Leptotarsus testaceus
This record describes Leptotarsus testaceus (species). Recorded family: Tipulidae. Recorded order: Diptera.
Identification and Appearance
abdomen greatly elongated in both sexes Uncommon
Identification notes
abdomen greatly elongated in both sexes
Classification
Habitat and Range
Habitat
adults hang from tree branches near rapidly flowing streams in cool, shaded woods; larvae are aquatic, living in sand or gravel in the streambed
Geographic Range
e. US (ME-TN-FL)
Seasonal Activity
Adults in Jul in PA
Additional species information
Species notes from the sources
Etymology: Leptotarsus (Longurio) testaceus (Loew 1869)
About Flies: the wider group
Order-level background for Diptera, the group containing Leptotarsus testaceus. Species-specific details appear above.
Group overview
Diptera includes over 150,000 described species of flies, mosquitoes, and midges. Mosquitoes are the deadliest animal on Earth (CDC). Malaria alone causes ~249 million cases and over 608,000 deaths annually, mostly children under 5 (WHO). Vector-borne diseases account for over 17% of all infectious diseases, causing 700,000+ deaths per year.
Ecological role of the group
Despite their disease impact, flies are critical decomposers and pollinators. Hoverflies alone pollinate hundreds of crop and wildflower species. Flies are also the primary food source for many birds, bats, and fish. Forensic entomology relies heavily on fly species for crime scene analysis.
Economic and practical significance of the group
In the U.S., vector-borne disease cases tripled between 2004-2016, with over 640,000 cases reported in that period (CDC). Tickborne diseases doubled from 22,000 to 48,000 annual reports. Globally, mosquito-borne diseases cost billions in healthcare and lost productivity.
Recorded sources for this group: WHO, CDC, PNAS. Imported estimates may describe particular regions or reporting periods.
Photos of Leptotarsus testaceus (5)
Photo credits: Contributed by tom murray; Additional contributions by ceiseman , v belov
Frequently Asked Questions About Leptotarsus testaceus
What is Leptotarsus testaceus?
Leptotarsus testaceus is a species in the family Tipulidae, within the order Diptera.
How big is Leptotarsus testaceus?
abdomen 50-60 mm; larvae among two largest crane fly larvae in eastern streams
How do you identify Leptotarsus testaceus?
abdomen greatly elongated in both sexes
Where is Leptotarsus testaceus found?
| Feature | Details |
|---|---|
| Habitat | adults hang from tree branches near rapidly flowing streams in cool, shaded woods; larvae are aquatic, living in sand or gravel in the streambed |
| Range | e. US (ME-TN-FL) |
When is Leptotarsus testaceus active?
Leptotarsus testaceus: seasonal activity - Adults in Jul in PA.