THE HARLEQUIN CABBAGE-BUG : FOUR-LTN"ED LEAF-BUG. 271 



dressing of this laid on the surface of the ground when the croji is 

 cleared otf as a most useful treatment. Of course, until atmospheric 

 action has converted the poisonous matter into sulphate of lime, it is 

 hurtful to a serious extent to the crop, but if it can be laid on bare 

 ground and so left till purified it does good by killing the insects first, 

 and as a good manure afterward. 



If objected to in this form, I should think that it might be very 

 serviceable if thrown as a dressing, after about three months' exposure 

 to the a,ir, amongst the infested phmts. 1 find this lorni of application 

 very serviceable both against slugs and cabbage-moth caterpillars, 

 (''surface" caterpillars as we call them). There is enough scent of 

 sulphur still remaining to make the application very unpleasant to 

 ih.ise •• pests," and at this stage the gas-lime has become a safe manure. 



Paraffin is being found useful here either mixed with water, or as a dry 

 dressing in sand or ashes. Just enough paraffin to moisten the sand, 

 not clog it, and a very small quantity of this placed around the infested 

 plants has been found serviceable. 



I think that these two remedies might be of use from their scent 

 pervading the air, and also as they would make the ground a very un- 

 pleasant nightly resort or temporary shelter. 



Pcecilocapsus lineatus (Fabr.). 

 The Four-Lined Leaf-Bug. 



(Ord. HEMIPTERA : Subord. HETEROPTERA : Fam. PHYTOCORIDiE.) 



LygmuH lineaius Fabk. : " Ent. Syst. Suppl , 1798, p. 541, uo. 324 ; Syat. Khyng., 



1801, p. 234, no. 152.:' 

 Capsiis A-vittatus S.\y : Heterop. Hemip., 1832, p. 20 ; in Trans. N. Y. St. Agricul. 



Soc. for 1857 xvii, 1858, p. 784 (description). 

 Phytocoris bellus Emmons : Nat. Hist. N. Y.-Agricul., v. 1854, expl. pi. 30, f. 1. 

 Capms 4rvittaius. Wlsh.-Ril.: in Amer. Entomol., i, 1869, p. 246 (brief notice). 

 CapsuH quadrivittatus. Pack. : Guide Stud. Ins., 1869, p. 550 (mention). 

 Phytocoris lineatus Fitch : Thirteenth Rept., in Trans. N. Y. St. Agricul. Soc. 



for 1869, xxis, 1870, pp. 513-522 (general account). 

 Capsus (Phyt.) quadrivittatus. Le Bauon : First Ann. Kept. Ins. 111., 1871, p. 61 



(habits and description). 

 Capsiui (Phyt.) quadrivittatus. Saundkrs: in Rept. Ent. Soc. Ontario for 1871, 



(1872), p. 40 (food-plants and brief notice). 

 Lygus lineatus. Qlovek: in Rept. Cominis. Agricul. for 1875, (1876), p. 125, f. 33. 



(brief mention); MS. Notes Journ.-Hemipt., 1876, p. 46, pi. 1, f. 9 (habits» 



and food-plants). 

 Lygus lineatus. Uhler ; in Bull. U. S. Q.-d. Surv. Terr,, iv, 1878, p. 506 (distri- 

 bution) ; Pcecilocapsus lineatus, in lit., April, 1883. 

 Pcecilocapsus lineatus. Saundeus : Insects Injurious to Fruits, 1883, pp. 350-51, 



f. 364 (injurious to red currant). 



Attack upon a Currant Bush. 

 During the month of June, this species was very numerous upon a 

 black currant bush {Ribes nigrum) in my garden. Attention was first 



