Camponotus laevigatus

(Smith, 1858)

Hairless Smooth Carpenter Ant

laevigatus is a California that nests in dead oak branches, particularly of Quercus wislizeni (interior live oak). It maintains an obligate with the bacterial endosymbiont Blochmaniella, with which it shows strong codiversification patterns. genetic studies reveal three phylogeographic clusters with the Central Valley acting as a significant barrier to , and Pleistocene climatic cycles have shaped its current distribution.

Camponotus laevigatus by (c) Don Loarie, some rights reserved (CC BY), uploaded by Don Loarie. Used under a CC-BY license.

Camponotus laevigatus by no rights reserved, uploaded by Jesse Rorabaugh. Used under a CC0 license.

Pronunciation

How to pronounce Camponotus laevigatus: //ˌkæm.pəˈnoʊ.tus ˌleɪ.vɪˈɡeɪ.təs//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from the more widespread laevissimus (formerly misidentified as C. laevigatus) by geographic restriction to California and association with oak . Most museum specimens and literature prior to taxonomic revision labeled as C. laevigatus actually refer to C. laevissimus. Accurate identification requires attention to collection locality and association.

Images

Appearance

A with smooth, relatively hairless . As a member of the , it exhibits the characteristic single node and typical of formicine . The specific epithet 'laevigatus' refers to its smooth, polished appearance.

Habitat

Nests in dead branches of oak trees, specifically Quercus wislizeni (interior live oak). Requires woody substrate for gallery construction.

Distribution

to California, USA. The Central Valley forms a significant biogeographic barrier separating into three phylogeographic clusters.

Host Associations

Blochmaniella - obligate endosymbiontBacterial endosymbiont transmitted vertically with congruent supporting codiversification
Quercus wislizeni - nest substrateInterior live oak provides dead branches for nesting

Behavior

Foragers from nearby sampling sites display some shared kinship, suggesting limited . Individuals from the same sampling site typically show full-sister relationships, indicating colony-level kin structure and probable monogynous or oligogynous colony organization.

Similar Taxa

Camponotus laevissimusFormerly confused with C. laevigatus; most historical literature and museum specimens labeled C. laevigatus actually refer to this more widespread . Distinguished by broader geographic distribution beyond California.
Camponotus quercicolaSynonym; former name for this before taxonomic revision.

Misconceptions

Most literature and museum specimens historically identified as laevigatus actually refer to Camponotus laevissimus. The true C. laevigatus is a narrower restricted to California oak .

More Details

Phylogeography

Whole- sequencing reveals three distinct phylogeographic clusters shaped by Pleistocene climatic cycles. Strong isolation-by-distance pattern with positive correlation between genetic and geographic distance.

Codiversification

Exhibits obligate with endosymbiont Blochmaniella with and congruent , representing a rare documented case of intraspecific -endosymbiont codiversification in .