(473; 



FIGURES 758 and 759. Mystacides longicornisL. : 



758-pronotum (A), mesonotum (B), mesopleuron (C); 759 -posterior margin of mesothorax, 

 abdominal segments 1 — 2. 



Case made of sand grains and detritus, straight, slightly tapering 

 posteriorly, usually with a longer piece of detritus or a thin rod (Figure 

 762). 



Pupa. Length 8 — 11 mm. Antennae of male pupae coiled about 4 times 

 around body, antennae of female 2—2.5 times. Labrum (Figure 763, A) and 

 anteclypeus slightly oblong, with curved sides; anterior margin with 4 short, 

 strong, light setae on brown tubercles; 2 anterior, submarginal setae; 

 median seta strong, light yellow, neighboring seta shorter and thinner. 



Mandibles (Figure 763, B) with wide basal part, concave laterally, with 

 beaklike apex; blade almost straight, coarsely serrate; lateral setae short, 

 strong. 



593 



