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Showing posts with label mexico. Show all posts
Showing posts with label mexico. Show all posts

Monday, October 8, 2012

new to science?

 Could it be new?

I took this shot of a gomphid along the river deep in the Batopilas Canyon on my recent trip to Mexico, it mystified me (admittedly that's not too unusual). It looked like a Stylurus but my reference list of the dragonflies of Chihuahua and Sinaloa (re-worked from one of Dennis Paulson's online publications) listed no species of that genus in the region.  When I got back home I sent the image to the very same Dennis Paulson - the North American odo-guru.

Dennis responded "It looks much like Stylurus olivaceus, but there are no records of that species from Mexico. The thoracic pattern is different enough, however, that I hesitate to call it olivaceus, especially as it would be a first record for the country. In addition, and this is probably even more important, the closest record of olivaceus is many hundreds of miles away (far from the US/Mexican border), so the probability of it being that species seems very low. There is a definite possibility of an undescribed species."

Now we just need someone to go and collect one so I can add it to my list! Although it has to be said we had to endure a rather tense roadside interview with some heavily-armed narco-gangsters to get to the site two week ago...

Thursday, October 4, 2012

horny


The semi-desert NW of Chihuahua was kind to us on the last day of the tour, whilst I looked out for birds one of the clients (thank you Ann) found no less than two species of horned-lizard for us. Above is the rather splendid Texan horned-lizard (Phyrnosoma cornutum) and below the rather more subtle round-tailed horned-lizard (Phyrnosoma modestum).


Wednesday, September 19, 2012

postcard from mexico

First day of the tour to northern Mexico included my first ever encounter with the unbelievable filigree skimmer (Pseudoleon superbus) an absolute stunner.