Discal cell small, last section of M 3+4 3 times 
length of penultimate (fig. 1028) 
M. griff ithsi Sehgal 
Synopsis. Minute black species, agreeing closely 
with M. interfrontalis but generally smaller, wing 
length 1.2-1. 6 mm; male genitalia with aedeagus 
(figs. 1029, 1030) having slender tubules distally, 
curving dorsally; surstylus long, narrow, with 
strong projection at midpoint (fig. 1031, A), inner 
margin of epandrium with double band of strong 
sclerotization, each with short, stout bristles 
(fig. 1031, B). 
Host/Early Stages. Probably Carex spp. Details of 
leaf mine not confirmed. 
Distribution. Northern California, Oregon; Canada. 
References. Sehgal, 1971: 342; Spencer, 1981: 336 
(as scutellata) ; Tschirnhaus, 1981: 332. 
Genus Paraphytomyza Enderlein 
Paraphytomyza Enderlein, 1936: 180. 
Type of genus: Phytagromyza luteo - 
scutellata de Meijere, 1924 (as 
Phytagromyza xylostei Robineau- 
Desvoidy, 1851). 
This genus has in common with / 
Phytomyza the costa extending only to 
vein R 4+5, but the orbital setulae 
are erect, reclinate, or lacking 
(never proclinate) ; the outer 
crossvein is occasionally lacking but 
is normally present, with the discal 
cell small (fig. 1034). 
The original generic name, 
Phytagromyza , proposed by Hendel and 
followed by Frick (1952a, 1959) for 
North American species, is sunk in 
Cerodontha , where the type-species, 
Agromyza f lavocingulata Strobl, was 
found to belong, following study of 
the male genitalia (Nowakowski, 1962: 
100 ). 
The larvae are leaf or stem miners in 
the families Capr ifoliaceae, 
Dipsacaceae, Rubiaceae, and Salicaceae. 
Six species are known in the 
Salicaceae in Europe and, with the 
male genitalia differing in structure 
from those of the other species in the 
genus, further revisionary work will 
doubtless lead to their being 
segregated in a separate genus. 
Paraphytomyza populicola (Walker) has 
been recorded in Ontario (Spencer, 
1969a: 208) and is believed to have 
been introduced early in the 1960's. 
Of the eight described species known 
in the United States, four have been 
reared from leaf mines, either on 
Lonicera or Symphoricarpos . An unde- 
scribed species from Montana has also 
been reared from Lonicera . 
The genus is exclusively holarctic, 
with 30 species known in Europe and 10 
in North America. Species placed in 
Phytagromyza in the Afrotropical and 
Oriental Regions are not congeneric 
with Paraphytomyza , but all belong in 
Pseudonapomyza . 
One new species is described here from 
Colorado, and Paraphytomyza / 
luteoscutellata , previously known only 
in Canada and Europe, apppears to be 
widespread in the Northern States. In 
the key, two undescribed species are 
included that cannot be adequately 
diagnosed with the limited material 
available. Another species is known 
in Alberta feeding on Lonicera , P. 
spenceri Sehgal, 1971. 
162 
