144 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
MEASUREMENTS OF HEPTAPSOGASTER MANDIBULARIS TAPICOLLAE 
Male Female 
Structure 7 ASAT TS CREAT UT STENT EUV SEUCHU 
Length | Width | Length | Width 
TB YONG bu fh a Ooh UNIS NR UN ey RSA CE CF es NLL Tey ea aU eta 1.37 
(Cor (G PRL ERE i A sgt STAN SALA a ra AS TL 0. 35 0. 46 0. 40 0. 49 
POGHOLT AK: eis sks WA aU Mee SAO UN RN EE A aL an aN pa 0. 13 0. 24 0.13 0. 28 
IVT eESOCMOL aK Le ee ey NREL atlas wie ely Leet 0.13 0. 44 0. 13 0. 53 
aM USL et YG) ers. ae AU ANE NN IES IN a SLA al EN SALE QU ZS 0. 09 0. 46 0. 12 0. 45 
FN) 06 Vp 0 553.0 PSI aN EO ga Le ge 0. 57 0. 54 0. 70 9. 61 
Antennae (first segment in male)________-____-_______- 0.09 0. 055 0. 174 
MPATAITICTS se ac ee Oaks OAs NRL Ry Cae aL ag ane 0. 08 ON075 5) Ree ee eas 
HEPTAPSOGASTER MANDIBULARIS NOCTIVAGI Clay 
Heptapsogaster stultus noctivagus CLAY, Proce. Zool. Soc. London, ser. B, 1937, 
p. 188, fig. 2d. (Hosts: Crypturellus n. noctivagus, Brazil, and C. noctivagus 
dissimilis, British Guiana.) 
The fact that the chaetotaxy given for the male of this race agrees 
with that given by Miss Clay for the male of H. stultus proves beyond 
doubt that the male is a race of mandibularis and not of ¢newpectata 
(equals stultus of Clay) (see notes under H. mandibularis stultus 
Clay), while her statement that the seventh abdominal segment in the 
female is that of H. mandibularis Carriker proves that the female be- 
longs also to a race of mandibularis, since all known races of inew- 
pectata have a similar seventh abdominal segment, as do all races of 
mandibularis and temporalis, 
The description of the chaetotaxy of the female agrees with that of 
the female of mandibularis, and not of inexpectata, but there is one 
slight discrepancy between Miss Clay’s description and my own obser- 
vations. She gives for segment ITI, two hairs and one spine on the 
pleurite, which should be (according to my description), one hair and 
two spines. The spine next to the hair on this pleurite is longer than 
the other spine, and a trifle slenderer, but nevertheless a spine, rather 
than a hair. 
Miss Clay has mentioned also a character in this species that I had 
never noticed before, that is, the presence of a “scent” gland in the 
female on the inner edge of pleurite V, which is incised to receive it. 
Further investigation shows that not only H. mandibularis possesses 
this character, but also H. inexpectata and H. temporalis, the gland 
in the latter being of a thickened crescent shape, instead of flowerlike 
as in the male. 
