Showing posts with label Peppersauce Canyon. Show all posts
Showing posts with label Peppersauce Canyon. Show all posts

Thursday, August 15, 2013

Where Nuns meet Witches

 Mantispid Climaciella brunnea
Some Batesian mimicry works well on me. Whenever I see a harmless (to me) mantispid in the exact colors of our most common paper wasp Polistes comanchus I am instictively careful of a powerful stinger - which the mantispid, a relative of ant lions,  just doesn't carry.

Climaciella brunnea and Polistes comanchus
On Tuesday I took Caroline and Martin, two young German scientists, into the field to look for this paper wasp mimic, the Mantispid Climaciella brunnea. I had found one last week in Madera Canyon on Desert Broom during the day, but Peppersauce Canyon on the north side of the Catalina Mountains (Pinal County, Arizona) is the only place where I knew them to show up reliably at the black light.

1 and 2 Climaciella brunnea, 3 Plega sp., 4 Mantispa sp., 5 Ant Lion  Brachynemurus sp, 6  Owlfly  Ululodes sp.

We  really got one single specimen, but at least it was a different color morph than the one from Madera Canyon.  We also got many more interesting Neuropterans - other mantispids like Plega and Mantispa and many ant lions and an owlfly.

Hyalophora columbia gloveri (Glover's Silkmoth),  Eupackardia calleta  (Calleta Silkmoth )
Strategus aloeus (Ox Beetle), Dynastes granti (Hercules Beetle)  
Peppersauce Canyon is one of my favorite collecting places and it lived up to my expectations. There were no other people except one Jeep driver slowly negotiating the rocky road, but lots of impressive insects.


But as the night went on the sheet completely filled up with moths. Mostly hundreds of small Twirler Moths and the Tigermoth Virbia ostenta and too many blister beetles in the genus Epicauta. (they got Martin's ankle)


Caroline and Martine braved the onslaught and coughed through a mist of dislodged moth scales, but I left to rather investigate the surroundings.


There is an old oak tree in a clearing that is bleeding sweet fermenting juice from many scars. When we first arrived we saw so many yellow jackets on the bark that Caroline mistook the location for a nest entrance. Now the still warm night air seemed loaded with the heavy yeasty fragrance of a brewery. Ants, beetles, moths and roaches were competing for room at the source of the fermenting juice. Big longhorn beetles rustling and chewing, click beetles pushing their way in, carpenter ants forcing ants of a smaller more agile species out of the way.
Even small, delicate moths claimed their spots against the sturdier beetles, their eye-shine eerily flashing back to my head light.
 
 Catocala perhaps delilah (Underwing Moth) and  Enaphalodes hispicornis (Oak Borer)
After a while a larger Underwing moth joined the feast. During the day these moths sleep on the bark of trees where they are extremely hard to spot due to their camouflage pattern. While fighting for its place at the seeping tree juice the moth showed its colors, aggressively flashing its wings at beetles and roaches.

Black Witch, Ascalapha odorata 
Then a huge dark shadow interrupted the beam of my flashlight. I thought a bat was swooping in to grab one of the intoxicated insects that showed neither fear nor caution. But the shadow descended - landed - and turned out to be a moth as well: a huge Black Witch. It was much larger than the big silk moths that we'd seen earlier. It's wingspan exceeded the length of my hand which is 6.5 inches.

Black Witch, Ascalapha odorata 
This witch was very tattered and old - telling a story of narrow escapes from bats and birds and survived monsoon storms. These moths were long believed to be all border crossers from Mexico, but by now freshly emerged specimens are found far north of the border, proving that many Black Witches are legal -  born US citizens.

(A word to explain 'Nuns' of the title: when I was a kid in Germany, we called Underwing Moths 'Nonne' - 'nun' in English - though the official name for the genus is Ordensband (after the colorful sash worn by ordained Catholics).



I think my friends from Berlin were as happy with their mantispid catch as I with my observations in the dark and mysterious forest.

Friday, July 22, 2011

Black Lighting in Peppersauce Canyon, Catalina Mountains

On the north side of the Catalina Mountains a service road connects the town of Oracle to the top of Mount Lemmon. Connecting may be the wrong term. None of my vehicles seems appropriate to negotiate the steep rocky, barely maintained road. The entrance to Peppersauce Canyon, however, is on the lower part of the road that is smooth and easy to drive. Last week Jeff Eble, a college from the entomology department, and two students asked me (and my black light) to join them on a collection trip. Jeff wants to study genetic shifts among isolated beetle populations of the sky islands, so he is mainly interested in flightless species that can't mingle as much as their more mobile counterparts.


Black lights, of course, draw the good fliers first. That evening, we were immediately inundated by hundreds of Phyllophaga vetula, a chunky, hairy June beetle. Scores of Anomala delicata followed soon after.



Soon a bristletail and a stick insect walked up, and a slim beige Mantis with surprisingly dark eyes, and a mantispid came to prey on 'our' bugs.


The most common Cerambycid was Methia mormona (top, middle), but we were also visited by a huge Prionus heroicus  (left), several delicately spotted Orwellion gibbulum arizonense  (right) and a tiny Sternidus decorus mMiddle, bottom). A number of Bycids in the the genera Aneflus and Oeme are still unidentified.

Weevils were represented by two Curculio spp (left). and the broadnose weevil Pandeleteius buchanani.


 Surprisingly several Sunburst Beetles Thermonectus marmoratus (right) and two Whirligig Beetles Dineutus sublineatus (left), all living in shallow ponds, showed up. We couldn't find any water close by, but the beetles are good fliers who often approach shiny surfaces like car roofs and lights.



The only carabids appearing in numbers looked like Selenophorus which we ignored because they are impossible to id. We also got several specimens of a tiny Bombadier Beetle that hopefully will be a new species for me. Jeff collected Lebia mimics of the Bombadier Beetles even though they do fly - he needs some control groups for his flightless stuff.



Walking along the trail with flash lights, we found two larger cerambycids, Enefalodes hispinicornis and a Prionid.  Both are good fliers, so I got them for my photo collection.



Jeff was happy with his collection of large flightless Darkling Beetles like Eleodes subnitens and longicollis on the trail, and Strongylium atrum (above) on tree trunks.



We also found several very attractively shaped Embaphion sp.  I hope to keep one of them alive and happy for the U of A Beetle festival on the 27th of September (Tucsonans, mark your calendars!).


Windscorpions (Solifugiae) were racing about at top speed, with Jeff in hot pursuit.


Under a rocky overhang an impressive  Cat-faced Orbweaver, Araneus illaudatus, was hanging out in her over 20 in wide net.



Meanwhile at the black light, interesting moths  had arrived: Clock-wise: Manduca rustica, Gerrodes minatea, Euclidia diagonalis, Syssphinx hubbardi, Datana sp.



While we were observing arthropods, fellow vertebrates were spying on us: A Woodhouse's Toad, two Gray Foxes and a gang of  Havelinas  took their turns.




Maybe we were set up right in the path of their evening rounds.