▁and ▁body ▁combined ▁is ▁ 3 6 ▁to ▁ 4 6   mm , ▁the ▁tail ▁is ▁ 2 8 ▁to ▁ 3 4   mm , ▁from ▁not ch ▁at ▁base ▁to ▁tip ▁the ▁ear ▁length ▁is ▁ 9 ▁to ▁ 1 3   mill imet res . ▁The ▁sk ull , ▁at ▁its ▁longest ▁measurement , ▁is ▁ 1 1 . 9 ▁to ▁ 1 3 . 4 ▁mill imet res ▁with ▁a ▁mean ▁of ▁ 1 2 . 7   mm . ▁A ▁sample d ▁weight ▁range ▁of ▁V . ▁reg ulus ▁from ▁ 3 . 6 ▁to ▁ 7 . 0 ▁gr ams ▁gave ▁a ▁mean ▁figure ▁of ▁ 5 . 2 ▁gr ams . ▁ ▁They ▁are ▁highly ▁ener get ic ▁and ▁can ▁h unt ▁their ▁pre y , ▁insect s , ▁with ▁great ▁ag ility . ▁ ▁Another ▁bat ▁of ▁the ▁genus , ▁the ▁little ▁forest ▁species ▁V es pad el us ▁v ult urn us , ▁is ▁also ▁found ▁in ▁eastern ▁regions , ▁it ▁is ▁usually ▁smaller , ▁a ▁for ear m ▁length ▁of ▁less ▁than ▁ 3 1   mm , ▁probably ▁poss esses ▁a ▁wh it ish ▁trag us , ▁a ▁head ▁has ▁a ▁pron ounced ▁brow . ▁The ▁in land ▁forest ▁bat ▁V es pad el us ▁ba ver stock i ▁is ▁distinguished ▁by ▁its ▁smaller ▁size ▁in ▁their ▁common ▁range ▁to ▁the ▁north , ▁and ▁is ▁pal er ▁in ▁colour ▁and ▁la cks ▁the ▁distinct ▁fol d ▁at ▁the ▁gl ans ▁pen