IDOLOCORID^. 379 



Species 4. — Idolocoris errans. 



Gerris errans, Wolf, Ic. Cim. IGl, tab. 16, fig. 155 (1802). 



Capsus COLLARIS, /'«//. Hem. Suec. i, 125, 19 (1829); .^e^^. Ins. Lap. 



279, 10 (1839); Mei/er, Caps. 83, 63 (1843); 



Eirschb. Caps. 42, 24 (1855). 

 Cyllocoris collaris, Hakn, Waiiz. ii, 121, fig. 203 (1833). 

 PoLVMERUs (Blepiiaridopterus) collaris, Kolen. Mel. Eut, ii, 107, 81 



(1845). 

 Capsus (Capsus) collaris, Flor, Rliyii. Liv. i, 483, 9 (1860). 

 DiCYPHUS errans, Fieh. Eurcp. Hem. 325, 1 (1S61). 



Elongate, narrow, parallel, shining. Gray or yellowish-wliite, very 

 sparingly clothed with short, stiff, somewhat erect, brown 

 hairs. Corium with minute bro'wn spots, in each of which is 

 set a hair ; anterior margin ciliate ; 3rd pair of legs very long. 



Head. — Croivn with 2 diverging piceous streaks extending from 

 behind the eyes to the antenniferous processes ; sides of the neck 

 piceous; Face; central and side lobes generally black. Antennce 

 brown, clothed with very short, fine, brown hairs ; 1st joint scarcely 

 longer than the head, frequently red, extreme base and apex nar- 

 rowly white or pale yellowish-white, next the base with a blackish 

 ring ; 2nd 3 times as long as the 1st, extreme base and apex white 

 or pale yellowish-white, sometimes pale brown in the middle; 3rd 

 narrowly white or yellowish-white at the base. FJj/es red-brown. 

 Itostrum yellowish ; base and apex more or less brown. 



Thorax. — Pro7iotum brown or piceous ; from between the callo- 

 sities a pale streak extends nearly to the posterior margin; disk 

 behind the callosities finely wrinkled transversely, and with a shal- 

 low central channel ; sometimes the pronotum is entirely grayish- 

 yellow, sides darker. Scutellum brown, sides from behind the trans- 

 verse channel with a white or yellowish-white triangular spot. 

 Elytra diaphanous ; Claviis ; inner margin and suture, except the 

 base and apex of the latter, black ; disk with a fuscous cloud next 

 tljp inner margin ; Corinm ; anterior margin very narrowly gray- 

 brown ; apex, as also that of the 1st nerve, with a triangular, 

 piceous-brown spot ; inner angle fuscous ; Cuneus ; apex more or 

 less brown or red-brown ; Membrane pale gray, iridescent, with a 

 narrow pale-brown streak extending from below the inner cell- 



