Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
 

Register · Log In
HomeGuideID RequestRecentFrassForumsDonateHelp
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

Registration is open for the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

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

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


Previous events
TaxonomyBrowseInfoImagesLinksBooksData
Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Aschiza" » Platypezoidea » Flat-footed Flies (Platypezidae) » Callomyiinae » Grossoseta » Grossoseta pacifica
Photo#457254
Flat-footed Fly - Grossoseta pacifica - male
Copyright © 2010 Stephen Luk

Flat-footed Fly - Grossoseta pacifica - Male
Two Lakes Park, Seward, Alaska, USA
August 20, 2010
Size: 2.8 mm
Grossoseta pacifica (Kessel). This West Coast species is characterized by wing venation (dm-cu present, M1+2 branched, cup longer than A1), medial acrostichal bristles and a strong anteroventral bristle near the base of the male fore femur(1).
tag · login or register to post comments
Contributed by Stephen Luk on 21 September, 2010 - 11:25am

Question about Grossoseta pacifica
So I came across pictures of G. pacifica at this website (https://www.zoology.ubc.ca/~biodiv/entomology_archive/Diptera/Platypezidae/) and they do not look like this. Is this a male/female disparity or are one othese sources incorrect?
… Nathan Mansor, 20 January, 2022 - 2:05pm login or register to post comments

 
UBC is incorrect
It seems that UBC is wrong on this one, the wing diagrams present in the original description of this species match the photos on Bugguide and the drawings in Manual of Nearctic Diptera but not the UBC specimen. Here is a link I found to the original paper: https://digitalcollections.usfca.edu/digital/collection/p15129coll11/id/517 (Needs to be downloaded to see the diagram)
… Bennett Grappone, 9 December, 2022 - 8:16pm login or register to post comments

Moved
Moved from Flat-footed Flies. Thank you Stephen for adding so many flies lately.
… Keith Bayless, 21 September, 2010 - 12:14pm login or register to post comments

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2024 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Plant Pathology, Entomology and Microbiology at Iowa State University logo

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact