136 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
host at Samaipata, Bolivia, November 4, 1987. They agree exactly 
with the original insects from which the species was redescribed by 
the author. 
RHOPALOCERAS HETEROGENITALIS HETEROGENITALIS, new species 
Ficurs 10, a, b, € 
Types.—Male and female, adults, from Crypturellus b. boucardi, 
collected by the author on Cerro Tuxtla, Veracruz, Mexico, on March 
28, 1940; in U. S. National Museum. 
This species differs from all the other known forms of the genus 
in the type of the male genital armature. There is no other that it 
seems to resemble as to the paramers, although the endomeres are 
somewhat after the type of brevitemporalis, to which it is nearest in 
size and the female genitalia, but it is still considerably larger than 
that species. The shape of the head is quite close to that of 2. laticeps 
abbreviatus, but the thorax and genitalia are very different. 
The number of teeth in the abdominal combs varies greatly, both 
among individuals and between the right and left sides. The ac- 
companying figure shows clearly the shape and structure of the head 
and thorax and the antennae of both sexes, as well as the last abdominal 
segment and genital apparatus of the female, while an enlarged figure 
of the unique male genital armature is given. 
MEASUREMENTS OF RHOPALOCERAS HETEROGENITALIS HETEROGENITALIS 
i 
Male | Female 
Structure a 
| Length Width | Length Width 
rr ae ma aiaR SCR SENOS 
TPS © Gaya Ni ter a a ate Lage A MRT LAEN ey AE ANB De iL) tidy Wiesner | 3. 51 
OG (ehaY be Ie a So pe thane NG ad Nes ae UO BO SLA da 0. 93 1. 43 0.98 1. 52 
PTO CMON a atone ae acces ela Oe OE Eee tea Me Neb 0. 32 0. 87 0. 32 0. 90 
IMieso tho re Keer al 2 eRe tues MDT Han ea LD Rt 0. 28 1.01 0.31 1. 06 
Miata thors nett n sc tc NUE aiBU De Nianl py RUN RiC Raed NOP PUNE NALIE 0.19 1.15 0.17 1.16 
PAST OTM eG TAR i SE ala Aue a eo a at AO 1. 41 1. 21 1.95 1. 26 
PATI EO TATA AG ees biptire yell Gd EUG a MN ea ROU hee Ad 0. 52 0. 095 0. 45 0. 075 
PATATITOTS Came MEN Nag RI BUM UR APOE Nat ak (ites SUNG 0. 097 COC OY Mints hel ee a ak te 
trp aXe Koy seks) sofas 8 Die Mey dae yf Wa MN eS ra Cn ye | 0. 205 COSCO He pay agin 
NUMBER OF TEETH IN ABDOMINAL COMBS 
Male Female 
Left Right Left Right 
12 15 17 16 
12 12 14 13 
10 12 13 12 
10 8 11 11 
