Insect of the Week: Palpadas

Adapted from pages 120-121 of Field Guide to the Flower Flies of Northeastern North America

Palpadas are a distinctive New World genus of flies, generally resembling Eristalis, but with a characteristic color pattern consistent throughout most of the species in the genus. The larvae are filter feeders in aquatic environments. There are 83 valid species, only four of which make it into our area.

The Palpada vinetorum is typically 10-13.5mm in length, with a pollinose face and a yellow medial stripe. Their wings are partly microtrichose apically. These flies are fairly common, with flight times in early June through mid-October. Like other Palpada species in our area, this species may be migratory. Flowers visited include Baccharis, Gymnosperma, Lobularia, Miconia, Serjania, and Solidago.

Field Guide to the Flower Flies of Northeastern North America
By Jeffrey H. Skevington, Michelle M. Locke, Andrew D. Young, Kevin Moran, William J. Crins, and Stephen A. Marshall

This is the first comprehensive field guide to the flower flies (also known as hover flies) of northeastern North America. Flower flies are, along with bees, our most important pollinators. Found in a varied range of habitats, from backyard gardens to aquatic ecosystems, these flies are often overlooked because many of their species mimic bees or wasps. Despite this, many species are distinctive and even subtly differentiated species can be accurately identified. This handy and informative guide teaches you how.

With more than 3,000 color photographs and 400 maps, this guide covers all 416 species of flower flies that occur north of Tennessee and east of the Dakotas, including the high Arctic and Greenland. Each species account provides information on size, identification, abundance, and flight time, along with notes on behavior, classification, hybridization, habitats, larvae, and more.

Summarizing the current scientific understanding of our flower fly fauna, this is an indispensable resource for anyone, amateur naturalist or scientist, interested in discovering the beauty of these insect.

This post is part of a series, explore additional posts here<< Insect of the Week: the American DaintyInsect of the Week: Laetodon >>