REVISION OF GENUS FURNARICOLA — CARRIKER 413 



Furnaricola hirsuta hirsuta, new species 



Figures 10, 11, 16a, 17a 



Holotype female and allotype male adults, from Xiphorhynchus 

 picus saturatior (Hellmayr),^ collected by the author at Puerto 

 Venecia, Caquetd, Colombia, May 8, 1952 (Carriker type no. 790). 



Diagnosis: A species very different from lachrymosa, although the 

 hosts of both belong to the avian genus Xiphorhynchus (see footnote) . 



It is strongly pigmented and with certain cephalic carinae and 

 anterior portion of paratergals black; abdominal sclerites rather 

 distinct, as well as the sternal fringe of short spines and the two long 

 spines on each side of sternite VIII. First and third femora, and 

 third tibiae unusually large and with strong claws. Lateral margins 

 of preantennary portion of head almost straight; frons narrow and 

 anterior plate long and narrow. 



Basal plate of male genitalia with wide marginal carinae; paramera 

 with basal two-thirds wide, and thence tapering sharply to the short, 

 straight, and narrow apical portion. Represented by female holo- 

 type, male allotype, and one male and five female paratypes. One male 

 and one female from the type host collected at Ciicuta are slightly inter- 

 mediate between hirsuta and the next subspecies but closer to the f onner. 



A male and two females from Rio Viejo (eastern Dept. Bolivar, 

 Magdalena Valley), within the range of X. p. dugandi, although dif- 

 fering slightly from specimens of picirostris (the following subspecies), 

 must be placed under that race, whose host is X. p. picirostris. 



Specimens from Pto. Venecio and Covenas (hirsuta) are the smallest 

 of the different populations, are the most deeply pigmented, and 

 also differ in the male genitalia and chaetotaxy of segment VIII of 

 the female. 



Figures are given of the male genitalia of hirsuta (Pto. Venecia) 

 and of picirostris (from El Conejo), also the chaetotaxy of segment 

 VIII of the females of picirostris from Rio Vieja (16a) and El Conejo 

 (19a) which, it will be noted, are very similar, while that of hirsuta 

 (Pto. Venecia) is very different. Certainly much more material from 

 the different subspecies of Xiphorhynchus picus is required in order 

 to satisfactorily classify the forms of Furnaricola parasitic on them. 



The chaetotaxy of segment VIII in the females and the male 

 genitalia have been largely used in the classification of the species 

 and subspecies of this genus, the characters which appear to be the 



3 I have examined 5 males and 10 females from three supposedly different 

 subspecies of Xiphorhynchus picus. All are conspecific but may be roughly 

 divided into two subspecies. In addition to the specimens cited above from 

 X. p. saturatior, there is a single female from Covenas (coast of Dept. Bolivar) 

 in the range of X. p. dugandi which cannot be separated from them, being small 

 and deeply colored, and must be called F. h. hirsuta. 

 782-223—66 2 



