PLATE 21. 



Section \).—CM'SLYJ {confhiued). 

 Family 11.— ONCOTYLID^ {coufimed). 



Genus 3. Amblttylus (p. 3SS). Fig. 3, A.affinis (p. 389). 



Family 19.— HALTICOCORID^. 



Genus 1. Halticocoeis (p. 478). Fig. 1, H. luteicollis (p. 480). 



Family 20.— STIPHROSOMID^. 



Genus 1. Stiphkosoma (p. 481). Fig. 2, S. leucocephala (p. 482). 



Section \^.—ANTH0C0RINA {continued). 



Family 2.— ANTHOCORIDyE {continued). 



Genus 7. Bbachtsteles (p, 505). Fig. 4, B. i^ilicornis (p. 506). 

 {See also PL 17, fig. 4.) 



Family 4.— CERATOCOMBll)^ {continued). 



Genus 1. Ceratocombus (p. 513). Fig. 5, C. muscorum (p. 514) ; 

 5«, head in profile ; bb, elytron ; t)c, hinder tibia and 

 tarsus ; 5f7, tarsus. 



AQUATILIA. 

 Section ^.— CORIXINA {continued). 



Family.— CORIXIDvE {continued). 



Genus 2. Cymatia (p. 613). Fig. 6, G. Borsdorffii (p. 613) ; 0^^, 



pala (J ; 6 ? , pala $ . 

 Genus 1. Comxa (p. 591) continued. Fig. 7, C. Geoffroyi (p. 593) 



underside $ . {See also PI. 20, fig. 5.) 



Section ^.—NOTONECTINA. 

 Family 2. — PLEIDtE {continued). 



Genus 1. Plea (p. 590) contimied. Fig. 8, P. minutissima (p. 591), 

 side view ; 8*, underside ; 8a, head in front ; SJ, head in 

 profile ; 8c, antenna ; 8(7, tibia and tarsus ; 8e, hinder 

 tarsus ; 8/J hinder leg. {See also PI. 20, fig. 3.) 



