1948] 
Wharton — -New Peruvian Chiggers 
89 
genuala = a pointed striated sensory seta on the genu, 
microgenuala = a microsensory seta on the genu, 
mastitarsala = a whip-like seta on the tarsus, 
mastitibiala = a whip-like seta on the tibia, 
mastigenuala = a whip-like seta on the genu, 
mastifemorala = a whip-like seta on the femur. 
• By combing the names of the setae as given above with 
the appropriate Roman numeral to indicate the leg on 
Fig. 1. Euschongastia phylloti n. sp. A, dorsum; B, venter; C, dorsal 
view of gnathosoma ; D, ventral view of gnathosoma ; E, scutum ; F, leg I 
with specialized setae of genu, tibia, tarsus, and pretarsus ; G, similar view 
of leg IX; G, similar view of leg III. (Magnification of each figure, indi- 
cated by the line associated with the figure, represents 50 microns.) 
which the seta or setae are found the statement, “ three 
whip-like setae on tarsus III” can be reduced to “three 
mastitarsalae III”, or the statement,” a blunt striated 
sensory seta on tarsus I ’ ’ can he reduced to ‘ 4 spur I. ” A 
second and perhaps more important reason for naming 
