16 



BrATHINID/E 



HELOPHORIDiiC * 



Helophorus 



20791. aquaticus L. 61-461. 



fide Darlington 27-174 Me. Mass. 



Helophorus 



20702. needhami D'Orch. 29-79 



N. Y. 

 2746. linearis Lee. 



pallens Csy., syn. fide D'Orch. 29-89 



HYDROCHIDiZE * 



Hydrochus 



20793. equicarinatus Blatch. 2S-62 



Pla. 



Hydrochus 



20704. currani Brown 29-108 Ont. 



HYDROPHILIDiiE * 



Fall 26. 30; Winters 26, 27; Darlington 27; Blatchley 28; D'Orchymont 

 28, 29; Brown 29. 



Hydrophilus 



In the 1920 catalogue, 2789, 2790, 2791 

 were placed in Hydrous, following; Zim- 

 mermann. The researches of Mr. Mutchler 

 indicate that this was an error. See 3rd 

 Supplement. 



Tropisternus 



20795. mexicanus Cast. 40-54 



fide Hatch 30-22 Okla. 



20796. quadristriatus Horn Is 

 valid, fide Pall 30-238 Mass. 



(Ga.?) 

 2802. sublaevis Lee. Neb. 



Hydroblus 

 2810. synonymy should be reversed, 

 fide Winters 26. 



Sperchopsis 



genus valid, fide D'Orch. Cat. In- 

 dian Ins. 28-93 



cf. Hydrocyclus Sharp, fide Winters 

 26 



Crenitulus Winters 26-54 

 2817 type 



Anacaena 



2814. = limbata Fab. 92-82 



fide Winters 26. 

 19269. = bipustulatus Marsh., denied by 



Fall i. litt. 

 20707. globulus Payk. 98-188 



fide Winters 26 Conn. 



Enochrus 



19274. sublongtis Fall. n. n. 26-125. 



elongatulus || Fall 24-85 

 2839. = sellfe Sharp 82-75, 



fide Winters 27-24 

 20798. nigrellus Sharp 82-68 



fide Winters 27-24 Cal. 



Helobata 



2856. = striata Brulle 38-58, fide Win- 

 ters 27-25 



brathinid;e 



The genus Brathlnus, following Casey is associated with Omaliinse 

 by Bradley 30-04 ; Forbes 26-67 and 26-113 found resemblance in wing 

 folding to Scaphidiidse and retained the family name. The larva is 

 stlU unknown. 



According to larval characters, Helophorus and Hydrochus must be ranked as families of 

 Hydrophiloidea. By the larval characters also, Limncbius, Ochthebius and Hydraina are removed 

 from Hydrophilidae to form a family Limnebiida: in Staphyliooidea. 



