312 





313 



FIGURES 310-314. Limnophilus ma r m o ra t us Curt.: 



310 — head, dorsal; 311 - labrum; 312 - pronotum; 313 - thoracic horn and sternites; 314' 

 sheath of penis and genital appendages of male pupa (314 - after Siltala). 



Labrum (Figure 31 1) with 2—3 light dots on a dark, median spot. 



Pronotum (Figure 312), as in L. p o 1 itu s, dark over more than anterior 

 third; groove in anterior third without dark stripe in middle; a dark area 

 at posterior margin; punctation as in L.politus; posterior margin with 

 2 dark stripes, fused in middle. Mesonotum uniformly dark brown, with 

 black punctation, and coarse, reddish black streaks at posterior angle. 

 Tergites of metathorax dark brown, distinct. 



Prosternite (Figure 313) strongly sclerotized, large, reddish brown, 

 blackish near lateral margin, with large dots at posterior angles. Horn 

 brownish at end, narrow. Mesosternites in form of 2 transverse, brown 

 plates with large dots. Metasternites represented by pale or brownish 

 dots at sides of a brownish, membranous part. 



234 



