Recent Additions

I have discovered that the list of Minnesota spiders is very dynamic with hypothetical species being confirmed and new species added quite regularly (at least at this point).  Below you will find the most recent changes.

16 July 2016–First confirmed record of Gonatium crassipalpum Bryant, 1933.   This species was formerly listed as hypothetical.  A female was collected during a bioblitz in the Sax-Zim Bog in St. Louis County and can be viewed on BugGuide here.  This is the 471st confirmed species in Minnesota.  During the same bioblitz, a male Dictyna brevitarsa Emerton, 1915 was collected by shaking a tamarack.  This species was also on the hypothetical list and represents the 472nd confirmed species for Minnesota.  The specimen can be viewed on BugGuide here.

24 June 2016–First confirmed record of Clubiona johnsoni Gertsch, 1941.  This species was listed as hypothetical on earlier versions of the checklist.  A female was collected during a bioblitz with the U.S. Fish and Wildlife Service at the Louisville Swamp Unit of the Minnesota Valley National Wildlife Refuge.  The specimen can be viewed on BugGuide here.  This represents the 470th confirmed species for Minnesota.

17 June 2016–First confirmed records of Lyssomanes viridis (Walckenaer, 1837).  A female specimen was found stowed away in a rainfly after a vacation to the southeastern U.S.  A picture of the epigynum can be found on BugGuide here.  This is the 469th confirmed species for Minnesota.

23 December 2015–First confirmed records of Habronattus cuspidatus Griswold, 1987 and Pelegrina exigua (Banks, 1892).  Both were previously listed as hypothetical and both were found by Dr. William Ehmann of Seattle University during jumping spider surveys around the state during summer 2015. Dr. Ehmann graciously shared his data with me.  These represent the 467th and 468th confirmed species in Minnesota

15 July 2015–First confirmed record of Enoplognatha ovata (Clerck, 1757) collected from a woodland at the Aurora Wildlife Management Area near Bixby, MN in Steele County.  This non-native species continues to expand its range in North America.  Both male and female were collected and can be viewed on BugGuide here and here. This represents the 466th confirmed species in Minnesota.

10 July 2015First confirmed record of Pirata montanoides Banks, 1892 collected from a woodland on the south side of Rice Lake near Winnebago, MN in Faribault County.  Both male and female were collected and can be viewed on BugGuide here and here.  This represents the 465th confirmed species in Minnesota.

10 July 2015First confirmed record of Misumessus oblongus (Keyserling, 1880) from Faribault County.  This specimen was found while sweeping grasslands at the Blue Earth River Aquatic Management Area west of Winnebago, MN.  See BugGuide to view the specimen.  This represents the 464th confirmed species in Minnesota.

10 July 2015–First confirmed record of Phrurotimpus borealis (Emerton, 1911) from Faribault County.  This species was on my list of hypotheticals.  This specimen was collected in a small woodland on the south side of Rice Lake near Winnebago, MN.  See BugGuide to view the specimen.  This represents the 463rd confirmed species in Minnesota.

29 June 2015–First confirmed record of Erigone blaesa Crosby & Bishop, 1928 from Olmstead County.  This specimen was collected while camping at Chester Woods County Park east of Rochester.  See BugGuide to view the specimen.  This represents the 462nd confirmed species in Minnesota.

12 June 2015–I always thought that this could happen during the course of this project.  I collected a spider during a bioblitz with the USFWS at the Jessenland Unit of the Minnesota Valley National Wildlife Refuge.  It keyed out to Arctachaea in Spiders of North America but appears to be an undescribed species!  See BugGuide to view the specimen.  This is the 461st confirmed species in Minnesota…now it just needs to be formally described.

10 June 2015–First confirmed record of Erigone dentosa O. P.-Cambridge, 1894 from Blue Earth County.  The specimen was collected by one of the students participating in our summer science camp at Bethany Lutheran College!  See BugGuide to view the specimen.  This is the 460th confirmed species in Minnesota.

29 May 2015– First confirmed record of Tapinocyba simplex (Emerton, 1882) from Blue Earth County; this was a serendipitous find on a picnic table at a party.  See BugGuide to view the specimen.  This is the 459th confirmed species in Minnesota.

27 May 2015 — First confirmed record of Piratula canadensis (Dondale & Redner, 1981) from Renville County.  This species was not on my list of hypotheticals but should have been.  See BugGuide to view the specimen.  This is the 458th confirmed species in Minnesota.  On the recommendation of Robin Leech, I also added two hypothetical species to the list: Arctobius agelenoides (Emerton, 1919) and Titanoeca nigrella (Chamberlin, 1919).

11 May 2015 — First confirmed record of Philodromus praelustris  Keyserling, 1880 from Le Sueur County.  This species was on my list of hypotheticals.  See BugGuide to view the specimen.  This is the 457th confirmed species in Minnesota.