PROC. ENT. SOC. WASH., VOL. 20, NO. 4, APR., 191* 87 



mundus. scutellatus. 



1. General color piceous black. 1. General color reddish-luteous. 



2. Antennae 18-jointed. 2. Antennae 20-jointed. 



3. Middle fovea broad shallow, in- 3. Middle fovea narrow, connected 



distinctly connected with the with the broader ocellar de- 



ocellar depression. pression. 



Type-locality. Siskiyou County, California. One female. - 

 Type Cat. No. 21724 U. S. Nat. Mus. 



Neodiprion pinetum (Norton). 



Lophyrus le Contii (sic!) Kirkpatrick, Ohio Farmer, Cleveland, vol. 9, 



No. 47, Nov. 24, 1860, p. 269. 



Lophyrus pinetum Norton, Trans. Amer. Ent. Soc., vol. 2, 1869, p. 328. 

 Lophyrus abbotii of most American Authors not Leach. 

 Lophyrus pinetorum Dalla Torre, Cat. Hym., vol. 1, 18.94, p. 297, an 



emendation. 



The type of pinetum (Norton) has been lost or is in such a state 

 of preservation to be of little value. In the collection of the 

 American Entomological Society (Philadelphia) there is a pin 

 with part of the thorax and first abdominal segment which may 

 represent part of the type material. As this fragment is entirely 

 unsatisfactory a female reared from larvae collected on white 

 pine (Pinus strobus) at Reading, Pennsylvania, and now in the 

 National Museum has been considered as neotype. This female 

 agrees with Norton's original description. 



The description of the larva given by Kirkpatrick agrees in all 

 important points mentioned with the larva of the neotype. This 

 species is the common one which feeds on white pine and has been 

 continuously referred to as abbotii Leach. This is due, at least 

 in a large measure, to the erroneous determination originally 

 made by Riley, 9th Ann. Kept. Ins. Missouri, 1877, p. 29, 32, fig. 

 11, and other references. The specimens reared by Riley are in 

 National Museum and are the same species as the neotyps of 

 pinetum. 



There is considerable variation in this species, even in adults 

 reared from the same larval colony. The female antennae vary 

 from 18 to 20 joints; the middle fovea may be obsolete, or small 

 and well defined; the scutum may lack the brownish spots; the 

 dorsal aspect of the tergum may be uniformly ferruginous or dis- 

 tinctly piceous and slightly paler at the base. 



Neodiprion virginiana, new species. 



This species is closely allied to pinclnni (Norton), Inn inny be 

 readily separated by the n:irnmvr emargination of the last 



