Fulvous

Fulvous is a colour, sometimes described as dull orange, brownish-yellow or tawny; it can also be likened to a variation of buff, beige or butterscotch. As an adjective it is used in the names of many species of birds, and occasionally other animals, to describe their appearance. It is also used as in mycology to describe fungi with greater colour specificity, specifically the pigmentation of the surface cuticle, the broken flesh and the spores en masse.
The first recorded use of fulvous as a colour name in English was in the year 1664. Fulvous in English is derived from the Latin "fulvus", a term that can be recognised in the scientific binomials of several species, and can provide a clue to their colouration.

Birds

Reptiles

Highland garter snake

Mammals

Fish

Cephalopholis fulva, coney or butterfishStarksia fulva, yellow blenny

Invertebrates

Fulvous dawnfly
Fulvous forest skimmerDorylus fulvus, a West African antTechnomyrmex fulvus, a Central American antNylanderia fulva, a South American antParatrechina fulva, a South American antAphaenogaster fulva, a nearctic American antSmicronyx fulvus, a sunflower seed weevilTigriopus fulvus, a marine copepodMenemerus fulvus, a Japanese jumping spiderMegahexura fulva, the tawny dwarf tarantulaEuconulus fulvus, a New Zealand land snailRhagonycha fulva, the common red soldier beetleLibellula fulva, the scarce chaser; a British dragon flyAplysina fulva, a scattered pore rope sponge

Fungi

Fomes fulvus, a North American conkAmanita fulvaMycovellosiella fulva, a plant pathogenByssochlamys fulva, a plant pathogen Cladosporium fulvum, a plant pathogenXanthoria fulva, a lichen

Prokaryotes

Myxococcus fulvus

''Pseudomonas fulva''

Plants

Plagiobothrys fulvus, fulvous popcorn flowerChrysopogon fulvus, red false beardgrassHemerocallis fulva, tawny daylilyIris fulva, copper irisPolyscias fulva a West African parasol treeUlmus fulva, slippery elmQuercus fulva, an endemic Mexican oakUtricularia fulva, an Australian carnivorous plantLivistona fulva, a palm having fronds with golden undersidesMadhuca fulva, a threatened tree endemic to Sri LankaArachnorchis fulva, the tawny spider-orchidArctophila fulva, arctic march grass