Osmia quadricornuta

Taxonomy

Family: Megachilidae
Subfamily: Megachilinae
Tribe: Osmiini
Genus: Osmia Panzer, 1806
Subgenus: O. (Osmia) Panzer, 1806
Species: Osmia quadricornuta Wu, 2004
Common name: none

Overview

Osmia quadricornuta are black bees with a blue or bronze-green metallic luster (Wu 2004Wu 2004:
Wu, Y. 2004. Ten new species of the tribe Osmiini from China (Apoidea, Megachilidae, Osmiini). Acta Zootaxonomica Sinica 29: 531ndash;537.). Females have erect golden-yellow hairs on the basalbasal:
originating at the foundation of a structure
part of the clypeusclypeus:
a section of the face below the antennae, demarcated by the epistomal sutures
, genagena:
the cheek or side of the head
, vertexvertex:
the area between the ocelli and the back of the head
, and scutumscutum:
the large segment on top of the thorax located between the wings and behind the head
. T1T1:
the segments on the top side of the abdomen, often abbreviated when referring to a specific segment to T1, T2, T3, T4, T5, T6, or T7
is covered with long yellow-brown hairs, and T2–T5 are covered with long black-brown hairs (Wu 2004Wu 2004:
Wu, Y. 2004. Ten new species of the tribe Osmiini from China (Apoidea, Megachilidae, Osmiini). Acta Zootaxonomica Sinica 29: 531ndash;537.). In males, the paraocular areaparaocular area:
the area extending along the sides of the face parallel to the eye
and clypeusclypeus:
a section of the face below the antennae, demarcated by the epistomal sutures
are covered with dense white hair intermixed with a few black hairs, the vertexvertex:
the area between the ocelli and the back of the head
and the upper part of the genagena:
the cheek or side of the head
have black to brown hairs, T1–T5 have yellow apicalapical:
near or at the apex or end of any structure
bands, and the discs of T2–T5 are covered in thin black hair (Wu 2004Wu 2004:
Wu, Y. 2004. Ten new species of the tribe Osmiini from China (Apoidea, Megachilidae, Osmiini). Acta Zootaxonomica Sinica 29: 531ndash;537.). Female body length is 11–12 mm, and male body length is 9 mm (Wu 2004Wu 2004:
Wu, Y. 2004. Ten new species of the tribe Osmiini from China (Apoidea, Megachilidae, Osmiini). Acta Zootaxonomica Sinica 29: 531ndash;537.).

Phenology

unknown

Host associations 

unknown

Distribution

Osmia quadricornuta specimens have been recorded in Yunnan province in China (Wu 2004Wu 2004:
Wu, Y. 2004. Ten new species of the tribe Osmiini from China (Apoidea, Megachilidae, Osmiini). Acta Zootaxonomica Sinica 29: 531ndash;537.).

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References

Wu, Y. 2004. Ten new species of the tribe Osmiini from China (Apoidea, Megachilidae, Osmiini). Acta Zootaxonomica Sinica 29: 531-537.