130 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
Kight males and five females (including the types) were taken on 
the type host at Oploca, Bolivia, and a single female on Nothoprocta 
from Incachaca. This female is not quite typical, but until more ma- 
terial is available for study it seems best to place it here. 
CUCLOTOCEPHALUS EXTRANEUS ORNATUS, new subspecies 
FIcuReE 9, B, 4 
Types.—Male and female, adults, from Nothoprocta o. ornata, col- 
lected by the author at Callipampa, Bolivia, on June 4, 1936; in collec- 
tion of author. 
Piagnosis—The head has the front elliptical, instead of uniformly 
rounded; occiput more deeply emarginate; sides of prothorax more 
convex and not divergent; pterothorax wider at lateral angles (extend- 
ing farther beyond sides of abdomen) and its sides more convex. 
Whole abdomen much slenderer, the last abdominal segment in the 
female is of the same shape as in typical extraneus, except the anterior 
end is less conical; the chaetotaxy of the entire body seems to be prac- 
tically the same as in extraneus. The paratergal plates are the same 
asin s¢milis. Region of temples, thorax, paratergal plates and narrow 
area inside them have the dorsal integument rugose, as in s¢milis. 
There is less dimorphism in the antennae than in s¢mlis; the basal 
plate is wider, paramers longer and much narrower. There are some 
striking discrepancies in the measurements, the abdomen of the 
female of ornatus being narrower than that of the male, while in 
similis it is the reverse; the prothorax and pterothorax of the two 
sexes are practically the same size in ornatus, but in sémilis they differ 
decidedly ; the head is decidedly wider than long in ornatus, while in 
similis it is the reverse. The female as compared with extraneus is 
smaller in all dimensions, with the head proportionally wider and 
the abdomen very much narrower. 
MEASUREMENTS OF CUCLOTOCEPHALUS EXTRANEUS ORNATUS 
| 
Male Female 
Structure =a GOST | SUCH | 
Length Width Length Width 
] BOY Ex ay SAN UNO Ys AU A RSS) AD OK 2s PRUNES NIE IV DULG} SiG Raa SE ee ey il; 7Al 
BS WEEK NRE ESN) A TS NN AWS el 0. 43 0. 456 0. 477 0. 50 
PROGR OPA ES SARE RMR SEE ED Be Le 0.15 0. 26 0.15 0. 26 
IP GCTO GOT AK. MPs NINN AS Ath YN SUN Ae RSL 0. 28 0. 35 0. 27 0. 35 
VANTD CLO TUNG Tt Re IR Dy Ra AUN a RNA a ARR RL aL 0. 96 0. 52 1.07 0. 46 
JAI GON TIA Meee AAR RE CSIC ORNS LSU VC AA BR 0. 25 0. 05 0. 217 0. 04 
SYTHE UB ob Ferre VuMlsy ea abe I a En a one ay a a a Ng 0. 20 QS 087i | eee Dee 
RA TATIOTS eee tare ee TLDS Se SEN eye Ue UD eles a sc 0. 205 OS O95 i ey naa 
EN AOMeEr all PLale ey ew NEAR a tise ok aay Re ected 2 0.11 08043) ese 
