Coelorachis: Townes (1970: 87), misspelling.
Coelorhachis: Gauld (1997: 220-227), revision.
Coelorachis: Townes (1970: 87), misspelling.
Coelorhachis: Gauld (1997: 220-227), revision.
The position of fore wing 2m-cu as it enters the areolet is somewhat more variable than indicated by Gauld (1997). Some specimens I have examined from Mexico have 2m-cu entering at the midpoint of the posterior margin of the areolet or slightly distad.
Many of the species of Coelorhachis are yellow with black markings similar to those shown in the figures above.
At least some of the specimens I have seen from Chile, though conforming to the definitions of Coelorhachis proposed by both Townes and Gauld, are slightly different in clypeal configuration: possessing small, thin lateral teeth.
Five valid species are presently known:
Coelorhachis decorosa (Cresson, 1868), Nearctic
Coelorhachis edithae Gauld, 1997, Neotropics
Coelorhachis felipei Gauld, 1997, Neotropics
Coelorhachis gloriae Gauld, 1997, Neotropics
Coelorhachis heineri Gauld, 1997, Neotropics
Coelorhachis belongs to a group of genera in which the dorsal tendon attachment is set within a deep basal median pit, with the glymmae extending towards the pit rather than meeting posterior to the pit to form a median, translucent window as in Perilissus and many other genera. Gauld (1997) included the Neotropical Tetrambon and Sialocara in this group as well as the Holarctic Lathiponus, Synoecetes, and Zaplethocornia. Gauld also noted that there were several undescribed neotropical genera that belonged to the group, but it is not clear whether his statement referred to the three genera newly described and assigned to the “Coelorhachis group” in this work (Jorgeus, Peakelestes, and Xiomara), or whether he had other undescribed genera in mind. Examination of neotropical material now accumulating in several collections reveals a rich diversity within this group, suggesting the need to describe several new genera to accomodate this diversity. As Gauld (1997:222) noted, however, a great deal of work is needed to establish the monophyly of genera in this group and thus provide a more solid basis for generic assignment of species.
There are no specimens currently determined for this OTU, or those specimens determined for this OTU are not yet mappable.
This material is based upon work supported by the National Science Foundation under Grant Number DEB 0328922 with REU supplement DEB 1026618.
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.