Scolytid proventriculi 



1 D e n d r o c t o n u s p i c e a p e r d a Hopk., end vit-w. x i lo 



2 Tomicus caelatus Eich., internal aspect ol flattened segments. 



x I lO 



3 Tomicus c a c o u- r a ]"> h u s Lee, internal aspect of flattened seg- 



ments. X I lO 



4 Pityogenes species, internal aspect of flattened segments, x i lo 



5 Xylocleptes species, internal aspect of flattened segments, x no 



6 Tomicus calligraphus Germ., internal aspect of flattened seg- 



ments. X I lO 



7 D end roc ton us tereljrans Oliw, internal as[;ect of flattened 



segments, .x iio 



8 To m i c u s p i n i .Sa\', internal aspect of flatteniMl segmcMits. x no 



7,jO 



