Myrmicinae: key to genera, couplet 17

Myrmicinae: key to genera couplet 17
Key: modified from Wheeler & Wheeler (1963), Hölldobler & Wilson (1990), Bolton (1994)

Taxa remaining

Aphaenogaster
Messor*#
Pheidole

Figure . Myrmicinae: Pheidole pilifera

Figure . Myrmicinae: Apahenogaster tennesseensis

17.Antenna terminating in a 3 segmented club; palp formula 3,2 or 2,2; workers dimorphic (majors with disproportionately large heads and minors with regularly proportioned heads) (collected in all Midwestern states) (2a 5a 6b 8b 9a)
...Pheidole

Antenna not terminating in a conspicuous club; palp formula 4,3 or 5,3; workers may be weakly polymorphic, but are not dimorphic.
...18

Subfamily: Genus: P. bicarinata Mayr MN

Myrmicinae Pheidole P. bicarinata vinelandica Mayr

P. desertorum Wheeler, W.M.

P. longula Emery (ND)=P. bicarinata longula;

P. morrisi Forel

P. pilifera pilifera (Roger) MN, TC, Cedar creek

P. pilifera coloradensis Emery

P. senex Gregg

P. sitarches Wheeler, W.M.

P. sitarches rufescens Wheeler, W.M.

Notes: harvest; host of thief ant, dimorphoric worker caste=solider, ? robber ant as Forelius sp. (Dolichoderinae)

Pheidole pilifera

Genus Pheidole Westwood §j¿YVDƒ›
amia Forel, 1912: Chou & Terayama, 1991: 78; - Bolton, 1995: 316. ™¸¨¸§j¿YVD
ernesti Forel, 1912: Chou & Terayama, 1991: 78; - Bolton, 1995: 321. º/•ß§j¿YVD
fervens Fr. Smith, 1858: Chou & Terayama, 1991: 79; - Bolton, 1995: 321. ºˆØP§j¿YVD
funkikoensis Wheeler, 1929: Chou & Terayama, 1991: 79; - Bolton, 1995: 321. æƒi_¥Ú§j¿YVD
fervens dolenda Forel, 1912: Bolton, 1995: 321. ´Ã™F§j¿YVD
fervens soror Santschi, 1937: Bolton, 1995: 321. §ˆ´z§j¿YVD
megacephala (Fabricius, 1793): Chou & Terayama, 1991: 79; - Bolton, 1995: 325; - Tang et al., 1995:ºˆ±a§j¿YVD
noda flebilis Santschi, 1937: Bolton, 1995: 326. ¨i§j¿YVD
noda formosensis Forel, 1913: Bolton, 1995: 326. §j™L§j¿YVD
rinae tipuna Forel, 1912: Chou & Terayama, 1991: 79; - Bolton, 1995: 329. O=§j¿YVD
sauteri Wheeler, 1909: Chou & Terayama, 1991: 79; - Bolton, 1995: 329. ™Ú§Û§j¿YVD
taivanensis Forel, 1912: Chou & Terayama, 1991: 79; - Bolton, 1995: 331. ªODW§j¿YVD

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17.Antenna terminating in a 3 segmented club; palp formula 3,2 or 2,2; workers dimorphic (majors with disproportionately large heads and minors with regularly proportioned heads) (collected in all Midwestern states) (2a 5a 6b 8b 9a)	...Pheidole
Antenna not terminating in a conspicuous club; palp formula 4,3 or 5,3; workers may be weakly polymorphic, but are not dimorphic.	...18

Subfamily:	Genus:	P. bicarinata Mayr	MN
Myrmicinae	Pheidole	P. bicarinata vinelandica Mayr
		P. desertorum Wheeler, W.M.
		P. longula Emery (ND)=P. bicarinata longula;
		P. morrisi Forel
		P. pilifera pilifera (Roger)	MN, TC, Cedar creek
		P. pilifera coloradensis Emery
		P. senex Gregg
		P. sitarches Wheeler, W.M.
		P. sitarches rufescens Wheeler, W.M.