'I'm: MiNi'i'i': Mii>-i,t»viN(; r.ioK'ri,KS. <»"') 



ll'ltl (:;;K)!M. Limnkius ovatis I.cc,, \'\'>)c. I'liil. Af.iil. N:it. Sci.. \'ll. 



isr)4, 117. 



Ovate, ralluM- aciilcly ixiiiitcd lu'liiiHl. Almve dark bruwu to iiict'<uis, 

 shining, couRi)i(Ui'iisly cldliuMJ wiili pale lirdwiilsh-yellow pubescence; an- 

 tenna' and less dariv reddisli-iirown ; under surface paler picoous. 'IMioi-ax 

 more (liau twice as wide as .lonir. sides straijj;lit, disk sparsely and very 

 liiiely iiuiiriatf, \\illi<uil median m'ndve. lOlytra nearly four times as Ion,:; 

 as liiorax and one I'ourlli wider, veiy linely and sparsely punctate. I'ro- 

 sternum wilii a deep median ui-oovc, w liidi rea<-lies neitlier liase nor apex. 

 I,en,u:tii 1."-' 1..") mm. 



Put nam {Nullity; seareo. April 17-October 17. A half dozen 

 .specimens were sifted durino' a severe droutli from de])ris just above 

 a hillside spiiiio. Known heretoforo only from llie "Southern 

 States. • ' 



Family XXXII. GEORYSSID.E. 



The Minute jMid-i.oving 1jeeti.es. 



A very few minnte, rounded, convex species comprise this fam- 

 ily. They have the surface i-oug'hly senlptured ; antenna' short, 9- 

 jointed. inserted under the sides of the front, the last three joints 

 formiiifi' an oval elub; head detiexed. eyes rcnmded; ])rostenium very 

 small; mesosternum short and -wide, slopin<? downward in front; 

 elytra entire; al)domen with five free ventral seii'iiients; front coxie 

 rather prominent, with a deep fisstire between them; middle coxai 

 oval, well separated; legs short, slender, tarsi -t-jointed, claws 

 simple. 



They live on the margins of streams and cover themselves with 

 a coating of mud or fine sand, so that they can be detected only 

 when they move. One genus represents the family. 



Georyssus Lat. 1807. (Gr., "earth f dig np.") 



This genus, sufficiently characterized above, is represented in 

 the United States by two known species. One of these, G. pusiUua 

 l.ec.. l)lack. Iliornx rugosely piniclate, strongly margined, wutli an 

 interrupted elevated line on side, elytra with rows of rather coarse 

 ])mictiires. length 1.7 iinn.. doutttloss occurs in the State, but no 

 verified Indiana specimen has been seen. 



Family XXXI II. I\\ IJ.\I D.E. 



TriE Ij()X'i-T()ED Watp'k Hrett.ep. 



This is a small i'a!iiil,\' ol' aipialic hoetlos which live i'ov the most 

 part in swit'1 running water, wheic tli;'y cling to Hat stones, logs or 



