STUDIES IN NEOTROPICAL MALLOPHAGA—CARRIKER 139 
MEASUREMENTS OF RHOPALOCERAS HETEROGENITALIS SPATULATA 
Male Female 
Structure Fa ARNT 
Length Width Length Width 
TEAC RI EA TON eS Rs a Ne AU I 27 (Vine [Nene ntenn ia 3. 58 
LE OTIS Hip Uae ts MOMMIES RI ONNAAL NIMC sue RN, NEN 0. 74 | 0. 78 
i Pee RSA OMNI UIE DOI em cali iano ee 1.39 tothe | 1. 60 
ARO EMOR AN SW sa bow a tie a BAS) eR NORE esate dh AUIS EAS 0. 32 0. 87 0. 37 0. 97 
NVICSO GOT Kees eS LU iota AND atl NC) Cah cc RAW RS UM at et 0. 32 | 1.00 0. 39 1.13 
VIE Ta GH O Ra Xue Gate Seed gamble Wl Uae Ne 2 8 0.15 1. 07 0.17 1. 26 
PANTS Cl OTITE TADS MUM eA ape eee ah Reena Weta ae SN YN! ek 1.30 1.19 1. 97 1.41 
PATIGE TTA CRe emi nig But RON RA LEE ARI eS ALY ACO dle ole 0. 59 0. 09 0. 41 0. 087 
LATA TTIOTS ea ae Capel ASIA NI Gel toh es WE UNIS) FOL EBLE 0. 13 OX053 i] Rees 
Endomeres -_-_-_.---- URE pat atar Mane einen Ra eC Lie Mule SAU MEAS 0. 217 O807/53| eee 
-_———_———  —————— 
NUMBER OF TEETH IN ABDOMINAL COMBS 
Male Female 
Left Right Left Right 
14 15 19 16 
13 13 13 15 
12 10 13 13 
6 9 12 12 
5 4 a 6 
RHOPALOCERAS LATICEPS BONAPARTI, new subspecies 
FicurE 10, d 
Types.—Male and female, adults, from Nothocercus bonapartt, col- 
lected by the author at Tierra Nueva, Sierra Perija, Colombia, in 
July 1941; in U. S. National Museum. 
Diagnosis—This race does not differ strikingly from f&. l. ab- 
breviatus. The shape, markings, and chaetotaxy of the head and 
body segments are very similar, although bonaparti is slenderer; the 
sternal thoracic plate is of the same shape, but the hairs attached to 
it are longer, as are the hairs at the posterolateral angles of the 
abdomen. 
The male genital armature, while of the same type, differs markedly 
as to proportions and detail, but the genital apparatus of the female 
is practically identical with that of abbreviatus, the differences being 
too small to be worthy of illustration. The measurements of the 
male as compared with Piaget’s for laticeps show the length to be 
more in all segments except the abdomen, which is less (this length 
is not always reliable), while the head and thorax are very much 
wider in bonaparti. As compared with R. 1. abbreviatus, there are 
