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[Vol. 90 
Figure 5. Monotoma producta, dorsal view of larva. 
modified setae, outer sclerotized patches on lateral margin visible 
dorsally, segment 9 with two lateral aciculate setae on each side, 
setae on segment 10 all aciculate. Spiracles annular, not raised on 
tubes. Legs well-developed, with five segments, coxae widely separ- 
ated, tarsungulus with one seta. 
Hinton (1945) is the only author who has provided a complete set 
of figures describing Corticaria. The form of the mandibles and 
mala, and the four stemmata to a side seem to characterize this 
genus. The most obvious difference between species are the setal 
forms. The long apically expanded setae of valida are most similar 
to those in C. pubescens (Gyllenhal) (Hinton 1945). Other larvae 
have been poorly or briefly described, and comparison with those 
species is not attempted. 
Acknowledgments 
I would like to thank Dr. Alan L. Baker, Mary Lou Turner, and 
David Gadoury for their efforts in the identification of the two 
