Subgroup Pompilinus


   Females 

 

(Note: Species stenotus and rectangularis had unknown females at the time of this key’s creation. Males can be keyed.)

 

1  Body entirely black or blue-black

2

 

Body marked with rufous, orange-brown, or yellowish-brown on one or more of the basal abdominal tergites

6

 

2  Head, in anterior view, with the vertex distinctly elevated in an arc above the tops of the eyes; very small species

 

 

3

 

Head, in anterior view, with the vertex extending straight across at of slightly above the eye-tops; small or medium-sized species

 

4

 

3  Posterior margin of pronotum arcuate or at most with a very feeble angulation

 

Anoplius subcylindricus Banks 1917

 

Posterior margin of pronotum forming a distinct, though often broad, angulation

 

Anoplius percitus Evans 1950

 

 

4  Propodeum bearing numerous prominent erect hairs, at least dorsolaterally; head and thorax with considerable erect hair

 

Anoplius tenebrosus Cresson 1865

 

Propodeum not at all hairy or with only a few short, fine scarcely noticeable hairs on the sides

5

 

5  Front of moderate breadth, distinctly wider than the eyes taken together, the middle interocular distance varying from .57 to .60 times the transfacial distance

 

 

Anoplius insolens Banks 1912

 

Front narrow, only a little wider than the eyes taken together, the middle interocular distance varying from .53 to .56 times the transfacial distance

 

Anoplius clystera Banks 1914

 

6  Propodeum rather long, in full dorsal view as long as its greatest breadth, in lateral view with the slope low, the declivity not well defined; first two abdominal tergites marked with orange; antennae long and slender, the outer segments all more than three times as long as thick

 

 

Anoplius splendens Dreisbach 1949

 

Propodeum shorter, in full dorsal view not as long as broad, in lateral view with the dorsum more arched, the declivity better defined (in doubtful cases, antennal segments 7-10 each less than three times as long as thick); first abdominal tergite marked orange or not

 

 

7

 

7  Front and vertex very broad, the middle interocular distance at least .6 the transfacial distance; propodeum at least a little hirsute on the sides; tarsal comb variable, often stronger than below, the basitarsus with three or four comb-spines

 

Anoplius cylindricus Cresson 1867

 

Front and vertex of moderate breadth, the middle interocular distance less than .6 the transfacial; propodeum not at all hairy; spines of the tarsal comb not longer than the width of the tarsus, the basitarsus with three comb-spines

 

Anoplius marginatus Say 1824

 

 


 

   Males

 

1  Abdominal sternite 4 with a dense patch of setae, visible at least under high magnification; parameres of genitalia slender throughout, except in tow species in which the hair-brush on the fourth sternite is very conspicuous

 

2

 

Abdominal venter without a patch of setae on any of the sternites, at most with a few scattered weak heirs, or some short setae on sternites 6 or 7; parameres usually broader distally than near the base

3

 

2  Third antennal segment not more than 2.3 times as long as its greatest thickness, and a little shorter than the scape; digitus volsellaris with a group of small setae on the inner margin at and just below the apex

 

 

Anoplius subcylindricus Banks 1917

 

Third antennal segment very slender, at least 3 times as long as its greatest thickness, at least as long as the scape; digitus without a group of setae in this position

 

 

Anoplius percitus Evans 1950

 

3  Subgenital plate completely flat, the disc with two feeble carinae which converge slightly behind, the apex evenly rounded; digiti rounded apically

 

 

 

Anoplius tenebrosus Cresson 1865

 

Subgenital plate of different form, generally somewhat elevated medially, the apex usually acute or subactue, the disc never with paired carinae; digiti never evenly rounded apically

4

 

4  Hind basitarsus on the inner side for its entire length beset with short, erect hairs; genitalia as shown

 

 

 

Anoplius marginatus Say 1824

 

Hind basitarsus with erect setae only for a short distance basally, near the spurs

 

5

 

5  Subgenital plate tapering gradually to a more or less acute tip, usually rather strongly hirsute ventrally; genitalia with the digiti more or less truncate apically, the parameres slender basally and with the squamae unusually prominent

 

 

 

Anoplius cylindricus Cresson 1867

 

Subgenital plate either obtusely pointed apically, or broadly rounded and with the median point acute; digiti not squarely truncate apically

6

 

6  Subgenital plate obtusely pointed, the disc a little convex in cross-section, but the median line not sharply elevated; parameres broad nearly to the apex, which is subtruncate

 

 

 

Anoplius insolens Banks 1912

 

Subgenital plate with the median line distinctly elevated above the rest of the disc, the apex not tapered gradually to an obtuse angle; genitalia not as in Fig. 95

7

 

7  Subgenital plate with broad side-pieces completely devoid of even minute setae; digiti often without long setae on the upper, outer margin

 

8

 

Subgenital plate clothed completely, at least on the apical half, with at least minute setae; digiti with some setae on the upper, outer margin, which are almost longer than those on the remainder of this appendage

 

9

 

8  Parameres devoid of setae along their inner margins ventrally except for a few short ones just above the squamae; digiti more or less spindle-shaped, the outer margin arched gradually to the apex

 

 

Anoplius stenotus bequaerti (Dreisbach) 1949

 

Parameres clothed ventrally along the inner margin with prominent long setae; digiti elongate, the apex more or less obliquely truncate

 

 

Anoplius rectangularis gillaspyi Kronbien 1950

 

9  Parameres strongly curved, tapering to a slender , acute apex; digiti clothed sparsely with rather soft hairs, and with a number of long hairs at the upper, outer margin

 

 

Anoplius splendens Dreisbach 1949

 

Parameres somewhat curved, the apex much less slender and tapering; digiti clothed on the disc with close-set, rather stiff hairs which are angled at their apices

 

 

Anoplius clystera Banks 1914

 

Key Main