INSECUTOR INSCITI^ MENSTRUUS 169 



two from the ground, before bushes or the lower part of trees, 

 on the shaded side, but while the sunlight is still streaming 

 through. On two occasions at Camp Elwell the swarming was 

 noted, especially in one case, where the swarm was actually 

 in camp, over a little path cut through low pines. A second 

 flight occurs also early in the morning, continuing in the cool 

 parts of the woods as late as 8.30 a. m. 



Additional data are as follows : Tahoe City, California, 

 June 11-20, 1920 (H. G. Dyar) ; Summit, Placer County, 

 California, June 19-27, 1920 (H. G. Dyar) ; Gold Lake, 

 Sierra County, California, June 24, 1920 (H. G. Dyar) ; Lakes 

 Center Camp, Plumas County, California, June 22-29, 1920 

 (H. G. Dyar) ; Camp Elwell, Plumas County, California, June 

 23-July 15, 1920 (H. G. Dyar) ; Crater Lake, Oregon, July 

 28-30, 1920 (H. G. Dyar). 



Aedes (Heteronycha) fisheri Dyar. 



I stated the opinion (Ins. Ins. Mens., viii, 23, 1920) that 

 fisheri represented intrudens of the Canadian fauna. The 

 discovery of the male shows that the resemblance is super- 

 ficial, and that fisheri is really a distinct species of the punctor 

 group. The original locality of fisheri being given as "Lake 

 Tahoe," I spent some time searching various places at the 

 6,000 foot level, which is the level of the lake, but without 

 success. There is no place called "Lake Tahoe," the lake 

 itself being 70 miles in circumference. Later it appeared that 

 fi,shcri does not occur at this level, but 1,000 feet higher, at 

 the 7,000 foot level, as at Summit, Placer County. It is ap- 

 parent, therefore, that the labels attached by Dr. Fisher were 

 of a general nature only, and that he actually obtained the 

 specimens which became types at a higher level, not improb- 

 ably in Desolation Valley above Fallen Leaf Lake. Dr. Fisher 

 told me that he took the specimens at Tahoe Tavern (Ins. Ins. 

 Mens., V, 19, 1917) ; but I feel sure that his memory was at 

 fault in this instance. It is certain that my own collections 

 failed to disclose the species in this locality. 



Male. Palpi only slightly exceeding the proboscis, black, 

 v.'ith long black hairs on the last two joints. Mesonotum 



