416 PROCEEDINGS OF THE NATIONAL MUSEUM vol. iis 



It may be noted that the male genitalia in the present species, in 

 certhia, and in guttata are in proportion to the size of the hosts, that of 

 certhia, being the largest and that oi juliginosa the smallest. 



In the author's collection are 2 males of this species from D. j. 

 lajresnayei, collected in Antioqiiia, Colombia, which differ so strongly 

 from Juliginosa that they must be given subspecific rank, and are 

 described below. 



Furnaricola fuUginosa antioqu4nsis, new subspecies 



Figures 15, 16 



Holotype male adult, from Dendrocincla Juliginosa lafresnayer 

 Ridgway, collected by the author at Taraza, Anti6quia, Colombia 

 (Rio Cauca), April 26, 1948 (Carriker type no. 793). 



Diagnosis: Very much larger in all measurements than the nominate 

 form. Head also similar in shape to that of certhia, but has narrower 

 frons and much wider clavi; preantennary carinae narrower basally 

 and antennae thicker. There are also differences in the structure of 

 the genitalia but the much larger size alone is sufficient for its separa- 

 tion from Juliginosa. Represented by the male holotype and one 

 male paratype. 



Measurements follow the next species. 



Furnaricola qitadraticeps, new species 



Figures 17, 23a 



Holotype female adult, from Cichocolaptes leucophrys (Jardine and 

 Selby),* collected by Dr. F. L. Werneck at Serra do Angradas, Edo. 

 Rio de Janeiro, Brazil (Carriker type no. 794). 



Diagnosis: Head of a very unusual shape, the portion posterior to 

 the antennary fossae being quite quadrilateral in shape, with slightly 

 rounded templar angles and undulating occipital margin; the pre- 

 antennary portion of head consists of a perfect truncated cone, with 

 wide, heavily pigmented preantennary carinae. 



The thorax and abdomen show no distinctive characters, except 

 the very short spines, with thickened bases, at sides of segment VIII 

 and with only 3 short setae back of them; segment VIII is small in 

 comparison to size of abdomen. Undoubtedly the male, when taken, 

 will show decisive differences in the genitalia. Represented by the 

 female holotype and four female paratypes. 



Measurements of male holotypes of F.J. Juliginosa, F.J. antioquensis, 

 and female holotype of F. quadraticeps are as follows : 



* For change of name from Anabates femiginolentus Wied to Cichocolapes 

 leucophrys (Jardine and Selby), see Peters, "Birds of the World," 1951, vol. 7, 

 p. 140. 



