STUDIES IN NEOTROPICAL MALLOPHAGA—CARRIKER 89 
MEASUREMENTS OF TINAMOTAECOLA ANDINAE 
Male Female 
Structure T TLSaRaGT OFS aS (SST mee 
Length Width Length Width 
TBO D748 Sa Ala Nk UM iy a Te Rc PSG iH | eles Sv ds 2.17 
18 ois V6 (CUA me ree PO an Ro ee Le ON Oe 0..59 0. 48 0. 63 0. 53 
PRT OCHO TA Kesey MCE rae mae CUMS yk UE Aaa 0. 22 0. 30 0, 22 0. 30 
TERRE RO LE AYO) 2 Pi CeUA A SPIRE UN SE I ae 0. 22 0. 39 0. 26 0. 37 
PANT) OTTO TI asi a ECL ON IN Se aes RN ea hI 1.00 0. 50 1, 28 0. 61 
FATITENT ARM emer ai EN aU RR  ych Ta ils 0. 26 0. 05 0. 26 0. 06 
J] BXENCHEY BY 0) CEL EY A RTO 2 ARN CT RR a LO A 0. 26 ONS wee ewe 
PAR AMOTS Ue ve eee VENUE SE ON a Ek Te I oes AU 0.18 O45) eee le 
Hndomeral plate_ 2 so)- ee ee ee 0.15 ORO Eee sos 
Genus PSEUDOLIPEURUS Carriker 
PSEUDOLIPEURUS LONGIPES (Piaget) 
Lipeurus longipes P1acet, Les Pédiculines, p. 329, pl. 28, fig. 3, 1880. (Host: Tina- 
mus obsoletus=Crypturellus 0. obsoletus, Brazil.) 
Dr. Hopkins has recently received from Brazil specimens of 
P. longipes taken on Crypturellus o. obsoletus, which, when compared 
with Piaget’s types, proved to be identical with them but different from 
the specimens taken by me on C, obsoletus punensis, and which I had 
redescribed as P. longipes (Carriker, 1936, p. 72, pl. 3, figs. 2, 2a, 2b). 
Dr. Hopkins has transmitted his findings regarding the two forms, 
making my specimens from C. 0. punensis the types of a new sub- 
species (p. 93). He has communicated to me the differences between 
the two forms, so that I am now able to define clearly the status of the 
series of specimens of P. longipes taken in Mexico on Tinamus major 
percautus, Crypturellus b. boucardi, and C. cinnamomeus sallaet. 
According to Dr. Hopkins, true longipes differs from the parasites 
described by me from C. obsoletus punensis as follows: 
“The chitinous bars which strengthen the basal plate converge dis- 
tally distinctly more strongly in Piaget’s form; the paramers are 
decidedly stouter and more strongly bent than in the material from 
punensis, but the most striking difference is that the endomeral plate 
(of the same type in both forms) is proportionately very much shorter 
in the material from C. 0. punensis than in true longipes; in the former 
it is little more than twice as long as broad and occupies slightly more 
than half (seven-thirteenths) of the longitudinal space between the 
paramers, whereas in true longipes it is rather more than three times 
as long as broad and occupies nearly three-quarters (nine-thirteenths) 
of this space. In the form from @. 0. punensis the female is con- 
siderably larger than the male, while the head is decidedly wider in 
the female than in the male. Neither of these characters holds good 
