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

Family Ptychopteridae - Phantom Crane Flies

Phantom Crane Fly - Bittacomorpha clavipes Phantom Crane Fly - Bittacomorpha clavipes Phantom Crane Fly - Bittacomorpha clavipes Phantom Crane Fly - Bittacomorpha clavipes Phantom Crane Fly - Bittacomorpha clavipes BG1773 C8149 - Bittacomorpha clavipes - male Ptychopteridae larvae Crane Fly - Ptychoptera quadrifasciata - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Nematocera" (Non-Brachycera))
Infraorder Ptychopteromorpha
Family Ptychopteridae (Phantom Crane Flies)
Numbers
Nearctica.com and Arnett, p. 862 (1) list 3 genera in family: Bittacomorpha (2 spp) Bittacomorphella (4 spp), and Ptychoptera (11 spp.) About twelve genera worldwide.
Identification
Medium-sized flies with long legs, slow flight, esp. in Bittacomorpha, the genus most easily observed due to its slow flights.
Habitat
Near ponds, wetlands
Season
Summer
Life Cycle
Larvae are detritivores in mud of wetlands. Bittacomorpha clavipes, a common species of eastern North America, is seen flying slowly at eye-level, often in open areas. This sure looks like some sort of sexual display.
Print References
Arnett, p. 862 (1)
Internet References
Family Ptychopteridae--Phantom Crane Flies--Insects of Cedar Creek

From Paul Beuk -- http://www.diptera.info
Tricky!
It is not always easy to separate them, indeed. After a while you get the jizz, but there are a few characters. The suture on the mesonotum of the Tipulidae is V-shaped, in the Ptychopteridae it is U-shaped. The latter is nicely visible in the species from Japan given here:

Helpful in the field may sometimes be that the antennae in Ptychopteridae are often relatively longer, slender and directed upwards or even backwards (as in the picture above). In Ptychopteridae, too, there usually is a cluster of cross-veins close together (again, see picture above, not visible in the linked image because of the black wing marking) which is often not the case in Tipulidae.

One of the official characters in the presence of a short side-branch on the stalk of the halter in the Ptychopteridae. That is (as far as I know) not found anywhere else in the Diptera.

http://www.diptera.info
… Paul Beuk, 7 March, 2005 - 3:24pm

Comments moved to guide
I moved these comments to the guide.