PLATE 19. 



HYDRODROMICA. 



Section \.—IIYDR0METEJNA. 



Family L— HYDROMETRID^. 



Genus 1. Htdeometra (p. 557). Fig. 1, E. gihhifera (p. 564) ; 

 1«, head iu profile and antenna ; lb, fore leg ; Ic, labrum ; 

 Id*, underside, $ ; Id* (^ , genital segments, ^ un- 

 derside; ld($, idem ^, side view; Id, idem $, side 

 view. 



Family 2.— VELIID^E. 



Genus 1. Velia (p. 569). Fig. 2, F. curretis (p. 571) ; 2a, head in 

 profile and antenna ; 2h, fore leg ; 2c, rostrum. 



Genus 2. Miceovelia (p. 573). Fig. 3 (J , J/. injgmcEa; 3 $ , apterous 

 form ; 3«, head in profile and antenna ; 35, rostrum ; 3c, 

 hind leg ; 3(/, fore tarsus. 



Section 2.—LUIN0BATINA. 

 Family 1.— LIMNOBATID^E. 



Genus 1. Limnobates (p. 575). Fig. 7, L. stagnorum (p. 576) ; 

 7rt, head in profile and antenna ; 7i, head seen from 

 above. 



GEODROMICA. 

 Section l.—HEBBINA. 

 Family 1.— HEBRIDtE. 



Getius 1. Hebeus (p. 265). Fig. 4, R.pusillus (p. 266); 4ff, antenna; 

 4&, elytron. 



AQUATILIA. 

 Section \.—APHEL0CHIRINA. 



Family 1.— APHELOCHIRID^. 



Genus 1. Aphelocheieus (p. 577). Fig. 5, .4. cestivalis (p. 578); 

 5rt, antenna; 5&, fore leg. 



Section 2,—NAUCOBINA. 

 Family 1.— NAUCORID^. 



Genus 1. Naucoeis (p. 579). Fig. 6, iV: Cimicoides (p. 580); 6a, 

 antenna ; 65, head in profile ; 6a, labrum and ros- 

 trum ; Qi$, genital segments ? ; 6 $ genital seg- 

 ments c? • 



