Allen's big-eared bat (Idionycteris phyllotis) is a species of vesper bat in the monotypic genus Idionycteris. It occurs in Mexico and in Arizona, California, Nevada, New Mexico, Utah, and Colorado in the United States.
Description
Idionycteris is a bat with large ears, weighing 8 to 16 grams. On the dorsal side they possess long and soft pelage, also referred to as fur. Their fur is basally blackish in color with tips that are a yellow-gray color. Idionycteris, has a black patch on each shoulder, a tuft of white hair on the backside of the ears, as well as, ventral hairs that are black with pale tips. The calcar possesses a low keel. The uropatagium has 12 to 13 transverse ribs. The rostrum is flattened and broad.
Idionycteris phyllotis has an external morphology like that of gleaning bats, which means they have adaptions required for plucking stationary insects from surfaces. To do this, they have long tragi and ears, wings adapted for maneuverability and hovering flight, and a gracile jaw. Allen’s big-eared bat (Idionycteris phyllotis) is the only species in North America known to emit long, constant frequency-frequency modulated echolocation calls.
Range and habitat
The Allen’s big-eared bat inhabits the southwestern mountainous regions of Mexico and the United States. This species, occupies a wider range in elevation, ranging from 855 m to 3,225 m, while most specimens reside at altitudes between 1,100 m and 2,500 m.
Species of subfamily Vespertilioninae
|
---|
|
|
|
Aeorestes |
|
---|
|
Antrozous |
|
---|
|
Arielulus |
- Collared pipistrelle (A. aureocollaris)
- Black-gilded pipistrelle (A. circumdatus)
- Coppery pipistrelle (A. cuprosus)
- Social pipistrelle (A. societatis)
- Necklace pipistrelle (A. torquatus)
|
---|
|
Barbastella |
- Western barbastelle (B. barbastellus)
- Beijing barbastelle (B. beijingensis)
- Indian barbastelle (B. darjelingensis)
- Asian barbastelle (B. leucomelas)
|
---|
|
Bauerus |
- Van Gelder's bat (B. dubiaquercus)
|
---|
|
Chalinolobus |
|
---|
|
Corynorhinus |
|
---|
|
Dasypterus |
|
---|
|
Eptesicus |
- E. anatolicus
- Little black serotine (E. andinus)
- Bobrinski's serotine (E. bobrinskoi)
- Botta's serotine (E. bottae)
- Brazilian brown bat (E. brasiliensis)
- E. chiriquinus
- Diminutive serotine (E. diminutus)
- Surat serotine (E. dimissus)
- Horn-skinned bat (E. floweri)
- Argentine brown bat (E. furinalis)
- Big brown bat (E. fuscus)
- Gobi big brown bat (E. gobiensis)
- Guadeloupe big brown bat (E. guadeloupensis)
- Long-tailed house bat (E. hottentotus)
- Harmless serotine (E. innoxius)
- E. isabellinus
- E. japonensis
- Kobayashi's bat (E. kobayashii)
- E. lobatus
- Sind bat (E. nasutus)
- Northern bat (E. nilssonii)
- E. ognevi
- E. pachyomus
- Thick-eared bat (E. pachyotis)
- Lagos serotine (E. platyops)
- Serotine bat (E. serotinus)
- E. taddeii
- Sombre bat (E. tatei)
|
---|
|
Euderma |
|
---|
|
Eudiscopus |
- Disk-footed bat (E. denticulus)
|
---|
|
Falsistrellus |
|
---|
|
Glauconycteris |
- Allen's striped bat (G. alboguttata)
- Silvered bat (G. argentata)
- Beatrix's bat (G. beatrix)
- Curry's bat (G. curryae)
- Bibundi bat (G. egeria)
- Glen's wattled bat (G. gleni)
- Allen's spotted bat (G. humeralis)
- Kenyan wattled bat (G. kenyacola)
- Machado's butterfly bat (G. machadoi)
- Abo bat (G. poensis)
- Variegated butterfly bat (G. variegata)
|
---|
|
Glischropus |
- G. aquilus
- G. bucephalus
- Javan thick-thumbed bat (G. javanus)
- Common thick-thumbed bat (G. tylopus)
|
---|
|
Hesperoptenus |
- Blanford's bat (H. blanfordi)
- False serotine bat (H. doriae)
- Gaskell's false serotine (H. gaskelli)
- Tickell's bat (H. tickelli)
- Large false serotine (H. tomesi)
|
---|
|
Histiotus |
- Strange big-eared brown bat (H. alienus)
- H. diaphanopterus
- Humboldt big-eared brown bat (H. humboldti)
- Thomas's big-eared brown bat (H. laephotis)
- [Big-eared brown bat (H. macrotus)
- Southern big-eared brown bat (H. magellanicus)
- Small big-eared brown bat (H. montanus)
- Tropical big-eared brown bat (H. velatus)
|
---|
|
Hypsugo |
- H. alaschanicus
- H. anthonyi
- Arabian pipistrelle (H. arabicus)
- Desert pipistrelle (H. ariel)
- H. bemainty
- Cadorna's pipistrelle (H. cadornae)
- Broad-headed pipistrelle (H. crassulus)
- Long-toothed pipistrelle (H. dolichodon)
- Eisentraut's pipistrelle (H. eisentrauti)
- Brown pipistrelle (H. imbricatus)
- Joffre's pipistrelle (H. joffrei)
- Red-brown pipistrelle (H. kitcheneri)
- Lanza's pipistrelle (H. lanzai)
- Burma pipistrelle (H. lophurus)
- Big-eared pipistrelle (H. macrotis)
- Mouselike pipistrelle (H. musciculus)
- Chinese pipistrelle (H. pulveratus)
- Savi's pipistrelle (H. savii)
- Vordermann's pipistrelle (H. vordermanni)
|
---|
|
Ia |
- Great evening bat (I. io)
|
---|
|
Idionycteris |
- Allen's big-eared bat (I. phyllotis)
|
---|
|
Laephotis |
- Angolan long-eared bat (L. angolensis)
- Botswanan long-eared bat (L. botswanae)
- Namib long-eared bat (L. namibensis)
- De Winton's long-eared bat (L. wintoni)
|
---|
|