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UBICACIÓN Mérida Yucatán
Quezada-Euán J.J.G.; Sheets H.D.; De Luna E.; Eltz T. (2015) Identification of cryptic species and
morphotypes in male Euglossa: morphometric
analysis offorewings (Hymenoptera:
Euglossini). Apidologie46: 787-795
Males of sibling orchid bees Euglossa
viridissima and E. dilemma are morphologically cryptic, except for
the number and shape of mandibular teeth. An alternative morph of E.
viridissima has a third tooth similar to males of E. dilemma. We
used this model system to evaluate the potential of wing morphometrics for the
resolution of these groups. We found differences in the size characters of
forewings of E. viridissima and E. dilemma albeit with
substantial overlapping amongst them. However, geometric morphometrics of forewing
vein intersections separated both species and, to a lesser extent, morphotypes.
A discriminant analysis of the shape of the radial cell showed separation
between all three groups, too, albeit with higher misclassification between E.
viridissima and E. dilemma. We show that sibling cryptic species and
morphotypes can be identified by geometric morphometrics, supporting its
application with other methods as powerful aids to infrageneric taxonomy in