
Provincia Museum Rerorr. M 35 


FAMILY PTEROPHORIDAE. 
Genus TRICHOPTILUS Walsingham. 
; Trichoptilus Walsingham, P’teroph. Cal., Ore., 62, 1880. Characters: Forehead without tuft; 
ocelli obsolete. Labial palpi moderate, ascending. Fore wings cleft from before middle, both 
lobes slender, tapering, without anal angle. 
1. TricHorTitus PpyeMxus Walsingham, Pter. Cal., Ore., 64, 1880. A very small species 
measuring about 10 mm. in expanse. J’ore wings yery pale fawn, barred with white on both 
— lobes. - < 
Two specimens taken at Wellington, B.C. (Bryant), on 30-VI.-03 and 11-VII.-03 respectively. 
One specimen is without head or body and the other is simply pinned. There is no record of any 
other specimens having been taken since. An exceedingly rare species. The type series included 
three specimens taken near Millville, Cal., on July 11th, 1871. ‘Two of them are in the British 
Museum, the remaining one being in the Fernald collection at Amherst, Mass. One other specimen 
is in the U.S. National Museum. I believe that these six specimens are all that are known. 
Genus PTEROPHORUS Geoffroy. 
Pterophorus Geoffroy, Hist. Nat. Ins., LI., page 90, 1762. 
Oxryptilus Zeller, Isis X., page 765, 1841. 
Characters: Vorehead smooth without tuft; ocelli obsolete. Labial palpi moderate, 
oblique; second joint with a ventral apical tuft in one British Columbian species; third joint 
moderate. Tibize thickened with scales at base of spurs. Primaries bifid, cleft from about 
middle. Secondaries trifid, third feather with a well-developed tuft of black scales in the fringes 
of the inner margin. 
1. PreropHorus TENUIDACTYLUS Fitch. ‘Trans. N.Y. Agr. Soc., XIV., 848, 1854. Primaries 
dark brown with a coppery tinge, with a fine transverse white line across outer half of both lobes. 
First lobe with a broader stripe basad of this; second lobe with this stripe reduced to a small 
white patch. Palpi white with lateral brown stripes. Thorax white behind. Abdomen brown 
with diverging pairs of white stripes on the third segment. Fourth segment entirely brown 
- above; fifth mostly white. Beneath the abdomen is more heavily marked with white. Expanse, 
13-17 mm. ¥ 
Dyar in his “ Kootenai List” records two specimens of this species as having been bred 
from the thimble-berry (Rubus nutkanus). Specimens sent to me by Mr. J. W. Cockle from 
Kaslo as tenuidactylus turn out to be P’terophorus delawaricus Zell. The only authentic specimen 
that I have seen is a unique taken by Mr. G. O. Day at Quamichan Lake, near Duncan, on July 
14th, 1907. Dr. Lindsey tells me that the species is widely distributed and is quite common in 
some localities. 
2. Preropuorvus NINGoRIS Walsingham, Pter. Cal., Ore., 26, 1880. Fore wings dull brown 
with a greyish cast caused by the presence of white and fuscous scales. Both lobes crossed 
by two white lines; the outer one slender, the inner one broad. The lobes are somewhat narrower 
than in our other two species of this genus. Secondaries brown; third lobe paler, white beyond 
middle, with large tuft of blackish scales in fringes at outer third. VPalpi rather long and slender, 
oblique, dark brown, with both joints white-tipped. Virst spurs attached about three-fifths from 
base of tibia and reaching its tip. Mxpanse, 18-20 mm. 
Dyar records it from Kaslo and states that the larve were found feeding on a herbaceous 
plant with milky juice, Hieracium albiflorum. In our 1906 B.C. Check-list it is also recorded 
from Wellington, but the specimens labelled ningoris in the Bryant collection and from which the 
record was taken all prove upon examination to be delawaricus. Mr. Day took one female 
specimen at Cowichan Lake on June 18th, 1915. 
3. PTEROPHORUS DELAWARICUS Zeller, Verh z-b Ges. Wien., XXIII., 320, 1873. Fore wings 
bright golden-brown, with both lobes crossed by two inwardly oblique white stripes; the outer 
one slender, the inner one broader. T’alpi brown at the sides; the vestiture of the second joint 
produced into a point below, which almost reaches tip of third. Abdomen with diverging white 
dashes above. Expanse, 18-20 mm. 
This species is far more common than the other two. 1 have it from Vietoria (Blackmore) ; 
Fitzgerald (Carter) ; Goldstream (Blackmore) ; Wellington (Bryant); Fraser Mills (Marmont) ; 
Kaslo (Cockle) ; and Rossland (Danby); the dates ranging from June 16th to July 26th. 

