Osmia longicornis

Taxonomy

Family: Megachilidae
Subfamily: Megachilinae
Tribe: Osmiini
Genus: Osmia Panzer, 1806
Subgenus: O. (Osmia) Panzer, 1806
Species: Osmia longicornis Morawitz, 1875
Common name: none

Overview

Osmia (Osmia) longicornis are black bees, with metallic blue luster and apical hair bands on the terga (Peters 1978). Females have intermixed black and brown hair on the head and thorax (Peters 1978). T1T3 have primarily pale brown hair, and T4T6 often have intermixed black and brown hair (Peters 1978). Males have similar hair to the females except that the margins of T6T7 have long white hair laterally (Peters 1978). Female body length is 13– 15 mm, and male body length is 11–13 mm (Ducke 1900).

Diagnostic characteristics 

(modified from Peters 1978; Romankova 1985)

May be confused with 

Osmia longicornis are very similar looking to O. opima, especially the females, which previous authors have been unable to differentiate (Romankova 1985). Males can be differentiated by dissecting them to view the gonostylus, which is apically expanded in O. longicornis and not in O. opima (Romankova 1985). S8 also varies and has recurved lateral projections about mid-way through in O. opima and not in O. longicornis (Romankova 1985). S8 of O. longicornis is also acutely pointed apically (Romankova 1985).

Phenology

Osmia longicornis adults have been recorded in flight from February to April (Peters 1978).

Host associations 

Osmia longicornis hosts are largely unknown, however, pollen loads recorded in a study by Haider et al. (2013) suggest preference for Rosaceae and Salicaceae.

Nesting behavior 

unknown

Distribution

Osmia longicornis specimens have been recorded in Uzbekistan and Afghanistan (Peters 1978).


​Distribution map generated by Discover Life -- click on map for details, credits, and terms of use.

<p><em>Osmia longicornis </em>female face, photo: Chelsey Ritner</p>
Osmia longicornis female face, photo: Chelsey Ritner
<p><em>Osmia longicornis</em> female lateral habitus, photo: Chelsey Ritner</p>
Osmia longicornis female lateral habitus, photo: Chelsey Ritner
<p><em>Osmia longicornis</em> female abdomen, photo: Chelsey Ritner</p>
Osmia longicornis female abdomen, photo: Chelsey Ritner
<p><em>Osmia longicornis </em>male face, photo: Chelsey Ritner</p>
Osmia longicornis male face, photo: Chelsey Ritner
<p><em>Osmia longicornis</em> male lateral habitus, photo: Chelsey Ritner</p>
Osmia longicornis male lateral habitus, photo: Chelsey Ritner
<p><em>Osmia longicornis</em> male abdomen, photo: Chelsey Ritner</p>
Osmia longicornis male abdomen, photo: Chelsey Ritner
<p><em>Osmia longicornis </em>male, diagram of hidden sternum S8, diagram modified from Romankova 1985</p>
Osmia longicornis male, diagram of hidden sternum S8, diagram modified from Romankova 1985
<p><em>Osmia longicornis </em>male, diagram showing dorsal view of genitalia, diagram modified from Tkalcu 1969</p>
Osmia longicornis male, diagram showing dorsal view of genitalia, diagram modified from Tkalcu 1969