186 
Psyche 
[June 
1.5 (female) the length of intercubitus; nervellus intercepted between 
its upper 0.33 and 0.40; metacarpella with a series of 6-7 widely 
spaced hamuli. 
Type Species: Stangepelma argentinwn, new species. 
Discussion: Within its tribe Stangepelma shows special af- 
finity to Heteropelma Wesmael and Tanvpelma Townes, with 
which it shares such characters as a high lamella between the 
antennal sockets, a complete postpectal carina, and sharply bent 
hind tarsal claws. From the foregoing genera, it differs in its 
single mid tibial spur, basally very slender and apically inflated 
hind femur, second male hind tarsal segment with a weak depres- 
sion below (Tanypelma has no depression, Heteropelma a flat- 
tened and impressed area), and by having a distal series of 6-7 
widely spaced hamuli (12-18 closely spaced hamuli in Hetero- 
pelma and Tanypelma). The single mid tibial spur is a feature 
shared among Theriini only by the eastern Palaearctic Braehv- 
nervus Uchida 1 and Brachynervus also resembles Stangepelma 
because it has only 7 widely spaced metacarpellan hamuli. How- 
ever, Stangepelma and Brachynervus do not seem closely related, 
since Brachynervus has many features which set it off from all 
other theriines (mesoscutum with a transverse suture before scuto- 
scutellar groove, postpectal carina absent, occipital carina joining 
hypostomal carina instead of mandibular base, intercubitus far 
basad of second recurrent vein, and propodeum globose with its 
apex raised away from the hind coxae so that the gastric socket 
is distant from the hind coxae). Apart from the features already 
mentioned, Stangepelma agrees almost perfectly with Townes’ 
(1971, p. 158) description of the Palaearctic and Indo-Papuan 
Heteropelma but shows the following additional differences from 
the eastern Nearctic Tanypelma: apex of clypeus truncate in- 
stead of weakly convex, lower tooth of mandible 0.3 as long as 
upper instead of only a little shorter than upper, scutellum gently 
instead of strongly convex, front and middle tarsal claws with a 
90 degree bend instead of with a moderately strong curve, and 
nervellus intercepted definitely above instead of near the middle. 
‘According to Gauld (1976, p. 28), the Malayasian Heteropelma perornatum 
Cameron “sometimes has the inner tibial spur very reduced and although it appears 
to have a single spur on the mid tibia, two are in fact present.” 
