Archibald, Bruce, 2009, New Cimbrophlebiidae (Insecta: Mecoptera) from the Early Eocene at McAbee, British Columbia, Canada and Republic, Washington, USA, Zootaxa 2249, pp. 51-62: 59-60

publication ID 10.5281/zenodo.190747

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Cimbrophlebia  sp. A.

( Fig. 7View FIGURE 7 A –C)

Description. Wing as in Fig. 7View FIGURE 7 A –C, and the following. Length of portion preserved ~ 28 mm (estimated complete> 40 mm, see remarks, below), width ~7.5 mm (preserved portion, not maximum). Colouration as in Fig. 7View FIGURE 7 A, similar (preserved portion) to C. flabelliformis  , C. leahyi  ; possibly, but less likely C. westae  . Sc, R, Rs, M, small basal portions preserved. Cu 1, Cu 2, 1 A: preserved portions generalized as for genus. 2 A: six pectinate branches. Crossveins: none detected as preserved.

Material. UCCIPR L- 18 F- 998 (part), F- 1137 (counterpart). Fore- or hind wing, missing apical third and about two thirds of the anterior portion, and a small portion of basal hind margin; in the collection of TRU. Labelled: hypotype, Cimbrophlebia  sp. A, Archibald, 2009. Collected by unknown person at McAbee in 2002, donated to TRU by David Langevin, 2002.

Locality and age. McAbee, British Columbia, Canada; Early Eocene.

Remarks. The preserved portions of the wing of C. sp. A indicate that its shape is consistent with that of C. flabelliformis  ( Fig. 7View FIGURE 7 C). If so, its complete length would be likely over 40 mm. The width of the preserved portion (not maximum) is ~7.5 mm. By its large size, this is confidently separated from C. flabelliformis  [length ~ 28 mm; width 7 mm] and C. westae  [length ~ 25 mm, width ~ 6 mm]. The 2 A with six pectinate branches preserved separates it from C. bittaciformis  [seven branches: three basal branches pectinate, four distal branches dichotomous], from C. leahyi  [six branches: two basal branches pectinate, minimum of four dichotomous distal branches], and from C. flabelliformis  [four pectinate branches], although not from C. brooksi  and C. westae  , where 2 A is little known by preservation. Cimbrophlebia  sp. A apparently has a similar shape as known to C. flabelliformis  , C. leahyi  and C. westae  , which are relatively wide, differing from the narrower wings of C. brooksi  and C. bittaciformis  (see above). Colouration, when known from a complete wing will surely be informative (see C. flabelliformis  remarks above). Better-preserved specimens are needed to clarify supposition that this represents a distinct, separate species.