Subgroup Anoplius


   Females 

 

1  Either (a) the hind coxae conspicuously silvery-sericeous above, or (b) the front basitarsus weakly spined, the spines of the upper row minute, either very short or longer but setiform, or (c) the claws of each pair unequal, the inner larger than the outer, both more or less bifid

2

 

1 None of the above conditions true; hind coxae never at all silvery; front basitarsus fairly strongly spined, the upper row of three spines which are usually half or more as long as the width of the tarsus, the lower row of three or four spines which are in part, at least, as long as the width of the tarsus; claws normal, dentate and of equal size

4

 

2  Basal four segments of all the tarsi distinctly flattened on one side, the tarsus thus more of less semicircular in cross-section; front basitarsus ridged along the upper, nearly obsolete, row of spines; pronotum not sharply angulate behind, nearly arcuate

 

Anoplius depressipes Banks 1919

 

2 Tarsi normal, circular in cross-section; front basitarsus not ridged along the upper spine-row; pronotum distinctly angulate behind

3

 

3  Claws bifid, the tooth sloping outward, the claws of each pair unequal, the inner claw much larger than the outer; spines beneath the apical tarsal segments rather long; stigma rather large

 

Anoplius ithaca Banks 1912

 

3 Claws normal, the tooth short and erect, the inner claws not larger than the outer; stigma small

 

Anoplius virginiensis Cresson 1867

 

 

4  Length 7.5 (5-10) mm; inner orbits barely if at all convergent above; third transverse cubital vein strongly arched, the third submarginal cell varying from triangular to fairly wide above; pubescence dark, obscurely violaceous

 

Anoplius imbellis Banks 1944

 

4 Length 12 (8.5-16) mm; inner orbits convergent above, the upper interocular distance usually about .9 the lower; third submarginal cell never completely triangular; pubescence variable, sometimes strongly bluish

5

 

5  Mesopleura not hairy, propodeum slightly to moderately hairy; spines of the upper row on the front basitarsus strong, usually about as long as the width of the tarsus

 

Anoplius illinoensis Robertson 1901

 

5 Mesopleura with at least a few prominent erect hairs; head, thorax, and propodeum in general more hairy than above; spines of the upper row on the basitarsus shorter, at most a little more than half as long as the width of the tarsus

 

Anoplius ventralis ventralis Banks 1910

 


 

   Males

 

1  Abdominal sternites without dense brushes of long hairs, either almost smooth, or with brushes of less dense, short hairs; last segment of front tarsus slightly produced on the inner margin, this segment widest about two-thirds the distance from the base, more than 1.5 times as long as broad

 

2

 

1 Sternites 4 and 5 with dense brushes of rather long hairs; last segment of front tarsus more strongly produced on the inner margin, the segment widest about midway, and only about 1.5 times as long as broad

3

 

2  Stigma very large, at least a third as long as the marginal cell; subgenital plate very broad, folded roof-like beneath the apex of the abdomen; parameres of genitalia very short

 

Anoplius ithaca Banks 1912

 

2 Stigma smaller, only a small fraction of the length of the marginal cell; subgenital plate not as broad, though sometimes of moderate breadth and somewhat elevated medially; parameres longer

Anoplius virginiensis Cresson 1867

 

3  Subgenital plate but slightly raised medially, the sides tapering gradually, the apex narrowly rounded and fringed with a rather even row of bristles; emargination of sternite 6 broadly U-shaped

 

Anoplius imbellis Banks 1944

 

3 Subgenital plate more of less keeled, the apex subacute, somewhat bushy-haired; emargination of sternite 6 more narrow, somewhat V-shaped

4

 

4  Scape and propodeum not or only very slightly hairy; sternite 3 with at most a few setae; digitus volsellaris more or less triangular apically, the inner margin with a group of setae which are directly mesad

 

Anoplius illinoensis Robertson 1901

 

4 Scape and propodeum both rather hairy; sternite 3 frequently with numerous hairs, sometimes forming a brush; digiti somewhat spindle-shaped

Anoplius ventralis ventralis Banks 1910

 

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