230 ENTOMOLOGICAL NEWS. f June, '18 



To include the present species, Section 12 should be 

 changed to read as follows: 



12. Tarsal claws exceedingly long, those of each hind pair very 

 unequal, the inner about 4 times as long as the oiiter, 



annulicornis n. sp. 



Tarsal claws short, subequal on all legs 13 



Johannsenomyia annulicornis sp. n. 



9 . Black, slightly shining. Back of head and vertex brown, re- 

 mainder of head and its appendages yellow, apices of the short 

 flagellar joints, and all of the long joints except the bases of the first 

 two fuscous. Thorax, except prothorax, and abdomen black. Le.i^s 

 yellow, mid and hind coxae, hind femora except bases, hind tibia 

 on basal half, the extreme apices of basal four joints and all of apical 

 joints on all legs fuscous. Wings clear, region of cross-vein ir:- 

 fuscated. Halteres dark brown. 



Antennae very slender, longer than head and thorax combined. 

 Thorax densely short-haired ; mesopleurae with similar short hairs 

 on the greater portion of its surface. Legs very long, fore and 

 hind femora thickened apically, tibiae not setulose ; basal joint of 

 hind tarsi but little shorter than hind tibiae: apical tarsal joint on 

 all legs with a double series of long bristles on basal half ; claws each 

 with a short tooth at base, inner claw on hind tarsi about four times 

 as long as outer. Third vein ending about one-eighth from apex of 

 wing, first at about one-fifth of distance from cross-vein to apex of 

 third; media and cubitus forking before cross-vein. Length, 4 mm. 



Type. 9 , Illinois State Laboratory of Natural History. 

 Type locality, Lake MUa. Illinois, July 21, 1916 (C. A. 



Harb.). 



-^ 



A New Species of Macrosiphum (Aphididae, Horn.)- 

 H. F. Wilson, University of Wisconsin, Madison, Wisconsin. 



This insect occurs commonly on the leaves of Rhododen- 

 dron calif ornicnm Hook, along the coast region of Oregon. 

 The description was made from specimens collected at New 

 Port, Oregon, June 15, 191 5. Apterous, alate and pupal 

 forms were present in great numbers. 



T\pcs mounted in balsam on slides, in my collection. 



Macrosiphum rhododendri, n. sp. 



Apterous ziziparoiis female. General color pale green, a few pinkish 

 forms were also taken. The distal end of the fifth and the entire 



