98 PROCEEDINGS OF THE NATIONAL MUSEUM © VOL. 95 
between the Pseudolipeurus parasites of these two avian species cor- 
roborates this fact and would lead one to believe that rujficeps might 
well be conspecific with major rather than with serratus, or that major 
and serratus were also conspecific. Three males, including the type, 
were taken, but no females. 
PSEUDOLIPEURUS TINAMI RUFICEPS, new subspecies 
FIGURE 3, a—C 
Types.—Male and female, adults, from Zinamus serratus ruficeps, 
collected by the author at El Bosque, Sierra Perija, Colombia, June 14, 
1941; types in U.S. National Museum. 
Dianne .—General shape of head and body and male genital arma- 
ture similar to those of P. ¢. tinami, differing in proportions only. 
In the male the total length is less, the head is slightly shorter but 
considerably narrower; the prothorax of same length but much nar- 
rower; pterothorax also much narrower; the antennae as well as the 
third femur slightly smaller; the basal plate longer and narrower, and 
the paramers longer and ibnaes er apically; the endomeral plate, basal 
plate, and paramers are of slightly different shape. 
The female is also smaller than the female of t¢namz, but the porpor- 
tions are not the same as in the male (see table of measurements). 
Two males and two females (including the types) were taken. An- 
other individual of this host failed to yield parasites of the species. 
MEASUREMENTS OF PSEUDOLIPEURUS TINAMI RUFICEPS 
Male Female 
Structure usenet [eevee oP DU) nara CEN Vas 
Length Width Length Width 
BB Oy ee RR tech REN SES AIR ph ae ee a Og A ary | a UE rae 1.80 
ETS Eta pCR 2 PECAN Sa ie weve ae leas et es 0. 466 0. 357 0. 487 0.395 
(Brothora xcs eo NS nie ee ia 0.19 0. 227 0. 174 0. 25 
IP tero thorax oe ee es We ee eo Oe 0. 26 0. 305 0. 25 0. 35 
YAN COMME Tee TLS UE a Cea Ab 0. 98 0. 303 1. 05 0. 32 
Antennae (segment) 1) epic eS Lee eee ene pense 0. 11 0. 045 0. 053 0. 04 
Antennae (Segment) 2) wes so ee ae ee 0. 087 0. 03 0. 097 0. 02 
Basal pla temicenmnenee ci bli al we eb ee etait sa 0. 195 0.0874) |e ec eae ! 
IRAra mers). Oks Be A EB ORIN A eRe Seca 0. 15 OSO9 De eee ieee 
Third fern ure. bs UA Ee ee a ls 0. 41 0. 11 0. 39 0. 11 
Aintennae (total) mee ees 2 ee UN IR O8S4 7a eee ues 0. 32 
PSEUDOLIPEURUS SANCTAE-MARTAE, new species 
FIGuRE 3, d-g 
Types.——Male and female, adults, from Crypturellus idoneus, col- 
lected by the author at El Bosque, Sierra Perija, Colombia, June 14, 
1941; in U.S. National Museum. 
