Subgroup Arachnophroctus


   Females 

 

1  Wings wholly deep fuliginous, violaceous; propodeum often somewhat hairy; clypeus sometimes emarginated; propodeum with a rather well-defined flattened or slightly concave posterior declivity

2

 

1 Wings varying from hyaline to moderately heavily infuscated, with a darker marginal band, at least the hind wings subhyaline basally; propodeum not noticeably hairy, except when the entire body is unusually hairy; clypeus not emarginated; propodeum with the declivity not or only indistinctly defined

3

 

2  Wholly black; antennae fairly long, segment 3 equal to from .65 to .95 times the upper interocular distance; front basitarsus with 3 comb-spines; postocellar line about equal to the ocello-ocular line

 

Anoplius relativus (Fox) 1893

 

2 Orange markings on second abdominal tergite (and sometimes more of the abdomen); antennae short for the genus, segment 3 equal to from .55 to .70 times the upper interocular distance; front basitarsus with from 3 to 5 (usually 4) comb-spines; postocellar line shorter than the ocello-ocular

Anoplius marginalis (Banks) 1910

 

3  Spines of the tarsal comb long, at least 1.5 times as long as the thickness of the tarsus, the spine at the apex of the basitarsus well over half the length of the second tarsal segment; propodeum with a strong median linear impression; first abdominal tergite with a median basal sulcus

 

4

 

3 Comb-spines very short, but little if any longer than the thickness of the tarsus, the one at the apex of the basitarsus not over one third the length of the second tarsal segment; propodeum and first abdominal tergite lightly if at all impressed

 

5

 

4  Mesosternum with small spiniform processes which project over the inner bases of the middle coxae; front broad, the middle interocular distance over .6 the transfacial distance; abdomen shining

 

Anoplius semirufus Cresson 1867

 

4 Mesosternum with processes short and broad, not spiniform; front more narrow, the middle interocular distance from .53 to .58 times the transfacial distance; abdomen not strongly shining

 

Anoplius apiculatus autumnalis (Banks) 1914

 

5  Abdominal tergites 2 and 3 with paired orange spots, separated by a thin line or more or less confluent medially, the abdomen otherwise black

 

Anoplius americanus americanus Beauvois 1805

 

5 Abdomen with a greater amount of rufous or orange coloration, the first tergite at least in part colored

 

Anoplius americanus juxtus (Cresson) 1865

 

 


 

   Males

 

1  Propodeum with a variable amount of dark erect hair; wings in general more heavily infuscated; hind femora strongly compressed; second and third transverse cubital veins usually not meeting above, the third submarginal cell 4-sided or subtriangular, rarely triangular or petiolate

 

2

 

1 Propodeum without erect hairs, or with only a few pale hairs; wings hyaline or subhyaline, with a fuscous marginal band; third submarginal cell usually triangular, often petiolate

3

 

2  Abdominal sternites 4 and 5 with dense brushes of erect hairs; digiti of genitalia with a group of very long, clubbed hairs on the disc

 

Anoplius relativus (Fox) 1893

 

2 Venter not more than slightly hairy; digiti without long clubbed hairs

Anoplius marginalis (Banks) 1910

 

3  Almost the entire body clothed with a coarse silvery or somewhat glaucous pubescence; clypeus at least 2 times as broad as high; venter without erect hairs; apex of digiti devoid of setae

4

 

3 Pubescence of the body very fine and delicate, though often in large part silvery; clypeus about twice as broad as high; venter with at least a few erect hairs; digiti setose to the apex

 

 

 

5

 

4  Antennae rather heavy, segment 3 less than 2.5 times as long as its greatest thickness; subgenital plate rounded apically

 

 

Anoplius apiculatus autumnalis (Banks) 1914

 

4 Antennae more slender, segment 3 more than 2.5 times as long as thick: subgenital plate pointed apically

 

 

Anoplius semirufus Cresson 1867

 

5  Abdomen black, or the second tergite with a pair of small orange spots, the segment rarely encircled with orange; venter sparsely hairy

Anoplius americanus americanus Beauvois 1805

 

5 Abdomen very rarely wholly black, the second segment usually marked with orange and usually encircled with orange, the coloration sometimes extending to adjacent segments; venter sparsely or conspicuously hairy

 

Anoplius americanus juxtus (Cresson) 1865

 

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