Opiliones

E425569

Opiliones, commonly known as harvestmen or daddy longlegs, are an order of arachnids characterized by compact bodies and long, slender legs, distinct from spiders by their fused body segments and lack of silk or venom glands.

All labels observed (1)

Label Occurrences
Opiliones canonical 1

How this entity was disambiguated

Statements (52)

Predicate Object
instanceOf order of arachnids
absentFrom Antarctica NERFINISHED
bodyLengthRange approximately 1–22 mm (excluding legs)
class Arachnida
commonName daddy longlegs
harvestmen
defenseMechanism leg autotomy
release of repellent chemicals
thanatosis (feigning death)
describedBy Carl Ludwig Koch NERFINISHED
developmentType direct development without metamorphosis
diet omnivorous
predator of small invertebrates
scavenger
differenceFromSpiders fused prosoma and opisthosoma
lack of silk production
lack of venom glands
distinguishedFrom spiders
distribution worldwide
ecologicalRole decomposer
invertebrate predator
eggLaying oviparous
estimatedSpeciesRichness >10000
eyeType median eyes on ocular tubercle
habitat caves
forests
grasslands
leaf litter
under stones and logs
hasCharacteristic ability to autotomize legs
compact body
fused body segments
lack of silk glands
lack of venom glands
long slender legs
odoriferous defensive glands
second pair of legs often used as sensory organs
segmented abdomen
simple eyes
single apparent body region
kingdom Animalia
locomotion walking
numberOfDescribedSpecies >6500
phylum Arthropoda NERFINISHED
reproduction internal fertilization
suborder Cyphophthalmi NERFINISHED
Dyspnoi NERFINISHED
Eupnoi NERFINISHED
Laniatores NERFINISHED
subphylum Chelicerata NERFINISHED
taxonRank order
yearDescribed 1839

How these facts were elicited

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Arachnida includesOrder Opiliones