1920] Parshley — Hemiptera Collected in Western New England 141 



Lygseidse. 



Nysius thymi (WolfF). 

 Nysius ericce (Schilling) . 

 Ischnorhynchvs geminatiis (Say) . 

 Cymus angustatus Stal. 

 Ligyrocoris diffusus (Uhler). 

 Ligyrocoris contractus (Say). 



A northern species found but once before in Massachusetts. 

 Perigenes costalis Van Duzee. 

 Plinthisus americanus Van Duzee. 



Long-winged form 9 • — 'General form more broadly and evenly 

 ovate than in the short-winged phase. Posterior lobe of pronotum 

 somewhat elevated posteriorly, distinctly broader than anterior 

 lobe, the lateral margins strongly sinuate posteriorly. Hemielytra 

 but slightly broader at middle than at base; claval suture very dis- 

 tinct, slightly depressed together with adjacent area; corium acute 

 at apex, the lateral margin straight in basal half, rounded apically, 

 the membranal (apical) margin oblique, slightly convex; membrane 

 hyaline, extending slightly beyond apex of abdomen, broadly 

 rounded at apex, with four rather irregular veins evanescent just 

 beyond middle of membrane. Length, 3.67 mm.; width, 1.63 mm. 



Phymatidse. 

 Phymata erosa (Linne). 



Nabidfe. 

 Nobis subcoleoptratus Kirby. 

 Nahis limbatus Dahlbom. 

 Nabis roseipennis Renter. 



Anthocoridse. 

 Triphleps insidiosa (Say). 



Miridse. 

 Adelphocoris rapidus (Say). 

 Lygus pratensis var. oblineatus (Say). 

 Lygus vanduzeei Knight. 

 Lygus pabnliyius (Linne). 

 Plagiognailms spp. 



Veliidce. 

 Microvelia americana (Uhler) . 



