166 Eighteenth Report State Entomologist of Minnesota — 1920 



The writer has found this species only on Larix laricina to which 

 tree the species is probably restricted in its breeding habits. The nymphs 

 are dark colored, clothed with numerous bristles, but not coated with 

 the white, wax-like material as is the case with the nymphs of p'micola. 

 Fifth-stage nymphs were reared to the adult stage in cages, both 

 nymphs and adults sucking sap from the tender larch shoots. The 

 species may be predaceous to a certain extent but this point was not 

 determined. It is interesting to note that the closely related but larger 

 European species, D. annulipes H. S., lives on larch (L. decidna) also. 

 Duda (1885), in some detailed observations on D. annulipes H. S. in 

 Bohemia, states that the nymphs fed on aphids which were abundant 

 on larch trees. 



Deraeocoris kennicotti new species 



Very much resembling and closely related to laricicola but having the dorsum 

 distinctly hairy ; structure of the male genital claspers very distinctive. 



$. Length (from collar to tip of membrane) 6.7 mm. Head: (missing in 

 the only available male). 9. Width 1.06 mm., vertex .5 mm., length .65 mm.; 

 front and lower part of face closely and rather longly pubescent, tylus more 

 prominent than in laricicola; vertex ecarinate, coUum broadly exposed, black 

 and shining, separated from vertex by a groove ; testaceous, bordering inner 

 margin of eye and projecting upon vertex, an arc each side of front com- 

 posed of transverse bars but not attaining base of tylus, spot at base and gem- 

 inate mark on basal half of tylus, juga, lorae, genae and bucculae, black. 

 Rostrum, length 2.07 mm., nearly attaining hind margins of middle coxae, dark 

 brownish to piceous, basal segment except narrow tip black. 



Antennae: (?) segment I, length .45 mm., testaceous, becoming black on 

 basal half; II, 1.58 mm., moderately slender, becoming thickened on apical one- 

 fourth but not attaining the thickness of segment I, rather closely beset with 

 exserted hairs which in length are equal to twice thickness of segment at 

 middle, testaceous, apical one-fourth blackish; III, .6 mm.; IV, .54 mm.; last 

 two segments brownish to blackish. 



Pronotum: length 1.34 mm., width at base 2.14 mm., anterior angles .8 

 mm., collar .63 mm. ; disk moderately convex, punctures moderately coarse and 

 rather closely set, distinctly hairy, longest near lateral and anterior margins ; 

 lateral margins fairly distinct, nearly straight, anterior angles narrowed to little 

 wider than collar ; calli moderately convex, irregularis' delimited behind by 

 coarse punctures, separated at basal margin by a pair of deep punctures, black, 

 shining, pale between and just before, black color extending from latero-anterior 

 angles to front margin of disk ; disk grayish testaceous, punctures black, dark 

 color working out from the punctures ; propleura testaceous, black and opaque 

 surrounding dorsal half of coxal cleft, punctures grouped chiefly on the 

 dorsal half; xyphus nearly flat, pale pubescent, disk infuscated. Scutellum 

 convex, transversely rugulose on basal half, longly pubescent or hairy, black, 

 basal angles and apex pale, median line slightly indicated near apex. Sternum 



