1866. Rhogeëssa tumida H. Allen, Proc. Acad. Nat. Sci. Philadelphia, p. 286, type from Mirador, Veracruz.
Range.—From Boca del Río, Veracruz, in eastern México, southward over México and Central America into Panamá.
Rhogeëssa gracilis Miller.
1897. Rhogeëssa gracilis Miller, N. Amer. Fauna, 13:126, October 16, 1897, type from Piaxtla, Puebla.
Range.—Known only from the type locality and the Isthmus of Tehuantepec.
Transmitted November 30, 1951.
TABLE LEGEND
Column FO: Forearm
Column GR: Greatest length of skull including teeth
Column CO: Condylobasal length (not including teeth)
Column LE: Length of upper tooth-row, C1-M3
Column ZY: Zygomatic breadth
Column MA: Mastoid breadth
Column BR: Breadth across upper molars
Table 1.—Measurements of Rhogeëssa from Mexico
| No. | Sex | Date | Locality | FO | GR | CO | LE | ZY | MA | BR |
| [A] | Rhogeëssa parvula parvula | |||||||||
| 92413 | ? | May 19, 1897 | Maria Madre Island | 26.0 | 11.25 | 10.5 | 4.1 | .... | 6.1 | 4.7 |
| 7841 | ? | ............ | lost specimen—Tres Marias Ids. | 27.4 | .... | .... | .... | .... | .... | .... |
| 84021 | ... | ............ | alleged type of R. tumida | .... | 11.8 | 10.9 | 4.3 | .... | 6.2 | 4.9 |
| 24853 | ♀ | May 7, 1948 | W side Alamos, Sonora | 29.5 | 11.7 | 10.8 | 4.2 | 7.8 | 6.5 | 4.8 |
| 24854 | ♀ | May 7, 1948 | W side Alamos, Sonora | 29.0 | 11.4 | 10.6 | 4.4 | 7.6 | 6.1 | 4.9 |
| 39723 | ♂ | Aug. 5, 1950 | 1/2 mi. E San Blas, Nayarit | 27.2 | 12.2 | 11.5 | 4.5 | 7.9 | 6.5 | 5.1 |
| 39724 | ♂ | Aug. 5, 1950 | 1/2 mi. E San Blas, Nayarit | 27.3 | 11.7 | 10.7 | 4.2 | 7.4 | 6.4 | 4.8 |
| 39725 | ♀ | Aug. 7, 1950 | 1/2 mi. E San Blas, Nayarit | 28.0 | 12.0 | 10.9 | 4.4 | .... | 6.9 | 5.1 |
| Rhogeëssa parvula tumida | ||||||||||
| 29886 | ♂ | Dec. 8, 1948 | Boca del Rio, 10 ft., Veracruz | 28.7 | 12.7 | 11.9 | 4.63 | 8.4 | 6.9 | 5.6 |
| 19231 | ♀ | Oct. 6, 1946 | Rio Blanco, 20 km. W Piedras | |||||||
| Negras, Veracruz | 30.5 | 13.2 | 12.4 | 4.8 | .... | 7.0 | 5.6 | |||
| 37329 | ? | alleged paratype of R. parvula | .... | 12.3 | 11.3 | 4.68 | .... | 6.5 | 5.4 | |
| 73269 | ♀ | Jun. 12, 1895 | Santo Domingo, Oaxaca | 32.6 | 13.5 | 12.5 | 5.0 | 8.5 | 6.9 | 5.65 |
| 170858 | ♂ | Oct. 7, 1910 | La Tuxpana, Champoton, Campeche | 26.7 | 12.4 | 11.3 | 4.5 | 7.6 | 6.5 | 4.9 |