Author Archives: David Maddison

It was fifty years ago today…

Fifty years ago today, Carl Hildebrand Lindroth’s revision of the Bembidion of Canada and Alaska was published; this was part 3 of his opus on the ground beetles of Canada and Alaska. This work is the basis of all that … Continue reading

Posted in Revising Bembidiina, Scientific Illustrations, Taxonomic Process | Tagged , , | 8 Comments

Zephyr

A zephyr is a soft, gentle breeze, derived from the Greek “zephuros”, meaning god of the west wind.  It is one of my favorite words, in part because I find the word “zephyr”  beautifully shaped, in part because it reminds … Continue reading

Posted in Musings | 1 Comment

Shutting down Lionepha lummi

I am quite sure that this is the habitat of Lionepha lummi.  The picture below shows American Camp, on San Juan Island, not far from Friday Harbor, in Washington state.  And I think tomorrow would be a perfect day to … Continue reading

Posted in Fieldwork, Revising Bembidiina | Tagged , | 2 Comments

BotW: Andinodontis

Andinodontis is a genus of small ground beetles that lives in the Andes of South America. Here’s Andinodontis muellermotzfeldi from near Baeza, Ecuador; it’s a bit less than 2.5 mm in length.  These beetles are part of an enigmatic lineage of … Continue reading

Posted in Beetle of the Week | 2 Comments

Rainy-season beetles

The rains have returned to the Pacific Northwest.  During the last few days a rain-drop symphony has been playing in my house in the woods, and the douglas fir and oaks are weeping in thanks for fall’s arrival after a … Continue reading

Posted in Fieldwork, Revising Bembidiina | Tagged , , | 1 Comment

My favorite beetle illustration

Today I was reminded of my favorite illustration of a carabid beetle.  Here it is.  Drawn by my daughter, Julia, 21 years ago, when she was 4. Given the prominence of the area around the discal setae of the elytra, … Continue reading

Posted in Miscellany, Scientific Illustrations | 6 Comments

BotW: Cnemalobus

Cnemalobus is a genus of large carabids from southern South America.   Here’s one from Chile: One of the cool things about Cnemalobus is that they make noises (they stridulate) as the run:

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Who should be listed on collecting labels?

One of the questions that all collectors face is “what should I put on the label?”  From a time in which the only label on a specimen might be a gold dot, or simply “Canada”, we are now at a … Continue reading

Posted in Fieldwork, Taxonomic Process | Tagged , , | 1 Comment

Another surprise in Lionepha

Two days ago I had a post about an unexpected species of Lionepha in the Sierras, of which I became aware when I looked at a specimen that my graduate student John Sproul caught on the South Fork of Bishop … Continue reading

Posted in Revising Bembidiina, Taxonomic Process | Tagged , , , | 1 Comment

A surprise in Lionepha

In the late spring I was in the final stages of a manuscript about the genus Lionepha.  This paper will describe the new species I have mentioned earlier, describe the male of Lionepha chintimini for the first time, document DNA … Continue reading

Posted in Fieldwork, Revising Bembidiina, Taxonomic Process | Tagged , , , | 3 Comments