76 



situated slightly posteriorly to 12 and 14; seta 15 black, large; seta 16 

 procumbent, short, light; 17 in posterior angle of frontal sutures. Ventral 

 seta 8 small, brown, at anterior margin; seta 18 small, light. 



Dorsal sclerite of labrum reddish brown, a large, dark brown spot near 

 the median indentation; sclerites of posterior angles narrow, curved sharply 

 downward. Setae 1, 2, and 4 in form of light spines, setae 3 yellowish, short; 

 setae 5 and 6 thick, dark brown, situated lateral to dark spot and the pit, 

 5 larger than 6. 



Mandibles short, black basally and on greater part of surface reddish 

 brown at apex (Figure 128); right and left mandibles with 4 large teeth; 

 yellowish chaetoids near dorsal margin; outer setae situated near base, 

 dark dorsal seta slightly larger than the short, light ventral. 



FIGURES 129 and 130. Ironoquia dubia Steph.: 



129 — anterior margin of head, gula, and part of maxillolabium, ventral; 130 — legs: foreleg, 

 anterior (A), midleg, anterior (B). 



Cardo (Figure 129) yellowish brown, with wide, black median margin 

 and a blackish brown, large spot in the distal part, a light seta anteriorly 

 near the outer margin, a brownish seta a short distance inward, both short, 

 thin. Submentum (Figure 129) largely membranous, with yellowish brown 

 sclerites anteriorly; a large, triangular, outer sclerite and 2 small, median 



90 



