249. Holotype male from Alberta in 
CNC. 
Chromatomyia involucratae , Griffiths, 
1974a: 51. 
A single male can now be recorded from 
Colorado, Clear Creek County, Mt. 
Evans, Doolittle Ranch, 9,800 feet, 
15. VII. 61 (C. H. Mann), in CNC. The 
species has previously been known only 
from two series in Alberta and British 
Columbia, both caught on Lonicera 
involucrata . It was originally 
thought that these flies could be 
associated with long, greenish mines 
that were present at both localities, 
but Griffiths (1974a: 51) has 
subsequently recorded a Paraphytomyza 
sp. from such mines, and the host of 
involucratae thus remains to be 
confirmed, although it will almost 
certainly prove to be Lonicera 
involucrata . 
involucratae is a relatively large 
species, with the second costal 
section long, three times the length 
of the fourth. The aedeagus is 
distinctive, in having the supporting 
sclerites of the dorsal lobe large, 
with pronounced curvature toward the 
apex (figs. 1259, 1260). 
Chromatomyia luzulivora Spencer, new 
species 
(Figs. 1288, 1289) 
Head. Frons twice width of eye, not 
projecting above eye; 2 equal ors or 
upper marginally shorter, 2 strong 
ori; gena extended at rear, almost 0.5 
height of eye, parafacial prominent; 
3d antennal segment small, round. 
Mesonotum. 3+1 dc, acr irregular, in 
4 rows in front. 
Wing. Length in male 2 mm, 2d costal 
section twice length of 4th. 
Color. Frons uniformly brownish 
black, orbit paler, grayish; antenna 
black; gena dark brown, face black; 
mesonotum matt blackish gray, side of 
thorax similar; legs black, foreknee 
narrowly yellow; squama gray, margin 
and fringe black. 
Male genitalia. Aedeagus (fig. 1288) 
with supporting sclerites of dorsal 
lobe straight in side view, relatively 
long, fused below, narrowly divergent 
apically (fig. 1289); strongly de- 
veloped, slightly curving sclerite 
each side of base of ejaculatory duct, 
this curving dorsally toward apex of 
dorsal sclerites; sperm pump minute, 
blade unpigmented. 
Host/early stages. Unknown. 
Holotype m. , Colorado, Lake Co., 
Independence Pass, 11,500 ft, tree 
line, 31. VII. 61 (J. G. Chillcott), in 
CNC. 
Remarks. This species belongs to the 
£. T- uzu l ae superspecies and to the 
first of the two "aedeagus types," 
with long supporting sclerites 
(Griffiths, 1980: 31), which include 
three species known only in Europe. 
Only a single species has been 
described from North America, C!. 
cygnicollina Griffiths, 1980, from 
Alberta. C . luzulivora differs from 
the six known species in having the 
frons uniformly dark (ranging from 
yellowish above to entirely yellow in 
the other species) and the costal 
ratio greater than in any other 
species in the group. The greatest 
previously recorded is 2.2 in C. 
tschirnhausi Griffiths, 1980, from 
Norway, but even in this species the 
second costal section is normally 
about 2.5 times the length of the 
fourth. 
Chromatomyia mitchelli Spencer, new 
species 
(Figs. 1290, 1291) 
Head. Frons exceptionally broad, 
almost 3 times width of eye, not 
projecting above eye in profile; 2 
ors, upper variable, apparently equal 
to lower on one side (lower partially 
broken) but distinctly shorter on 
other side, 2 ori; gena broad, slight- 
ly more than 0.33 height of eye, para- 
facial prominent; 3d antennal segment 
small, round, faintly pubescent. 
327 
