Listrochelus koehlerianus

V. L. Wildermuth, at Koehler, N. Mex., July 3, 1914: Tonight there occurred a remarkable flight of this beetle. The air was full of them, and the roar, for it was more a roar than a buzzing, from them was wonderful. They were like several swarms of bees all in the air over one's head at once. Many came to the light of the tent, but the great majority of them seemed to be flying quite high. The flight lasted from about 8 until 9:30. The day previous had been rainy and heavy rains had fallen the past four days. July 13: This fight has continued to a greater or less extent each night since the first record-last night there were millions of the beetles in the air, and at times one could hardly remain out of doors because of them hitting the person in the face. Tent roofs and sides were fairly covered with them, and a large handful at a time could be picked up. I am told that many are found in the ground of the gardens hereabouts, and in fact I saw a great many turned up in a garden at the packing house. There are no trees closer than 3 miles from camp, and these are limited to scrub oak and several species of pine. The range around is covered with grama grass and weeds. Two classes of the latter predominate, namely Gutierrezia sp. (brown-weed) and Artemesia frigida (wormwood, or sage brush). Many native lupines abound. The soil is mostly a sandy clay loam. An unusual amount of moisture has fallen this season and it has been well distributed. To date it has rained 29 out of 59 days since we arrived in camp.