entire surface, among minute hairlike chetae; some of these setae are 

 divided; 4 short, strong setae and several small setae along brownish, oblique 

 stripe, 1 large seta near inner margin of stripe; a second seta situated 

 near anterior angle. 



532 



FIGURES 748 and 749. Amphipsyche proluta McL.: 



748 - labrum, dorsal; 749 - mandibles, dorsal: left mandible (A), right mandible (B). 



Anterior margin of metanotum completely light; anterior angles reddish 

 brown; lateral margin narrow, brown in the anterior third and posteriorly; 

 a broad, dark brown process in middle; posterior margin with a narrow, 

 light brown border; posterior median spot situated at a distance before 

 margin, small, reddish brown, with serrated anterior margin. Oblique 

 stripes on sides of sclerite narrow, brown, with light or dark dots; similar 

 large dots form several groups in each half of sclerite; 3 or 4 large, light 

 dots in posterior part, lateral to median spot. Hairlike chetae of anterior 

 row sparser than on mesonotum; 5 or 6 widely spaced, small setae on both 

 532 sides posterior to these chetae; hairlike chetae on surface of sclerite 



sparse in anterior third of sclerite; medioanal seta shorter than on meso- 

 notum; a short, strong seta anterior to it, nearer anterior margin; small, 

 sparse, light setae in region of forementioned chetae and along median line; 

 several very small, light setae and 5 short, light setae along oblique stripe 

 and on light space between stripe and lateral margin; one of these setae 

 near posterior margin of stripe divided. 



608 



