No. 34-] HEMIPTERA OF CONNECTICUT: MIRIDAE. 479 



Pronotum with a distinct collar ; pronotum not gibbous posteriorly ; 

 sparsely punctured ; antennal • segment i shorter than the inter- 

 ocular space Monalocoris 



2. Pronotum posteriorly strongly gibbous, a longitudinal impression 

 at least in the middle ; embolium broadly expanded and flat, not 

 thickened Pycnoderes 



Pronotum posteriorly moderately gibbous, without longitudinal 

 impressions ; embolium narrow, thickened, rope-like Sixeonotus 



Monalocoris Dahlbom. 



M. filicis Linnaeus. 



C'imex filicis Linnaeus, Syst. Nat, Edn. io, i, 443, 1758. 

 Saunders, Het. Brit. Islds., 130, 1892. 



Length 2.5mm., width 1.4mm.; short oval, convex; brown to 

 dark brown, shining, pronotum finely punctured ; legs and 

 antennae pale yellowish brown. 



Occurs on shield fern (Aspidium spinulosum) . 



Huntington, 9 July, 1920 (P. G.) ; Lyme, 20 Aug., 1910 (B. H. W) ; 

 Putnam, 12 July, 1905 (H. L. V.). 



Pycnoderes Guerin. 



P. dilatatus Reuter. 



Acta Soc. Sci. Fenn., xxxvi, No. 2, 3, 1909. 



Length 4 mm., width 1.7 mm.; black, two spots on embolium, 

 cuneus, membrane, legs excepting apical half of posterior femora, 

 and antennae, white or pale yellowish; posterior area of pronotal 

 disk strongly gibbous, having three longitudinal impressions, 

 coarsely punctured. 



New Jersey. 



Sixeonotus Reuter. 



S. insignis Reuter. 



Ofv. Kongl. Sv. Vet.-Akad. Forh., xxxii, No. 9, 78, 1876. 



Length 3mm., width 1.7mm.; black; legs and antennae 

 yellowish white ; apical half of the membrane pale. 



Occurs on skunk cabbage (Sytnplocarpus) . 



Colebrook, 27 July, 1905 (H. L. V.). 

 S. tenebrosus Distant. 



Biol. Centr. Amer., Het., i, 441, 1893. 



Length 2.7mm., width 1.5mm.; black; only the coxae, tro- 

 chanters, and tarsi yellowish white; apex of the membrane pale. 



Maryland. 



Subfamily Cylapinae. 



Key to Tribes. 



1. Antennae exceedingly long, much longer than the body, segment i 

 thickened, the remaining segments thread-like ; pronotum laterally 

 not margined, or rarely obsoletely margined; calli short, scarcely 

 attaining the middle of the disk Cylapini 



