ORTHOPTEROIDEA (PANORTHOPTERA) 



221 



Ir.coel 





div4 





mx.palp 





coel.6 



divl 





p.f'i 



-ab.4 



Fig. 136. — Carausius. A, cross section of anterior end of second thoracic segment. 

 B, longitudinal section of labral region. C, longitudinal section of antennal coelomic sac. 

 D, cross section of labial coelomic sac. E, longitudinal section of the third to the sixth 

 coelomic sacs. {ab. 4) Fourth abdominal appendage rudiment, {am) Amnion, {ant) 

 Antenna. {coeT) Coelomic cavity, {div. 1, 2, 3, 4) Anterior, ventral, lateral, and median 

 diverticula, (/r) Ventro-lateral furrow, {gc) Germ cell strand, {il) Inner layer, {mus) 

 Lateral myoblast, (ma:) Lobe of maxilla, (mx. palp) Maxillary palpus, {splm) 

 Splanchnic mesoderm, {ster) Sternite. {stom) Stomodaeum. {ter) Tergite. {yc) Yolk 

 cell, {ycm) Yolk-cell membrane. {Adapted from Leuzinger and Wiesmunn.) 



