02279nas a2200289 4500008004100000022001400041245016000055210006900215260001600284300001400300490000700314520131000321653001801631653000901649653001101658653001201669100003101681700002601712700002801738700003101766700003001797700002901827700002401856700002901880700002901909856005101938 2017 eng d a0147-172400aFirst Report of Chewing Lice Heterodoxus spiniger (Enderlein, 1909) and Trichodectes canis(De Geer, 1778) on Domestic Dogs at Tabasco, Mexico0 aFirst Report of Chewing Lice iHeterodoxus spinigeri Enderlein 19 cJan-06-2017 a409 - 4180 v423 a

ice are small wingless insects in the order Phthiraptera. Historically, the chewing louse Heterodoxus spiniger (Enderlein) was described from marsupials to the domestic dog (Canis lupus familiaris L.). Clinical manifestations of infestations by chewing lice are characterized by intense irritation and inflammation of the skin. We found six of 337 domiciled dogs from Tabasco State, Southeastern Mexico infested by chewing lice. Dogs were systematically examined, and ectoparasites were removed using a fine-toothed comb. Lice were deposited on a white sheet of paper and placed into plastic containers. The dog houses sampled were typically small and built of cement, and most inhabitants lived in vulnerable conditions. This is the first record of H. spiniger and the dog biting louse, Trichodectes canis (De Geer), infesting domestic dogs in Mexico. H. spiniger was present in the six dogs infested by lice, and T. canis co-infested one of them. Therefore, six infested dogs (100%) were positive for H. spiniger and one (17%) for T. canis. The importance of this report is that both ectoparasites are recognized as vectors of zoonotic diseases. Further studies are needed to clarify lice distribution, prevalence, and vectorial importance of neglected parasitic infections in Southeast Mexico.

10achewing louse10adogs10amexico10aTabasco1 aTorres-Chable, Oswaldo, M.1 aBaak-Baak, Carlos, M.1 aCigarroa-Toledo, Nohemi1 aZaragoza-Vera, Claudia, V.1 aArjona-Jimenez, Guadalupe1 aMoreno-Perez, Lluvia, G.1 aMedina-Perez, Pablo1 aMachain-Williams, Carlos1 aGarcia-Rejon, Julian, E. uhttp://www.bioone.org/doi/10.3958/059.042.0211