Anoplius, Dufour, 1834

Sadler, Emily, 2017, Review of the Neotropical spider wasp subgenus Anoplius (Dicranoplius) Haupt (Hymenoptera: Pompilidae), new comb., Zootaxa 4311 (4), pp. 537-550 : 548-549

Key to the New World Subgenera of Anoplius

(modified from Evans 1966)

Females

1. Front tarsis without a comb, the second segment with or without some minute spines on the outer side and with the usual apical ones................................................................................................2

-. Front tarsis with a comb of short to fairly long spines, the second segment with a spine on the outer side near the middle which is as long as the apex of this segment......................................................................3

2. Claws dentate (except in A. ithaca , in this species the inner claws of each pair longer than the outer claws, in any case the inner ray acute); three SMCs present.............................................................. Anoplius Dufour

-. Claws bifid, the inner ray truncate, inner and outer claws of each pair the same size; two SMCs present Cameronoplius Evans

3. Claws bifid, the inner ray truncate, inner and outer claws of each pair the same size.................. Dicranoplius Haupt

-. Claws dentate........................................................................................4

4. Anterior margin of clypeus with a distinct median emargination; posterior margin of pronotum arcuate; head and mesosoma with abundant erect hairs......................................................... Lophopompilus Radoskowski

-. Anterior margin of clypeus without emargination, or, if so, either the posterior margin of pronotum angulate or the propodeum only weakly setose or setae absent........................................................................5

5. Marginal cell long, removed from wing tip by not more than its own length, the Rs rather evenly arched; SMC3 wider on Rs than second; spines of tarsal comb very short.................................................. Anopliodes Banks

-. Marginal cell of variable length, Rs always somewhat angled at 3rs-m vein; SMC3 narrower on the Rs than the second.....5

6. Apical margin of clypeus with a median emargination; front narrow, MID no over 0.56× TFD.......... Notiochares Banks

-. Apical margin of clypeus truncate, or, if emargination, the front broader than above........... Arachnophroctonus Howard

Males

1. SGP with a large plumose process at its base which projects from the emargination of the preceding sternite............................................................................................ Lophopompilus Radoskowski

-. SGP without a basal plumose process...................................................................... 2

2. S4 with a semicircular area of felt-like pubescence along its posterior margin; SGP with a V-Shaped emargination................................................................................................ Notiochares Banks

-. S4 without such an area of felt-like pubescence; SGP not as above...............................................3

3. Last segment of tarsus unmodified, the sides nearly parallel, not at all produced laterally.............................4

-. Last segment of tarsus modified, the inner side weakly to strongly produced laterally................................5

4. SMC3 wide above, wider than the second; parapenial lobes not spatulate apically; posterior face of propodeum sometimes with dense short setae........................................................................ Anopliodes Banks

-. SMC3 narrower above than the second; parapenial lobes spatulate apically; posterior face of propodeum with dense elongate flattened setae......................................................................... Dicranoplius Haupt

5. Propodeum in profile sloping evenly from front to rear; venter often with dense brush of setae............ Anoplius Dufour

-. Propodeum in profile sloping weakly in front and much more abruptly declivous on the posterior fourth; venter with dense brush of setae in few species.............................................................................6

6. Two SMCs present, 2SMC receiving both 1m-cu and 2m-cu; fore wing with the transverse M+CuA and cu-a interstitial........................................................................................ Cameronoplius Evans

-. Three SMCs present............................................................. Arachnophroctonus Howard