216 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
ORNICHOLAX ALIENUS TAOI Carriker 
FIGURE 27, e : 
Ornicholax rohustus taot CARRIKER, Lice of the tinamous, p. 171, pl. 30, figs. 1, 
la, 1986. (Host: Tinamus t. tao.) 
This race was described from a single male, collected at Lagunita 
de Aroa, Venezuela. I have since secured an additional male from 
the type host, collected in the Sierra Perij4é of Colombia. (See dis- 
cussion of this race in general remarks under Ornicholax alienus.) 
This is a well-marked race, whose nearest relative seems to be O. a. 
solitarius Guimaraes and Lane. It is easily recognized by its small 
size, head longer than wide (unique in this character, O. solitarius 
having head measurement in male of 0.83 by 0.86), and by the male 
genitalia. The paramers are slender, only slightly curved, and entirely 
without the characteristic lateral lobes at their bases. The endomeral 
plate is extremely reduced in length, with the penis long, without 
appendages, and apparently with a tripartite tip; the spine-bearing 
lobes are unusually well developed, but the spine is short (but half 
the length of the spines in the O. robustus group). 
ORNICHOLAX ALIENUS SOLITARIUS Guimaraes and Lane 
Ornicholax solitarius GUIMARAES and LANE, Rey. Mus. Paulista, vol. 23, p. 3, pl. 
1, figs. 1-1b, 19387. (Host: Tinamus solitarius.) 
This form, like taoz, has the genitalia with the paramers almost 
straight, slender, and lacking the lateral lobes, but differs from taoz 
in structure of the endomeral plate (see fig.). The head in the male is 
also wider than long, the reverse of ¢aoz. Unfortunately, the measure- 
ments given are not so complete as might be desired. 
MEASUREMENTS OF ORNICHOLAX ALIENUS 
robustus (types, from Tinamus mexicanus (types, from J. m. 
major castaneiceps) percautus) 
Structure Male 
Length | Width | Length| Width | Length| Width | Length] Width 
BB X00 Gr UNO A MAE NR a VG SAS Ls Sapa UI nea ORT HLA HAMAD CURLC DAG’ i sees OE WV ie W/E 2. 73 
Boks 6 hago at ca Na Na 0. 76 0. 84 0. 825 0. 846 0. 80 0. 89 0. 83 0. 93 
Pro thorax ea eee LA 0. 21 0.49 | 0.24 0. 52 0. 22 0. 50 0. 24 0. 51 
Mies Ob onan ie Ry es OR a ly ay 0. 326 0.87 | 0.36 0. 94 0. 34 0. 93 0. 39 0. 95 
Wire ta thors xay) oui ie nae yin Os HI 0. 30 0. 59 0. 37 0. 63 0. 32 0. 63 0. 37 0. 65 
AGomen secu i ies eee ONL ae 1.41 1.18} 1.62 1.30 1. 43 1. 28 1. 67 1. 35 
PATTON SO 2 et a OLED Maa ir Mea a ysy C2) UD a Hy 9 SIG CU a es A a OES 2 eee seo 0. 28 
IP ATA CLS ene AN DAN a etter enu Noe R20 Fyn Cn 72 eRe eh | aerate U3 gl het al 
