In May 2009 Norm Lavers and I and friends ventured to Panama in the canal zone and stayed at the Canopy Tower for five days. We shot many insects again and tried to image many robbers. It was the start of the rainy season and it was humid but did not rain often while we were there. The above robber was possibly the commonest species on the road down from the tower (Semaphore road). It looked awful similar to the species Senobasis corsair from Costa Rica. If it is in that genus then it is likely another species. This appears to be a male from Norm. Note the similar thoracic lines and the trim, long-legged form.

The rear angle shot of what looks like a female of the same species. Long dark legs and white sidewalls with the knob-tipped antenna. 

Compare with this smaller species from a different trail in the area. Looks remarkably related as well and looks female. Strongly marked orange legs however with the white central thoracic stripe and similar antenna. Dr. Fisher confirms this is another species of Senobasis, S. clavigera (Rondani).

And what surely must be the same species of Senobasis from Norm.

This was the first robber we saw in Panama. And Cheryl spotted it, so it became Cheryl's robber while we tried to chase down a shot. We did see it up in the canopy feeding and down along the road. Very difficult to shoot. Skittish. Dr. Fisher thinks this is Mallophora fairchildi. See the other Mallophora on the Costa Rican page that is distinctly different but similar to the species below.

And from the lowland trail at Old Gamboa road in the same area of Panama, this really does look like a Megaphorus. Though, there are no Megaphorus in CA. We presumed it was a Mallophora as well. Appears to be female with a nice bee kill. Dr. Fisher does confirm it is in this confusing Central American genus but is not the same as the M. fairchildi above.

And one of the most magnificent robbers we shot in the area. This was on the Plantation trail. Was about a 30 mm robber. Perching on the leaftops in the shaded trail area. Looks like a cross between a Diogmites and a Stenopogon but it is actually in Laphriinae. Dr. Fisher immediately recognized it from his past collections in Panama as Smeryngolaphria numitor Osten Sacken. There are only four species known from CA and three are undescribed from Costa Rica. This species was collected on Barro Colorado island in the past.

And the same species with a cranefly kill from the facial angle by Norm.

And an unknown species with long dark wings by Norm. Very small twig sitter. Very flat face and miniature proboscis. I will make a wild guess this is in the Atomosiini tribe of Laphriinae.  And Dr. Fisher confirms it is in that tribe and is Oidartis gibbum (Curran). Quite a speciose Central American genus. This species is in the group without the modified fancier sexual characters in the males and with the less complex sexual interactions.

And I am fairly sure this is the same individual.  

Costa Rican Robbers