rii\i"i'j:i{ \\i. 



()i!i)i:u \ I. iiiirKiJoniiH \. 



Thii onlcr rrabracM tho*** inoortH whow Torrwini^ or winiif-covcrs arc coriaffous at the 

 l>nv» HHil mcnjl>riiiu>M« at the h]h'X : the hcxly is drpreswd ; antpnnfl> rloni^atrtl anil flliforni ; 

 niut lti(> tiioiitli, wlilrli is |>lnr«-«l on the inferior |>art of t))i- head, is i*n>nms<-i<iatc. M«-la- 

 niorpliosis M'liiiroinplele, with nn nrtivc ]>u|>a stati-. 



It is tho IIi.MiPTKHA of most Anit-riran ami >'nclish authors ; hut HiTCBon^iRA is tlie 

 (lesicnation J'H frrnMi Jiy WfjjxwixiD, for reasons wliich make it ai'i>far to In.- the more 

 appn>l>riate name of the two. 



The order is divideil into two sections : I. Hvdrocorisa, the residents of water; 2. 

 AtRocoRisA, thitse which breathe air. 



We liave three families at h-a.st under the first section, the Notoxkctidje, Ncpidjc, and 

 GAL(;t'i.it>.t:. 



The Genus NoTo?»rms is not uncommon in the springs that fumi.sh the city of AllMiny 

 with water, and which rise in a high sandy plain some four miles west of the city. 



NoTONEtTlil . 



Body much ilepressed ; mouth promuscidate, short, and composed of two joints ; antennie 

 lost in the s|>«'cimen ; eyes ovate : the forelegs advanced. and tlie tan<i armed with a 

 single two jointed claw ; the middle and )><.>.sterior three-jointitl ; the thir<l minute, 

 and the last armed with two claws. Color brown or olive brown ; beneath lighter 

 than above, uniform, and without ornaments or spots. Thorax in the form of a segment 

 of a triangle ; niiddlc impressed with a longitudinal line, crosseil by a transverse 

 groove ; margin of the thorax ciliate. Scutelium large ; Imisc rather greater than the 

 height : the jxisterior pair of legs obscurely Iwured with brown; f">nlegs raptorial, 

 and without luirs. Ix>ngth an inch and a quarter. Swims rapidly u|>on its back, and 

 is carnivon»us. 

 Tlic damage which the .Vvtontctus occasions, consists in the destruction of young fl>b, 



or /ry : in this resjXrct it is as voracious as the Dylicvt. 



