REHN AND HEBARD 239 



We believe M. c. dwnicola is more nearly the primitive stock of 

 the genus, but no demonstrable evidence can be given to support 

 this hypothesis. 



Specimens Examined: 120; 65 d^, 49 9,1 immature (f, 5 immature 9. 



Nevada: Crestline, Lincoln County, elevation 5900-6000 feet, IX, 4, 1909, 

 (R. & H.; quite numerous on Kunzia tridentata, growing in open forest of 

 juniper and occasional pinyon), 6cf, 3 9. Caliente, Lincoln County, eleva- 

 tion 4400-5200 feet, IX, 3, 1909, (R. & IL; on mountain slopes rising from 

 wash of Meadow Valley, on several species of bushes, one being Kunzia tri- 

 dentata), Id', 4 9. 



Arizona: Prescott, Yavapai County, elevation 5200-5600 feet, VII, 9-30, 

 VIII, 5-15, 1917, (O. C. Poling), IcT, 22 9, 2 immature 9 : VIII, 21-24, 1917, 

 (J. A. Kusche), 51 cf, 17 9,3 immature 9, type, allotype, and paratypes, 

 [Hebard Cln.]. Near Granite Peak, vicinity of Prescott, Yavapai County, 

 VIII, 17, 1917, (J. A. Kusche), 1 cT, 2 9, 1 immature d", [Hebard Cln.]. 

 Mount Union, Yavapai County, VIII, 15, 1917, (J. A. Kusche), 1 9 , [Hebard 

 Cln.]. Senator, near Mount Union, Yavajiai Count}', VIII, 11 and 12, 1917, 

 (J. A. Kusche), Scf, [Hebard Cln.]. 



Morsea californica tamalpaisensis Rehn and Hebard (Plate XII, figs. 4, 8 



and 14; XIII, figs. 4 and 11.) 

 1909. Morsea californica tamalpaisensis Rehn and Hebard, Proc. Acad. Nat. 



Sci. Phila., 1909, p. 421, figs. 3, 4 and 5. [Mount Tamalpais, Marin 



County, California.] 



This northern race differs from typical calijornicc of the Coast 

 Ranges and adjacent region to the southward, and M . c. dinnicold 

 of Arizona and southern Nevada, in both sexes in the more pro- 

 jecting facial angle (particularly in the male) when seen from the 

 side, in the more acute dorsal and ventral angles of the })asal 

 eye outline, in the slightly l)roader and more projecting fastigium 

 (particularly in the male) when seen from the dorsum, in liie pro- 

 portionately deeper infra-ocular portion of the genae, in tlic more 

 elongate and more spatulate antennae and in the more ample pro- 

 notum, while in the male the lateral lobes of the pronotum are 

 proportionately deeper, and the (•(•ici of the same sex are more 

 incrassate and more shaiply hooked distad. In inunature 

 specimens the differential features, particularly of the fastigium, 

 are less clearly indicated than in adults. 



Type. — cT ; Mount Tamalpais, Marin County, California. 

 Elevation 2100 feet. August 23. 1907. (M. Hebard.) [Heb- 

 ard Collection, Type no. 12.] 



TRANS. AM. EXT. SOC, XLIV. 



