Por (1986) in his review of the family Cletodidae transferred some genera of this family to a new sub-family of Canthocamptidae: Hemimesochrinae, as well as provisionally placed the genus Cletocamptus in the "Canthocamptidae incertae sedis". Later on, Gee (1999), sharing the Por's (1986) opinion, provisionally included the genus Cletocamptus in the family Canthocamptidae incertae sedis, suggestings as well that this genus "must be removed to a new family which will brobably prove to be a sister family to the Cletodidae".

More recently, Mielke (2000) confirmed that "The situation of the genus Cletocamptus is complex and in some respects inconsistent..... This uncertainty is due to the conjecture that the two families, Canthocamptidae and Cletodidae, appear to be poly- or para-phyletic assemblages".

The genus Pontocletodes Apostolov, 1980 was not defined by Por (1986) and it is provisionally assigned to Cletodidae. Bodin (1997) reported the same genus as "incertae sedis", adding some new genera to the family Cletodidae.

Pending a definitive review of the above families, the genus Cletocamptus is herein provisonally placed in the Cletodidae sensu Scott, 1904; Por, 1986, which presently should include the following other genera: Acrenhydrosoma, Cletodes, Enhydrosoma, Enhydrosomella, Kollerua, Limnocletodes, Stylicletodes [Monocletodes Lang], Barbaracletodes, Australonannopus, Scintis, Strongylacron, Schizacron, Monocletodes, Intercletodes, Dyacrenhydrosoma, Paracrenhydrosoma , Triathrix, Sphingothrix, Neoacrenhydrosoma (Por, 1986, Fiers, 1987; Bodin, 1997; Gee, 1998,1999) and Spinapecruris Gee, 2001.

* species inquirenda (Lang, 1965; Por et al., 1984)

** recently moved to the genus Spinapecruris Gee, 2001 (Gee, 2001)

The systematic status of the genus Cletocamptus is still controversial. Several authors (Por, 1968; Bodin, 1997; Mielke, 2000, 2001; Gomez et al., 2007) include it in Canthocamptidae incertae sedis sensu Por, 1986. Pending a definitive review of the above family, the genus Cletocamptus is herein provisonally placed in the Cletodidae sensu Scott, 1904.

At present the valid species within Cletocamptus are C. retrogressus Schmankewitsch, 1875, C. confluens (Schmeil, 1894), C. albuquerquensis (Herrick, 1894), C. trichotus Kiefer, 1929, C. feei (Shen, 1956), C. affinis Kiefer, 1957, C. gravihiatus (Shen and Sung, 1963), C. helobius Fleeger, 1980, C. merbokensis Gee, 1999, C. axi Mielke, 2000, C. schmidti Mielke, 2000, C. deborahdexterae Gomez, Fleeger, Rocha-Olivares and Foltz, 2004, C. stimpsoni Gomez, Fleeger, Rocha-Olivares and Foltz, 2004, C. gabrieli Loffler, 1961, C. sinaloensis Gomez, Fleeger, Rocha- Olivares and Foltz, 2004, C. bicolor (Wilson, 1932), C. xenuus Por, 1968 , C. kummieri (Delachaux,1917), C. stimpsoni Gomez, Fleeger, Rocha Oliovarez & Faltz, 2003, C. fourchensis Gomez, Fleeger, Rocha-Olivares and Foltz, 2004, C. cecsurirensis Gomez, Scheihing & La Barca, 2007. C. mongolicus (Sterba, 1967), C. levis Gomez, 2005, C. nudus Gomez, 2005

Gomez et al. (2004) considered as species inquirendae some species within the genus and they also considered as doubtful some records of C. deitersi. Additional doubtful records of C. deitersi are those of Brehm (1936, 1965), Chappuis (1936), Ringuelet (1958a, 1958b, 1960, 1962), Ringuelet et al. (1965), Oliveira and Miranda (1971), Apostolov (1984), Ruber et al. (1994), and Loftus and Reid (2000).

* Cletocamptus confluens, according to its variability and widespread occurrence, could be considered an "assemblage of barely discernible species" (Mielke, 2000). For the same reason, the subspecies Cletocamptus confluens cyrenaica Brehm, 1908 and Cletocamptus confluens meridionalis Kiefer, 1929 are questionable.

Map of the distribution of Cletocamptus confluens (after Mielke, 2000 modif.)

The species Cletocamptus deitersi and Cletocamptus retrogressus are geographically widspread, and morphologically and ecologically variable thus implying the existence of morphologically indistinguishable sibling species (Mielke, 2001).