44 



No. Ill 



Before M. aryxna insert 



M. NEUMOEGENi STEPHENSi Skinner. 



Megathymus neumoegeni stepliensi Skinner, Ent. News XXIII, 126, (1912). 



"Male. Color of wings grayer than in neumoegeni. Upperside with the 

 markings as in the Huachaca mountains, Arizona, form of neumoegeni but 

 cream-color instead of orange-yellow. On the underside of the secondaries the 

 spots are larger than in neumoegeni and more accentuated; there is a large 

 coalesced spot near the center of the wing and light spots parallel to the margin. 

 Type locality. La Puerta, eastern edge of San Diego Co., Calif. Oct. nth, 191 1." 



Of this race we have received several specimens of both sexes 

 through the kindness of Mr. L. E. Ricksecker. It is readily recognized, 

 as pointed out by Dr. Skinner, by the pale creamy maciilation of the 

 tipper side. We might add that the row of spots on the upper side 

 of primaries in the S is much reduced in size as compared with the 

 Arizona specimens; the 9 is even more marked in this respect, the 

 band being very similar to that of 5 aryxna as shown in our fig. i, 

 Plate I, and not uniting with or even touching the spot at the end of 

 the cell as is customary in neumoegeni 9 's. In all our specimens the 

 maculation of the under side of the secondaries is very distinct. This 

 may be the species figured by Wright (Plate XXXII, fig. 483) but it 

 is impossible to be certain as the figure shows a general pinkish suf- 

 fusion that makes determinatoin difficult ; we expect to figure a 9 in 

 a later number of the Contributions. The 3 genitalia are very similar 

 to those of neumoegeni and aryxna; the main point of difference is in 

 the penis, which shows a terminal group of 13 minute spines on each 

 side, being a considerable increase over the number shown by both 

 of the other species; the 9 organ presents points of distinction in the 

 shape of the Alae, which lack the chitinous hood and are merely sharp 

 curved ridges which gradually merge into the thin chitinous area sur- 

 rounding the postvaginal plate. 



p. 34, to list of localities for M. yuccac culoradeusis add, San 

 Diego, Calif. (Ricksecker). 



