70 
Psyche 
[June-Sept. 
ened. Tergites not bisulcate. Ventral pores in a large 
transversely elliptic area. Coxal pores of last segment two 
on each side. 
Genotype. — L. mundus Chamberlin, sp. nov. 
Leptynophilus mundus, sp. nov. 
The type as at present, after preservation in alcohol, is 
fulvous and shows no dark pigmentation in the deeper tis- 
sues except in connection with the ventral glands. 
Head small, widest behind and narrowed forward, an- 
teriorly rounded. Antennae short, attenuated beyond 
middle; first 5 or 6 joints longest, those beyond very short, 
the ultimate about equal in length to the two preceding 
taken together ; a little curved at middle but not truly genicu- 
late. 
Claws of prehensors when closed not attaining the front 
margin of the head by a considerable distance. Chitinous 
lines absent. Anterior margin of prosternum gently in- 
curved. Claws smooth. 
Body constricted a little back of head as usual. Dorsal 
plates not bisulcate, clothed with numerous but not dense 
short setae. Last dorsal plate anteriorly broad, strongly 
narrowing caudad. 
Spiracles round, small, very gradually decreasing in size 
from the first caudad. 
Ventral plates conspicuously setose. The ventral pores 
in a sharply defined, large, transversely elliptic area behind 
middle of sternite. 
Last ventral plate broader than long, strongly narrowed 
caudad. Coxal pores large, two on each side. 
Anal legs much swollen as usual in related genera, the 
ultimate article small, conically pointed. 
Pairs of legs, 51. 
Length, 23mm. 
Locality. — Panama: Barro Colorado Id. 
Differs from Tseniolinum setosum in the longer, more 
slender antennae, in the relatively broader and shorter last 
sternite, and in the larger size, the length of T. setosum 
being given as 13 mm. 
