3o ENTOMOLOGICAL "NEWS. [Jan., '09. 



Described from two apterous females taken on hard maple 

 (Acer saccharum) at Bosky Dell, Illinois, October 2Oth, 1908, 

 by Lindley M. Smith, to whom the species is respectfully in- 

 scribed. 



This little species is closely allied both to T. amcricanus m.* 

 and T. angusticeps m.f, resembling them very closely in gen- 

 eral appearance and in the form of the antennal segments. 

 These three species form a compact group, easily distinguish- 

 able from all other described North American species of the 

 genus by the form of the eighth antennal segment, which is 

 conspicuously lanceolate and narrowly pedicellate. The fol- 

 lowing key will facilitate the separation of these three species : 



A. Head one-quarter as long as wide ; bristles slightly dilated at apex ; 

 intermediate antennal segments oblong, pedicellate , antennal 

 segments 3 and 4 each with two sense cones on outer sub-api- 

 cal surface; tube 6 as long as head. Length 1.4 mm. 



T. angusticeps m.f 

 AA. Head about as long as wide ; all bristles pointed. 



a. Head slightly wider than long; intermediate antennal segments sub- 

 globose, pedicellate; antennal segments 3 and 4 each with a 

 single sense cone on outer subapical surface; tube .6 as long as 



head. Length i.o mm T. smith! sp. nov. 



aa. Head slightly longer than wide; intermediate antennal segments 

 oblong, pedicellate; antennal segments 3 and 4 each with two 

 sense cones on outer subapical surface; tube nearly as long as 

 head. Length 1.7 mm T. americanus m.* 



Genus PHYLLOTHRIPS m., 1908. 

 Phyllothrips umbripennis sp. nov. 



Fig 3- 



Female. Length about 1.9 mm. Color nearly uniform black; an- 

 tennal segments 3 and 4, and basal half of 5, usually yellow; fore 

 wings grayish black in basal half; hind wings clouded at base, and with 

 a blackish longitudinal vein reaching about to middle ; marginal ab- 

 dominal spines black, prominent. 



Head about 1.3 times as long as wide, widest across or just behind 

 eyes, thence narrowing evenly to base; lateral and dorsal surfaces trans- 

 versely striate, sparsely, briefly, and scarcely visibly spinose; postocular 



*Bull. 111. State Lab. Nat. Hist., Vol. VIII, Art. II, p. '366, fig. 3, a, b, 

 and c; 1908. 

 fLoc. cit, p. 367, fig. 4, a and b. 



