Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


TaxonomyBrowseInfoImagesLinksBooksData
Photo#1607835
Labelled male Polybiomyia from the Essig Museum - Polybiomyia townsendi - male

Labelled male Polybiomyia from the Essig Museum - Polybiomyia townsendi - Male
25 miles S. of Ivanpah, San Bernardino County, California, USA
October 13, 1958
For full-size image, click here...then click the image again.

This is a companion photo to the preceding image of this series...indicating a few additional parts not labelled in that image, namely the: ocellar triangle, vertex, lateral edges of the transverse suture, scutellum, post-scutellum, halteres, and scutum (often referred to as the "mesonotum", though that's considered incorrect usage by some...see below).
_________________________________________________

The following quote from pg. 24 of the "Manual of Nearctic Diptera(1)" may be useful to note:

"The mesonotum includes the entire dorsum of the mesothorax. Its three basic components are the prescutum, the scutum (mesoscutum), and the scutellum; it also includes a fourth part posteriorly, the postnotum (metanotum, postscutellum), which is probably derived from an inter-segmental acrotergite. Unfortunately, many dipterists have misapplied the term mesonotum to the scutum only."
"The true prescutum, as opposed to an anterior portion of the scutum that Curran and others incorrectly called the prescutum, is greatly reduced in the Diptera."
Thus care should be taken in interpreting Curran and other author's use of the term "prescutum", which likely refers to the presutural area of the scutum (= "mesonotum" of those author's).

Images of this individual: tag all
Curated male Polybiomyia from the Essig Museum - Polybiomyia townsendi - male Curated male Polybiomyia from the Essig Museum - Polybiomyia townsendi - male Curated male Polybiomyia from the Essig Museum - Polybiomyia townsendi - male Curated male Polybiomyia from the Essig Museum - Polybiomyia townsendi - male Labelled male Polybiomyia from the Essig Museum - Polybiomyia townsendi - male Labelled male Polybiomyia from the Essig Museum - Polybiomyia townsendi - male