taxonID	type	description	language	source
A854B15B1DB3BB18D9BFC4025BD9465A.taxon	diagnosis	Diagnosis. This new species belongs to the Megalostomis grossa species group as defined by Agrain and Roig-Junent (2011). Characters of this species group exhibited by this species are: uniform antennal coloration, presence of a longitudinal carina at interocular space, and pronotal disc pilosity limited to or denser at its margins; even if this species shares some characters with its relatives (e. g. the hypertrophied eye stalk with Megalostomis grandis (Forsberg), it can be easily separated from this and other related species by several characters: male mandibles exceeding length of clypeus, head wider than long, subrectangular pronotal disc longer than high, with its lateral margins visible from above, central dorsal plate of kotpresse (female) with three arms, apical margin of dorsal plate of aedeagus straight, among others. As a rule, for this genus, the best way to identify the females (without dissecting them) is by comparing the coloration pattern with their respective males.	en	Agrain, Federico A. (2014): An interactive multi-entry key to the species of Megalostomis Chevrolat, with description of a new species from Paraguay (Chrysomelidae, Cryptocephalinae). ZooKeys 425: 59-69, DOI: http://dx.doi.org/10.3897/zookeys.425.7631, URL: http://dx.doi.org/10.3897/zookeys.425.7631
A854B15B1DB3BB18D9BFC4025BD9465A.taxon	etymology	Etymology. Specific name is treated as a noun in apposition (ICZN 1999, Art. 34.2.1), it is dedicated to the distinguished Chilean coleopterist Agr. Eng. Juan Enrique Barriga-Tunon, who generously received me in his outstanding insect collection.	en	Agrain, Federico A. (2014): An interactive multi-entry key to the species of Megalostomis Chevrolat, with description of a new species from Paraguay (Chrysomelidae, Cryptocephalinae). ZooKeys 425: 59-69, DOI: http://dx.doi.org/10.3897/zookeys.425.7631, URL: http://dx.doi.org/10.3897/zookeys.425.7631
