Synonyms and other taxonomic changes
Henicospilus Agassiz, 1846 (unjustified emendation)
Explanation of Names
Enicospilus Stephens 1835
from the Ancient Greek ἑνικός, henicos ('single') + σπῖλος, spilus ('spot')
Numbers
23 described spp. in our area arranged into 4 species groups
(1)(2) (only 12 of which are included in Nearctica
(3)); ~700 described species total.
1. Enicospilus aktites Gauld, 1988: s. FL
2.
Enicospilus americanus (Christ, 1791): NS west to MN, south to FL, s. TX, & e. CA
3. Enicospilus cushmani Gauld, 1988: eastern North America
4.
Enicospilus glabratus (Say, 1836): MD south to FL, west to s. CA
5. Enicospilus lebophagus Gauld, 1988: s. TX
6.
Enicospilus peigleri Gauld, 1988: southern U.S.
7. Enicospilus sarukhani Gauld, 1988: CA
8.
Enicospilus texanus (Ashmead, 1890): ne. CA, NY, OH, TX, sw. VA, WA
dispilus group
9. Enicospilus arcuatus (Felt, 1902): MA west to IL, south to GA & MI
10. Enicospilus cressoni: FL
11. Enicospilus fernaldi: FL
12.
Enicospilus flavostigma Hooker, 1912: CA to FL, north to NS (BG + iNat data)
13.
Enicospilus guatemalensis (Cameron, 1886): TX west to FL, north to WY, OK, KY, & NH (BG + iNat data)
14. Enicospilus opleri: FL
15. Enicospilus orosii: FL
16. Enicospilus ulfstrandi: FL, TX
ramidulus group
17. Enicospilus doylei: FL, LA
18. Enicospilus neotropicus: FL
19.
Enicospilus purgatus: QC west to se. AK, south to FL, s. TX, & s. CA
trilineatus group
20. Enicospilus appendiculatus Felt, 1902: AL, FL, NC, NJ, SC
21.
Enicospilus cubensis (Norton, 1863): FL
22. Enicospilus trilineatus Fabricius, 1775 (E. flavus auct.): FL, TX
??? - unknown to Gauld
23. Enicospilus bifoveolatus Brulle, 1846: PA
Identification
Some diagnostic characters for genus
Enicospilus (cf. key and figures 16 & 25 in
Broad(2006), and reference images
here) are:
the discosubmarginal cell (horsehead-shaped cell below the leading wing edge) extends beyond vein 2m-cu;
transparent oval (inside discosubmarginal cell) in the otherwise papillate wing [note at least some Enicospilus spp. have two spots in this oval];
adventitious (or "spurious") vein in cell 3Cu, parallel to the wing margin.
     

 
A (fairly old) key to species of
Enicospilus appears on pg. 57 of
Hooker(1912).
See Also
Ophion can be superficially similar.
Note the difference in wing venation:
Ophion
Enicospilus
Print References
Broad, Gavin (2006). Identification key to the subfamilies of Ichneumonidae (Hymenoptera). Biol. Records Center, CEH Monks Wood, UK. (download as
PDF).
Gauld, I.D. (1988). The species of the Enicospilus americanus complex (Hymenoptera: Ichneumonidae) in eastern North America. Systematic Entomology 13:31-53.
Hooker, Charles W. (1912). The Ichneumon flies of America belonging to the tribe Ophionini. Trans. Am. Ent. Soc. 38:1-176. (
Full Text)