Megabats (suborder Megachiroptera)

*see also "Difference Between Suborders of Bats" for very basic information

http://www.newscientist.com/article/dn10721-the-bat-with-the-incredibly-long-tongue.html

Megabats use their long tongues to consume nectar.  They unintentionally pollenate other flowers with the pollen that sticks in their fur.  They distribute seeds by eating fruit and spitting the seeds or by their seedy guano.  Megabats roost in the daylight by wrapping their wings around themselves.  They have two claws on each of their forelimbs and do not hibernate.  They are known to be very clean.  They are constantly grooming themselves and are careful during urination and defication.  Some live in caves, but most megabats live in the upper canopy of tall trees in freshwater swamps, mangroves, and rainforests.  Some species form complex social systems and can utilize over 20 different calls.
http://www.wettropics.gov.au/st/rainforest_explorer/Resources/Documents/factsheets/Megabats.pdf

Difference Between Two Suborders of Bats

All bats fall under the order Chiroptera into one of two suborders: Megachiroptera and Microchiroptera (or megabats and microbats).  The names do not refer to size.  All bats of both suborders can be any range of sizes anywhere from the size of a small dog with a 2 meter wingspan wieghing 1.5 kilograms to the size of a bee weighing 2 grams.  All megabats reside in the "old world" (before columbus) in tropics and subtropics while microbats can be found all around the world.

Megabats feed almost exclusively on flowers and fruit.  They have large eyes and typically dog-like faces.  Megabats rely on smell and vision to find food and do not use echolocation with the exception of the Egyptian fruit bat, which does incorporate a form of echolocation.

Microbats have more varied tastes including: insects, fruit, pollen, nectar, fish, frogs, blood, and even other bats.  They have small eyes and often elaborate facial construction.  All microbats use echolocation to detect their prey.
http://www.bats.org.uk/pages/bats_of_the_world.html