234 FAiriLY i\'. — DVTiscjn.i';. 



A. vied in I lis S;iy has the same ranue ;!s the other two species, 

 and should therefon^ occur in the State. 

 iriT (1493). AciLius FBATEBNi's IhuT., Xew Eiii;. F:ir., 1N-!'.i, s. 



<'l(ise to xciiiiKiilcdtiin. but !i little lar^'er. darker .■aid more ilensely 

 [luijcturecl. Black lines of tbura.Y hn.adev; femora nearly Ijlaek. Length 

 13-14..1 mm. 



;\Iarion, Putnam and Viyo '-ounties; frequei:t. ilarch 14-Au- 

 siTi.st 12. In coitu on the earlier date, motionless, heads downward 

 and ventral sides together. When distur})ed they dived quickly 

 and hid in the leaves and trash at the bottom of the w^ater. 



XXII. Therm(jxectes Eseh. l-^'-Vi. (Gr., "a warm spring + 



swimmer.") 



Medium-sized, rather convex sjiecies resembling Acilius in ap- 

 pearance, b^it having the up])er surface x)olished, smooth, or with 

 but one to three dorsal rows of puncturj-s ; thorax without side mar- 

 gins; prosternal process broad and short ; hind tarsal claws unequal. 

 The front tarsi of the males bear two or three larger basal and 

 nrunerous small unequal disks oil the knver side. The basal halves 

 of elytra of females are marked with numerous short, deep elongate 

 punctures. Two species occur in the State. 



J."iS (l-iU7)). Thermonectes oex.\i leoi.us Aube, Sjiec Hen.. YI, ]s:-is. 140. 

 Ovate, suhcunyex. Above dull yellow; lieud with vertex and an II- 

 sbaped mark black; thorax with two transverse black lines, the front one 

 the narrower; elytra marked with many small black more or less confluent 

 dots, and an indistinct black b.ir behind the middle; under surface reddish- 

 brown. Elytra each with two discal rows of rather distinct distant puuc- 

 tures. Length ll..^i-13 mm. 



Vigo County; rare. ^May 2^. 

 4.'59 (14'.)i;)- TnKHMo.NEC'iEs i3.i.siLABis Ilarr., N. Eng. Far.. iM's. s. 



Ovate, subcoDvex. Ab.ve black ; head In front and a transverse line 

 on the vertex dull yellow: thorax with the sides and a narrow discal bar 

 of the same color; elytra with the margins, a sub-basjil cross-bar and some 

 vague markings on the sides .yellowish ; under surface reddish-brnwn or 

 piceous. the front and middle Iclcs paler. IClytra punctate as in oniaticulli-i. 

 Length 0-10 mm. 



Lake. ^Marshall and Putnam counties; scarce, ilay 2(1- Au- 

 gust 15. 



XXIII. r;[;APiic)ni-:i;ES Esch. ls:-):l fOr.. "write ^ skin.") 



This genus is close to Tlnniiinicct) s. The males have the front 

 tarsi as there, but have also the middle tarsi dilated and bearing two 



