Mt. Evans can be referred with some 
confidence to _C. poae . The upcurved 
ejaculatory duct (fig. 1279) is shorter 
than in _C. fuscula s.s., it is equal 
in length to the supporting sclerites, 
and the bend at the distal end is 
tighter. 
In seven of the specimens recorded 
here the frons is reddish brown, but 
in three males (with genitalia 
identical to the other examined) the 
frons is dark brown to black. 
Griffiths treated as holotype a male 
with the frons ,, yellow-brown ,, and con- 
sidered a female with the frons dark 
brown bred from Des champs ia cespitosa 
as doubtfully conspecific. It is 
clear from the present series that 
there is a considerable color range in 
the frons of this species, and it 
seems probable that the female 
obtained by Griffiths is correctly 
referable to C. poae . 
New records. 
Colorado, Clear Creek Co., Mt. Evans, 
timberline, 11,700 ft, 2m., 22 and 
29. VII. 1961 (C. H. Mann); Mt. Evans, 
11,000-11,800 ft, lm., 22. VII. 61 
(J. G. Chillcott); Mt. Evans, Rocky 
slope, 13,000 ft, 1 f., 4. VIII. 61 
(J. G. Chillcott); Boulder Co., nr. 
Ward, Niuwat Ridge, 11,300 ft, 2m., 
28. VI. 61 (C. H. Mann); Boulder Co., 
Corona Pass, 10,600 ft, 1 f., 
6. VII. 61 (J. G. Chillcott); 
Nederland, Caribou, 10,000 ft, 1 f . , 
18. VI. 61 (B. H. Poole); Grand Co., 
Frazer, 9,500 ft, 1 f . , 7. VII. 61 (J. 
G. Chillcott); Park Co., Jefferson, 
9,400 ft, 1 f., 21. VI. 61 (C. H. 
Mann); all in CNC. 
Chroma tomyia regalensis (Steyskal), 
new status 
(Fig. 1302) 
Phytomyza regalensis Steyskal, 1972b: 
8. Holotype male from Michigan in 
USNM. 
Chroma tomyia regalensis , Griffiths, 
1980: 8 (as nomen dubium) . 
Three specimens were included in the 
type series, all from the same 
locality. Isle Royale, Keweenaw 
County, Mich. Steyskal in his 
description referred to variation in 
color, but Griffiths (1980) rightly 
noted that one of the paratypes, which 
has the notopleuron yellow, represents 
Phytomyza notopleuralis Spencer, 
1969a. The second paratype now lacks 
its genitalia and cannot be positively 
identified, although it may well be 
identical with the holotype. 
Griffiths (1980) pointed out that the 
collection date of the holotype, 10 
July 1957, is not as recorded in the 
description, which is 19 July. How- 
ever, this can reasonably be explained 
as a typing error. He also considered 
Steyskal' s illustration to be "incom- 
patible" with the aedeagus that he 
examined. KAS has also examined this 
specimen and finds that the aedeagus 
is damaged and the sperm pump is 
lost. The supporting sclerites are 
truncated, but nevertheless from what 
remains it appears that Steyskal' s 
illustration of this important 
character can be accepted as accurate; 
the prominent ejaculatory duct was 
seen (but is now also lost). The one 
point of inaccuracy is the failure to 
show the prominent, large sclerite of 
the ventral lobe (fig. 1302), which 
was not readily visible in the original 
specimen owing to inadequate clearing. 
Although an element of doubt remains 
about the status of this species, it 
seems correct to retain it as valid, 
but further material, if possible 
reared from the type locality, is 
obviously desirable for confirmation 
that it is indeed different from other 
related species feeding on Caprifoli- 
aceae. 
A male from Georgia, Chattooga County, 
Cloudland Canyon State Park, 8.V.52 
(0. Peck), in CNC, is tentatively 
identified as regalensis , and the 
aedeagus is shown in figure 1302 (see 
Steyskal, 1972b: fig. 8, ^) . 
330 
