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Flies That Fight (22) More files... by Dr. Mark W. Moffett
With the crash of antlers and horns, male antlered flies wage fierce battles for the right to mate with females of choice. As with larger members of the animal kingdom, Darwinian theories of sexual selection are clearly demonstrated among these tiny creatures no larger than a thumbnail. Male flies have evolved eleborate branching antlers and unwieldy horns to attract the attention of potential mates. The more impressive the headgear, the better the chance a male has to breed. Dr. Mark W. Moffett gets eye-level with these flies to record their battles, the winners and losers.

Text available by Dr. Mark W. Moffett
Goat Fly (Phytalmia mouldsi) males clashing antlers while fighting, Queensland, Australia  -  Mark Moffett
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00125180 Goat Fly (Phytalmia mouldsi) males clashing antlers while fighting, Queensland, Australia© Mark Moffett
Stag Fly (Phytalmia cervicornis) two males from adjacent territories approach for battle, Papua New Guinea  -  Mark Moffett
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00125164 Stag Fly (Phytalmia cervicornis) two males from adjacent territories approach for battle, Papua New Guinea© Mark Moffett
Stag Fly (Phytalmia cervicornis) small male has only small knobs instead of full antlers, Papua New Guinea  -  Mark Moffett
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00750389 Stag Fly (Phytalmia cervicornis) small male has only small knobs instead of full antlers, Papua New Guinea© Mark Moffett
Stag Fly (Phytalmia cervicornis) female watches as two males prepare to fight, Papua New Guinea  -  Mark Moffett
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00125167 Stag Fly (Phytalmia cervicornis) female watches as two males prepare to fight, Papua New Guinea© Mark Moffett
Stag Fly (Phytalmia cervicornis) males battling, Papua New Guinea  -  Mark Moffett
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00125166 Stag Fly (Phytalmia cervicornis) males battling, Papua New Guinea© Mark Moffett
Stag Fly (Phytalmia cervicornis) pair mating, connected by her oviscape, Papua New Guinea  -  Mark Moffett
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00125168 Stag Fly (Phytalmia cervicornis) pair mating, connected by her oviscape, Papua New Guinea© Mark Moffett
Stag Fly (Phytalmia cervicornis) pair mating, connected by her oviscape, Papua New Guinea  -  Mark Moffett
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00125169 Stag Fly (Phytalmia cervicornis) pair mating, connected by her oviscape, Papua New Guinea© Mark Moffett
Stag Fly (Phytalmia cervicornis) mated female unsheathes her ovipositor to lay eggs while, the male guards and watches, Papua New Guinea  -  Mark Moffett
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00125170 Stag Fly (Phytalmia cervicornis) mated female unsheathes her ovipositor to lay eggs while, the male guards and watches, Papua New Guinea© Mark Moffett
Stag Fly (Phytalmia cervicornis) female lays her eggs as the male keeps watch, Papua New Guinea  -  Mark Moffett
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00125172 Stag Fly (Phytalmia cervicornis) female lays her eggs as the male keeps watch, Papua New Guinea© Mark Moffett
Stag Fly (Phytalmia cervicornis) female laying eggs, Papua New Guinea  -  Mark Moffett
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00125173 Stag Fly (Phytalmia cervicornis) female laying eggs, Papua New Guinea© Mark Moffett
Moose Fly (Phytalmia alcicornis) has antlers so large that they may hinder the ant's activities, Papua New Guinea  -  Mark Moffett
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00125174 Moose Fly (Phytalmia alcicornis) has antlers so large that they may hinder the ant's activities, Papua New Guinea© Mark Moffett
Moose Fly (Phytalmia alcicornis) has antlers so large that they may hinder the ant's activities, Papua New Guinea  -  Mark Moffett
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00125175 Moose Fly (Phytalmia alcicornis) has antlers so large that they may hinder the ant's activities, Papua New Guinea© Mark Moffett
Goat Fly (Phytalmia mouldsi) male flies eye to eye as they guard females using oviposters to deposit fertilized eggs, Queensland, Australia  -  Mark Moffett
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00125188 Goat Fly (Phytalmia mouldsi) male flies eye to eye as they guard females using oviposters to deposit fertilized eggs, Queensland, Australia© Mark Moffett
Goat Fly (Phytalmia mouldsi) male in courtship posture, Queensland, Australia  -  Mark Moffett
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00125177 Goat Fly (Phytalmia mouldsi) male in courtship posture, Queensland, Australia© Mark Moffett
Goat Fly (Phytalmia mouldsi) professor Gary Dodson adds extensions onto a male's antlers to see if this increases his success in battle, Ball State University, Indiana  -  Mark Moffett
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00125192 Goat Fly (Phytalmia mouldsi) professor Gary Dodson adds extensions onto a male's antlers to see if this increases his success in battle, Ball State University, Indiana© Mark Moffett
Stalk-eyed Fly (Cyrtodiopsis whitei) has its eyes positioned at the end of long stalks much like Hammerhead Sharks, Brunei, Borneo  -  Mark Moffett
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00125195 Stalk-eyed Fly (Cyrtodiopsis whitei) has its eyes positioned at the end of long stalks much like Hammerhead Sharks, Brunei, Borneo© Mark Moffett
Stalk-eyed Fly (Cyrtodiopsis whitei) has its eyes at the tips of long stalks much like Hammerhead Sharks, Brunei, Borneo  -  Mark Moffett
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00125196 Stalk-eyed Fly (Cyrtodiopsis whitei) has its eyes at the tips of long stalks much like Hammerhead Sharks, Brunei, Borneo© Mark Moffett
Stalk-eyed Fly (Cyrtodiopsis whitei) two males fighting near food, Gombak, Peninsular Malaysia  -  Mark Moffett
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00125207 Stalk-eyed Fly (Cyrtodiopsis whitei) two males fighting near food, Gombak, Peninsular Malaysia© Mark Moffett
Stalk-eyed Fly (Cyrtodiopsis whitei) two males in a face-off, Gombak, Peninsular Malaysia  -  Mark Moffett
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00125204 Stalk-eyed Fly (Cyrtodiopsis whitei) two males in a face-off, Gombak, Peninsular Malaysia© Mark Moffett
Stalk-eyed Fly (Teleopsis sp) females in a single male's harem gather on rootlets near streams, Malaysia  -  Mark Moffett
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00125203 Stalk-eyed Fly (Teleopsis sp) females in a single male's harem gather on rootlets near streams, Malaysia© Mark Moffett
Stalk-eyed Fly (Cyrtodiopsis whitei) pair mating, South Africa  -  Mark Moffett
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00125201 Stalk-eyed Fly (Cyrtodiopsis whitei) pair mating, South Africa© Mark Moffett
Stalk-eyed Fly (Cyrtodiopsis whitei) males confront each other, South Africa  -  Mark Moffett
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00125200 Stalk-eyed Fly (Cyrtodiopsis whitei) males confront each other, South Africa© Mark Moffett
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