APPENDIX X. NARRATIVE OF PACKARD'S SECOND JOURNEY. [143] 



C. atlanis, from Wallula, smallest ^ , length of body and wings (folded), 25 ; wings, 

 17i ; hind femora, 13™"i. 



C. atlanis, from Wallula, largest <J , length of body and wings (folded), 28 ; wings, 

 20 ; hind femora, V^^^. 



C. atlanis i, from Portland, Oreg., length of body and wings (folded), 241-25; 

 wings, 17 ; hind femora, 13|i°°>. 



C. atlanis (^ (hilituraius), Vancouver Island, length of body and wings (folded), 23; 

 wings, 16 ; hind femora, 12^™°^. 



C. atlanis $ , Shasta Valley, Cal., length of body and wings (folded), 21f-25°'™. 



C. atlanis i , Lake Tahoe, Nev., length of body and wings (folded), 22™™. 



C atlanis $ , Maissachusetts, length of body and wings (folded), 24^™™. 



In the male genital armor, especially the male cerci, the Wallula male atlanis ap- 

 proaches C. S]}retu8, the cerci being shorter and broader than usual, and thus are like 

 those of C. sprctus. The environment of the Wallula atlanis is like that of C. spretus, 

 and for this reason, probably, it approaches it more than a mountain form like that 

 from Lake Tahoe, or the normal form Uke that at Portland, Oreg. The body of the 

 Wallula atlanis* is slender, but not light-colored as in atlunis iiom Redding and Shasta 

 Valley, California, or Michigan, which closely resemble in coloration C. spretus. We 

 have here at least a mixture of spretus with the genuine atlanis characters. (In one <? 

 from Wallula the hind tibiae are bluish ; in all the others, red.) 



In ^ C. atlanis from Portland, Oreg., and Amherst and Essex County, Massachusetts, 

 there are no differences in size and markings, or in the form of the hind femora, except 

 that in some Oregon specimens the tip of the abdomen of the Oregon examples is in 

 some cases higher and the notched portion rather narrower, but this difference is not 

 to be seen in any other ^ from Amherst, which is as high and narrow as in the Oregon 

 one. 



In ^ C. af?ani« from Portland, Oreg., and (? C afZams from Victoria, Vancouver Island, 

 ( C. bilituratus Walker) the var. Mlituratus is scarcely darker, but the spots on the fore 

 wings are much larger and more distinct^ the hind femora are shorter and thicker, 

 with darker patches and spots ; the body is shorter and thicker and the wings decid- 

 edly shorter, in the 9 not exceeding the tip of the ovipositor; the ^ genital armature 

 and abdominal tip are the same in both. 



I regard Walker's hilituratiis as simply a variety of C. atlanis, forming one end of a 

 series, of which the Wallula specimens and Redding, Cal. (and Michigan), specimens 

 form another, both reaembling, but in a different way, C. spretus^ the hiUturatus being 

 most unlike. 



I have, since my return, sent specimens of ^ and $ C. Mlituratus Walk, to R. 

 McLachlan, esq., of London, for comparison with Walker's types in the British Mu- 

 seum. He kindly made the comparison, and writes me : " C. hilituratus Walker is, so 

 far as the ^ is concerned, decidedly the same as your larger species. But I am not sure 

 that the presumed 9 of hilituratus is the same." As I took the two sexes in abund- 

 ance, and no other species of Caloptenus was to be seen^ I think that all the spe- 

 <amens I obtained were, without doubt, bilituratus. 



In comparing ^ atlanis from Portland, Oreg., and Massachusetts with a pair ( <? 

 and 9 ) from Redding, Cal. (presented by Mr. Scudder), we have in the latter, characters 

 that so closely ally it to G. spretus that Mr. Scudder and myself on a hasty examina^ 

 tion pronounced it simply a short- winged spretus, the form of body and pale coloration 

 and peculiar markings allying it very closely to C. spretus. Still it graduated into Shasta 

 Valley forms which I collected, and the anal cerci are narrow, quite unlike those of C. 

 spretus, the head is rather large, while the fore wings are differently spotted with dark 

 iu the 9 , but in the ^ the spots are as in the Shasta Valley atlanis. 



In a male atlunis from near San Francisco, received from Mr. H. Edwards, the anal 

 cerci are much as in C. spretus, being broad, but otherwise the specimen is very much 

 like those from Shasta Valley. 



The Shasta Valley C. atlanis $ are in most cases rather smaller and decidedly paler 

 than in those from Portland, Oreg., but as large as some of the Massachusetts ones. 

 The anal cerci are narrow. One C. atlanis from Shasta Valley, received from Mr. Ed- 

 wards, had blue hind tibiae ; in all the others they were red. 



Specimens frojn Glenwood, Nev,, on the east side of Lake Tahoe, were dark-colored, 

 and spotted much as in those ft om Portland, Oreg., and Massachusetts, and if mixed 

 u:i with them could not bo easily distinguished. The lateral claspers are narrow ; in 

 the Massachusetts specimens they are short and as broad as in the San Francisco ^ . 

 Oue (^ from Lake Tahoe had blue hind tibiae. 



In Caloptenus spretus from Iowa, Missouri, Colorado, and Salt Lake I find, in my 

 specimens, no essential difference in length of wing ; and they can bo easily distin- 

 guished ; not only are the wings much longer and the body larger, but the hind femora 

 are, as a rule, though not invariably, longer than in C. atlanis. The anal cerci are in- 



* Mr. S. H. Scudder has kindly shown me a specimen of atlaiiis like the Wallula form, fi'om the 

 Yukon Elver, where it was collected by Mr. Kcnnicott. 



