Kinsey, Ay res: Varieties of a Gall Wasp 



157 



to dark brown or black at the posterior end; areolet of only moderate 

 size; cubitus apparently continuous; first abscissa of the radius dis- 

 tinctly angulate; radial cell at least in part open; length 3.5-4.2 mm. 



MALE. — Very similar to the males of other varieties; median groove 

 extending one-half the distance to the pronotum; abdomen with a de- 

 cidedly rufous tinge; areolet of only moderate size; radial area closed; 

 length 2.2-3.5 mm. 



GALL. — Similar to that of calif ornica, but the spines are all rigid, 

 not so dense, often rather sparse, and the filamentous and leafy covering 

 of calif ornica is lacking. 



EANGE. — Washington: Pullman (Melander). Probably confined 

 to the small and distinct region about the Coeur D'Alene and Moscow 

 mountains of the Idaho and Washington border. 



TYPES. — 4 females, 8 males, 3 galls. Holotype female, paratype 

 adults, and galls at The American Museum of Natural History; para- 

 type adults and gall with the author. Labelled Pullman, Washington; 

 Melander collector; American Museum numbers 24634, 24636, 24645, 

 and 24663. 



Structurally this variety is very closely related to cali- 

 f ornica and versicolor, but in melanderi the median groove is 

 decidedly longer than in either of the others ; the more rufous 

 specimens of nielanderi are much lighter and the more black 

 specimens are much darker than in calif ornica, while the in- 

 termediates do not show the distribution of rufous and black 

 characteristic of calif ornica. The gall shows distinct rela- 

 tions to the gall of calif ornica, but is spiny rather than mossy ; 

 this spinous gall resembles the gall of niultispinosa, leading to 

 Beutenmuller's mistake in handling this same material. 



Diplolepis tuberculatrix variety rubriderma, new variety 



FEMALE. — Is distinguished from the other varieties of the species 

 as follows: General color bright rufous without much black; head 

 rufous with black between the compound eyes and the mouth, and with 

 black extending posteriorly and medially from the posterior border of 

 each compound eye; first three segments of the antennas rufous brown, 

 remaining segments black; thorax wholly bright rufous; median groove 

 distinct for only a short distance from the scutellum, but often dis- 

 continuously evident well forward; abdomen bright rufous, shaded darker 

 posteriorly; areolet very large, larger than in any other Pacific Coast 

 variety; radial cell more or less open; first abscissa of the radius angu- 

 late, sometimes with a very long projection into the radial cell; radial 

 cell and adjacent areas shaded lightly; cubitus apparently continuous; 

 length 3.5-4.5 mm, 



MALE. — Very similar to the males of the other varieties; median 

 groove only discontinuously evident except for a short distance at the 

 scutellum; areolet very large, not as large as in the female; first abscissa 



