No. 34-] HEMIPTERA OF CONNECTICUT! MIRIDAE. 473 



L. olseni Knight, new species. 



Slightly larger than mimisculus, very similar in color but in form 

 more flattened above ; distinguished by the long and slender anten- 

 nal segment ii which is equal to length of pronotum plus dorsal 

 width of an eye. 



Female: Length 2.7mm., width 1.28mm. Head: Width 

 .76mm., vertex .34mm. Rostrum (imbedded in glue). 



Antennae: Segment i, length .17mm.; ii, .68mm., slender, 

 gradually thickened from base toward apex but not attaining 

 thickness of segment i ; iii, .34 mm. ; iv, missing. 



Pronotum: Length .43 mm., width at base i.oimm. ; clothed 

 with silvery scale-like pubescence and intermixed with more erect, 

 simple pubescent hairs. 



Hemelytra : Embolar margins moderately arcuate ; silvery scales 

 not so distinctly truncate at apex as in minusctdus. Membrane 

 pale fuscous, veins fuscous to reddish brown. 



Legs : Black, tibiae more reddish black. Venter sparsely beset 

 with silvery scales and interspersed with more erect simple 

 pubescence. 



Named in honor of the collector, Mr. Chris E. Olsen. 



Holotype: Female, 28 July, 1916, Pigeon Cove, Mass. (C. E. Olsen); 

 author's collection. 



Tribe ONCOTYLINI. 



Key to Genera. 



1. Pseudarolia connate with claw for their full length; claws broadly 



curved 2 



Pseudarolia attached only at basal angles and extending free and 

 parallel with them, usually to the tips ; claws short and strongly 

 incurved (p. 474) Macrotylus 



2. Pseudarolia extending beyond tips of claws (fig. 49: 13); rostrum 



not extending beyond hind coxae (p. 474) Lopus 



Pseudarolia not attaining apex of claw, extreme tips sharply 



incurved ; rostrum extending to middle of venter 



(p- 473) Megalocoleus 



Megalocoleus Reuter. 



M. molliculus (Fallen). 



Phytocoris molliculus Fallen, Hemip. Suec, 82, 1829. 



Macrocoleus moUicuhis Reuter, Hem. Gymn. Eur., ii, 226, 1879. 



Male: Length 5.4 mm., width 1.89 mm.; pale greenish white 

 to yellowish, disk of corium sometimes slightly darkened witb 

 fuscous ; membrane pale to f umate, smaller areole and a spot near 

 tip of cuneus darker; dorsum clothed with prominent, more or 

 less erect, pale yellowish to dusky pubescence ; rostrum attaining 

 middle of venter, blackish at apex. 



Female: Length 4.5 mm., width 1.91mm.; more robust than 

 the male but very similar in coloration. 



Occurs on Tanacetiim and Achillea in Europe. 



Beach Bluff, Mass. 



