216 



Pupa. — Length, 12-15 mm. Pale yellowish testaceous; head, 

 thorax, and base and apex of abdomen pale brown, slightly shining. 

 Head without armature, front view as in Figure 2, Plate XXXIV. 

 Thoracic respiratory organs reddish brown, similar to those of im- 

 matura) wings and legs as described for this genus. Abdominal seg- 

 ments 3-8 each with a conspicuous transverse band of short setulae 

 on anterior margins of both dorsal and ventral surfaces, the bands not 

 connected on lateral margins; the 2 basal ventral bands widely in- 

 terrupted below legs, the apical one also interrupted, the others com- 

 plete ; abdomen without distinct spiracles except a pair on dorsum at 

 base of apical segment which are connected with stout tracheae; 

 apical segment as in Figures 3 and 4, Plate XXXIV, basal 3 segments 

 and the penultimate dorsally slightly brownish yellow, probably owing 

 to the presence of chitin; apical segment almost entirely brownish 

 yellow. 



Described from larvae and from pupal exuvia of specimens ob- 

 tained by the writer from a species of fungus (Agaricus) in the fores- 

 try of the University of Illinois, at Urbana, in September, 191 5. 



Limnobia immatura Osten Sacken 



Limnobia immatura Osten Sacken, Proc. Acad. Nat. Sci. Phila., 1859, p. 215. 



Pupa (PI. XXXIII, Fig. 11). — Length, 20 mm. Color as in 

 preceding species. Differs from it in size, in the structure of the 

 respiratory organs (PI. XXXIII, Fig. 14), and in that the median in- 

 terruption of the setulose band is on the seventh ventral segment. 

 There is also a slight but distinct difference in the structure of the 

 front of the head, as shown in Figures 1 and 2 of Plate XXXIV; 

 but this may be due to the different sex of the specimens — which in 

 large measure accounts for a difference in the structure of the apical 

 abdominal segments of the specimens (PI. XXXIII, Figs. 11, 12). 



Described from pupal exuvium of a female. The pupa was found 

 near a bush in Cottonwood Grove, about four miles east of LTrbana, 

 111., March 23, 191 1, and emerged four days later (C. C. Dillon). 



Subfamily PEDICIINAE 



With the exception of the larvae of two species, I have no materi- 

 als representing this subfamily, and depend upon the published de- 

 scription of Dicranota by Miall and of Pedicia by Beling for charac- 

 ters of the pupae. 



