D I S C O V E R    L I F E   
Bee Hunt! Odonata Lepidoptera 
  HomeAll Living ThingsIDnature guidesGlobal mapperAlbumsLabelsSearch
  AboutNewsEventsResearchEducationProjectsStudy sitesHelp

Trachusa autumnalis (Snelling, 1966)
Heteranthidium autumnale Snelling, 1966

Life   Insecta   Hymenoptera   Apoidea   Megachilidae   Trachusa
Subgenus: Heteranthidium

Trachusa autumnalis, female, head, mtg
© Kimberly Huntzinger, 2007 · 1
Trachusa autumnalis, female, head, mtg

Click on map for details about points.

Extracted from THE POLLEN-COLLECTING BEES OF THE ANTHIDIINI OF CALIFORNIA (Hymenoptera: Megachilidae) by GRIGARICK A., A. (1968).

Geographic range.—Southern California, Colorado Desert. California records.—RIVERSIDE Co.: Desert Hot Springs, 3 mi. NE, 1 6\ 1 9, XI-8-63 (R. McDiarmid, LACM). The color of both sexes of this species is black with pale yellow maculations. The metasomal bands are closed to form a black spot more typical of other genera of the tribe. H. autumnale exhibits a number of morphological characteristics similar to H. timberlakei and H. zeb-ratum. The females of autumnale are distinguished with a clypeus with a relatively smooth apical mar¬gin and a tergum VI that is nearly straight when
viewed from the side (fig. 122), contrasted to the toothed clypeus and convex tergum VI of timber¬lakei (fig. 126). Both sexes of autumnale have more strongly developed forecoxal projections and carinae on the leading edge of the pronotal lobes than tim¬berlakei. No information is known of the biology of this rare species. Its scarcity may be attributed to the infrequency of collections in the fall season.

Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
_  Asteraceae sp @ BBSL__KWC (1)

Withheld @ BBSL (1)

go to Discover Life's Facebook group

Updated: 2018-10-22 17:15:24 gmt
Discover Life | Top
© Designed by The Polistes Corporation