Stenamma punctatoventre Snelling

Submitted by David on Thu, 09/09/2010 - 01:01
Genus Species: 
Stenamma punctatoventre
Biology
Biology Introduction: 

There is little known about the biology of this species. The type specimens were collected under a decayed limb in litter. Additional collections have been made in conifer forest, mixed forest, and riparian woodlands. Workers have typically been captured in leaf litter, under stones, or as single stray foragers.

Identity
Identification: 

Eyes of worker with 4-6 facets in greatest diameter and separated from mandibular insertions by 1.3-1.8 x EL; first gastric sternite and tergite both closely punctulate in part; cephalic rugulae fine, largely effaced by dense punctulation; mesopleura densely and coarsely punctate, rugulae obscure when present. Workers are medium ferruginous, but variable, usually with the cephalic dorsum being conspicuously darker and the apex of the gastric segments yellowish.

Snelling 1973

Etymology Text: 

Combining form of punctum (dot or point) plus venter (belly), in allusion to the punctate first sternite.

Snelling 1973

Occurrence
Range: 

USA. Known from California and Washington state.

Region: 
Nearctic
Type Information
Type Information: 

Holotype and 15 paratype workers: Todd's Creek, about 5 mi W. Foresthill, Placer Co., CALIF., elev. ca. 1900', 24 June 1962 (R. R. Snelling), under decayed limb in litter. Allotype male and one male, four female, nine worker paratypes: Dodge Ridge, 6000', Tuolumne Co., CALIF., 6 Sept. 1967 (G. C. and J. N. Wheeler, #182). Holotype, allotype, two female and 14 worker paratypes in LACM; one male, one female, three worker paratypes in GCW; one female, three worker paratypes in MCZ; one paratype each in AMNH, USNM, ACC, WSc.

Snelling 1973

Type Locality: 

Todd's Creek, Placer Co, California.