Host: Euphonia gouldi Sclater – Olive-backed Euphonia

One chewing louse species was found on this host:

Myrsidea violaceae Price & Dalgleish, 2006

Myrsidea violaceae Price & Dalgleish, 2006: 9 .

Type host. Euphonia violacea (Linnaeus)

Material studied. 1 female, 4 nymphs ex Euphonia gouldi, COSTA RICA: Barbilla NP, Provincia Limỏn (9°59’N, 85°27’W), 10 September 2004, Literák, Č apek & Havlίček coll. Deposited in INBio – O. Sychra CR65.

Remarks. Our female differs a little from original description of M. violaceae by having smaller dimensions, especially MW, 0.38; AWIV, 0.46 and TL, 1.33. Two of seven birds examined were parasitised by M. violaceae . This is the first record of a chewing louse species from Euphonia gouldi .