Bibliography and Citations
.
1996. .
1997. .
1990. .
1995. .
1989. .
1990. .
1992. .
1994. .
1989. .
1992. .
1997.
Concern bloomming for rare wildflowers. 1986. Sunday Times Union. 13 April
.
1986. .
1996. [Species profile:] Andrena (Andrena) aculeata (LaBerge, 1980) (Andrenidae: Andreninae). :2. Available from http://www.xerces.org/wp-content/uploads/2008/09/andrena_aculeata.pdf
.
2005. [Species profile:] Hoplitis orthognathus (Griswold, 1983) (Megachilidae: Megachilinae: Osmiini). :3. Available from http://www.xerces.org/wp-content/uploads/2008/09/hoplitis_orthognathus.pdf
.
2005. .
1993. [Species profile:] Perdita wyomingensis sculleni (Cockerell, 1922) (Andrenidae: Panurginae: Perditini). :2. Available from http://www.xerces.org/wp-content/uploads/2008/09/perdita_wyomingensis_sculleni.pdf
.
2005. .
1992. [Species profile:] Hesperapis kayella (Melittidae: Dasypodainae: Dasypodaini). :2. Available from http://www.xerces.org/wp-content/uploads/2008/09/hesperapis_kayella.pdf
.
2005. [Species profile:] Perdita salicis euxantha (Cockerell, 1896) (Andrenidae: Panurginae: Perditini). :2. Available from http://www.xerces.org/wp-content/uploads/2008/09/perdita_salicis_euxantha.pdf
.
2005. .
1992. .
1992. .
2005. .
1995. .
2003.