Apparently recent, despite the bone-dry conditions. Bizarre.
How's that for a terrible photo...
Single adult, approximately 27 cm long. Body slim, not too chunky. Upper body color dark brown with copper-colored, irregular network of splotches. Fully eyed and actively moving from lights.
Located approximately 240 m inside entrance of disused tunnel under an abandoned marble quarry in access-controlled private conservation tract near Davenport, CA. Elevation approximately 128 m.
Floor of tunnel has perennial stream with discharge varying from approximately 3 l/sec. autumn low flow to El Nino flood flows of approximately 2700 l/sec.
Salamander was in shallow pool with rotting redwood mine timbers and large volume of iron bacteria mats as well as root mats of douglas fir(?) growing down through soil-clogged solution passages approximately 20-30 m below quarry floor. Temperature approximately 13.3°C.
The mega-flock that has been hanging around near shore for the last month.
Many mating pairs of the bug on a rock. The insect has brown wings with bright red body which is hidden under the wings. The red color is visible when the insect is flying. The matings lasted more than 12 min.