EXPLANATION OF PLATE II. 



Unless otherivise stated, all the figures are enlarged, the increase in size usually indicated. 



Fig. 1. — Caloptenus femur-ruhrum, newly hatched, or in first larval stage, from side; 



1 h, same, while j^et pale, from above ; 1 a, antenna of same. 

 Fig. 2. — Second stage; 2a, antenna; 2&, thorax, from above; 2c, thorax, from side. 

 Fig. 3. — Third stage; 3a, antenna; 3&, thorax, from above; 3c, thorax, from side. 

 Fig. 4. — Fourth stage, or first pupal stage ; 4 a, antenna ; 4 b, thorax, from above ; 4 c, 



thorax, from side. 

 Fig. 5. — Fifth stage, or true pupa ; 5 a, antenna ; 5 &, thorax, from above ; 5 c, thorax, 



from side ; 5 d, pupal exuviae, or last skin shed. 

 Fig. 6. — Sixth stage, or mature insect, the figure showing a typical male — natural size. 

 Fig. 7. — Typical female, with wings expanded — natural size. 

 Fig. 8. — Antenna of mature insect. 



Fig. 9.— Enlarged thorax of mature insect, from above ; 9 a, same, from side. 

 Fig. 10. — Anal characters of male, from above; 10a, do., from side; 10 6, do., from 



behind. 

 Fig. 11. — Anal characters of female, from side. 



