cyaniris (Blue Wave Butterfly)
10 – Opsiphanes tamarindi (Tamarind Owl)
10 – Papilio cresphontes (Giant Swallowtail)
7 – Papilio thoas (Thoas Swallowtail)
10 – Prepona omphale (Blue Belly-Button)
12 – Siproeta epaphus (Rusty-tipped Page)
43 – Siproeta stelenes (Malachite)

Total = 385


“Fresh Sheet” is our weekly shipment report of pupae on display in the emerging window. Visit Pacific Science Center’s Tropical Butterfly House and meet our newest residents.These butterflies typically arrive as pupae on the Thursday or Friday before the Fresh Sheet is published. Some of these butterflies will start emerging the day they arrive or the next day, but other species may take a full week before they reach adulthood. After emerging, they may live for a week or even a few months! While we love sharing a variety of species with our guests, we cannot guarantee that any specific species will be flying on the day that you visit Pacific Science Center.If you are interested in photographing a specific butterfly and would like to be updated about when it is flying in the Tropical Butterfly House, please email with details and your contact information.

Adopt a Butterfly

Love the Tropical Butterfly House? Spread that love by adopting one of our beautiful winged creatures! Starting at just $50, your adoption will help care for the butterflies in the Tropical Butterfly House, and support of the hands-on science programming offered at Pacific Science Center. And, you’ll receive some exclusive benefits for your generosity.