188 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
MEASUREMENTS OF MEGAPEOSTUS 
parvigenitalis (corrected) m. multiplex 
Male Females 
Structure Male Female (average of 5) 
Length, Width | Length} Width | Length; Width | Length) Width 
| 
TFS iy Sel ANN te EN AUR LPN ZT Oi exon na DAO Ma aateshonl QO Grin eee tals 1,98 
dB ets Y.0 Geseh Cet PMN cB SURES CMa ee a Ba 0. 54 0.835 | 0.57 0.868 | 0.51 0. 76 0. 487 0. 75 
IPPON OTA asa eI UE 0. 27 0. 49 0. 26 0. 44 0. 24 0.466 | 0.22 0. 415 
Meso thoraxcs ss0i Tei Wane WON 0.195 | 0.76 0.195 | 0.7388 | 0.18 0.735 | 0.16 0. 68 
Meta thoraxyay oie cece sis caGsn Aouad 0.217 | 0.69 0. 24 0. 68 0.217 | 0.67 0. 21 0. 64 
IAD OTE TO AUN Lan 1, 25 0. 84 1.35 0. 88 1,31 0. 81 1, 28 0. 80 
A TITED DDC ye Ae eR GSO ah 0.39 0. 09 0. 26 0. 03 0. 30 0. 09 0. 21 0. 038 
1 SYNTH Uy 0} CoA eves eee CE NG ea AND AP ce a 0. 41 ORQ5 iad else weeny bak 0845620531) eee aes 
WON EsPAaraMner see =e ses ee ee See ONSET UOMO Pe eras | Mia lee ae VONZO2 0 EONO28) | ee ares 
Short paramere we yes Ma 0. 26 OE O24 5 te ee eens 2002820 eONO2 10 | eoneuees 
Endomeral plate__._---------------- Or SS ONO LG See een aa 0.217.| 6.048 |.-.-..-- 
1 Right. 4 Left. 
MEGAPEOSTUS MULTIPLEX IDONEUS, new subspecies 
FIGURE 23, a—c 
Types.——Male and female, adults, from Crypturellus idoneus, col- 
lected by the author at Carraipia, La Guajira, Colombia, May 30, 1941; 
in U.S. National Museum. 
Diagnosis—Differs from M. m. multiplex Clay in the following 
characters: Male with frons more convex, between multiplex and 
secundus, and with six instead of four internal projections on the 
front; the sides of the temples are almost straight (less convex than 
in multiplex) ; the prothorax is nearer to the shape of secundus, as 
well as the metathorax; abdominal segment VII is also different (see 
fig.) , as well as the shape of the incrassations on the pleural plates; the 
scent gland,’ on pleurite V, is strongly developed in both forms, 
but the pleurite is more deeply incised for its reception in zdoneus. 
The male genitalia are of the same pattern as in multiplex, in that 
they possess the curving braces attached at the base of the basal plate, 
for the support of the paramers; the endomeral plate is likewise of 
the same type, with tripartite tip. The longer paramer (the right) 
is of a different pattern, however, being similar in shape to the long 
left paramer in W/. asymmetricus Carriker, but most of the component 
parts of the genital armature differ considerably in detail from those 
of multiplen. 
The female is very close to that of multiplew. The temples are wider 
7The scent gland is well developed in all the species of this genus I have seen (¥. 
asymmetricus, M. parvigenitalis, M. multiplex, M. m. idoneus, and M. secundus) and is of 
the same type in all the species, with a short tubular outlet at its apex, much resembling 
a woman’s breast. The different species and subspecies present certain slight differences 
in size, shape, and the incised recess in which it lies. 
