320 MICHIGAN SURVEY, 1908. 



Psamiiioplillu sp. (Det. T. & C). One specimen from rock clearing 

 near outlet of SJskowit lake (V, 9) (215). 



Ccropalidae. 



Eniiipiis aincrirmnis P.'il-Beauv. (Det. T. & C). One specimen (235) 

 captured with a specimen of Lycosa kochi Keys. (Det. Banks). The 

 wasp w;is hacking over the ground, dragging the spider, at brief in- 

 tervals it dropped its prey and ran rapidly back and forth looking for 

 its hole. It apparently had a general idea of the direction in which 

 the nest lay but had to Avalk right to it in order to be certain of its 

 location. Even a couple of centimeters was not close enough. Having 

 found the nest the wasp searched in the same way for the spider and 

 Avas backing away with it in a direct line for the hole when both were 

 captured. 



Geogra]i]iic range: Delia Torre gives "United States." It was de- 

 scribed by PalisotrBeauvois, 1811, p. 117. Peckham and Peckham, 1898, 

 pp. 125-1G6, describe the labors of several species belonging to this 

 group and call them "The Spider Kavishers." 



• 



Vespidac. 



Vespa (lidhoJica Saussure. (Det. T. & C). One specimen about camp 

 clearing at Eock Harbor (16fi). Described by Saussure, 1853, p. 

 138. Occurs fairly common throughout the eastern United States and 

 Canada. There have been many errors in determining species of this 

 group so that one can hardly state the distribution of any species. 



Eu})iUiHlae. 



Ancistroccnis capra Sauss. (Det. T. & C). One taken about camp 

 at Rock Harbor (133). 



Geographic range: Saussure 1857, p. 273. Known to occur in 

 northern United States and eastern Canada. 



Aiivisiroccnis pcrtinax Sauss. (Det. T. & C). Two on flowers of 

 Heraclftiiii lanatinn in camp clearing at Eock Harbor (105). This 

 species may be a true Odi/ncrus. All of this group are predaceous and 

 these probably store their nests with caterpillars. Their habits are 

 varied, some boring in one plant or substance and others using old 

 burrows. 



Geographic range : Saussure, 1S5G, p. 216. Known from northern 

 and eastern United States and Canada. 



EiiDiciics sp. (Det. T. & C). One in Cladonia clearing behind cam]) 

 at Siskowit Bay (21)1). This genus are the so-called "jug-makers" or 

 "mason-was]is'" and store their nests with small caterpillars. 



' For])iind€C. , 



Formica sp. (Det. I'ergande). One specimen in camp clearing at 

 Siskowit Bay (231). 



Cainpoiiotiis priinsi/hxiiiiciis Dcgcer. (Det. I'ergande). One from 

 Station IV, 1 (130), another found ninning over sniootJi sand bleach at 

 head of Gonglomeyate bay (31) ; one at camii at Rock Harbor (lOD 



