talia with aedeagus as in figures 1319, 1320, 
tubules of distiphallus long, slender. 
Host/Early Stages. Clematis . Larva feeding in 
stem (details not recorded). 
Distribution. Arkansas, Connecticut. 
Reference. Part 2, p. 312. 
121 (119). Wing and veins distinctly yellow; 2d costal 
section long, 4 times length of 4th 
P. pulchella Spencer, n. sp. 
Synopsis. Closely resembling saskatoonensis 
but distinguished by yellow veins and wing, 
longer 2d costal section and larger; male geni- 
talia with aedeagus as in figures 1321, 1322. 
Host/Early Stages. Unknown, probably Ranuncu- 
laceae . 
Distribution. Virginia. 
Reference. Part 2, p. 320. 
Wing hyaline, veins brown; 2d costal section 
shorter, at most 2.5 times length of 4th 
P. saskatoonensis Spencer 
Synopsis. Frons dark brown to black, projecting 
above eye; 1 strong reclinate ors, 3 inclined 
ori; all antennal segments black, 3d elongate; 
mesonotum deep black, only moderately shining, 
acr irregularly in 3 or 4 rows; legs black, fem- 
ora with knee distinctly yellow on foreleg, 
less so on midleg and hindleg; abdomen black; 
squama and fringe yellow; male genitalia with 
aedeagus as in figures 1323, 1324 (also 
Steyskal, 1972b: fig. 5); sperm pump large, 
blade wider than long. 
Host/Early Stages. Unknown, almost certainly 
Ranunculaceae . 
Distribution. Michigan, Wisconsin; new record: 
New York, Lewis Co., Tug Hill, 1 m. , 1.VI.66 
(L. Knutson, CUI) ; Canada. 
References. Frick, 1959: 433 (as P. nigri - 
pennis ) ; Spencer, 1969a: 272; Steyskal, 1972b: 
4 (as I>. cudu) ; part 2, p. 321. 
122 (118). 2d costal section long, 3-4 times length of 4th- 
123 
2d costal section shorter,, at most 2.5 times 
length of 4th 124 
123 (122). Acr in 2 rows; tarsi dark, little paler than fem- 
ora P. minuscula Goureau 
Synopsis. Frons broad, twice width of eye, 
normally brownish black, sometimes paler, 
ochreous on upper half; 1 strong, outcurving 
ors, 1 strong inclined ori; orbit black; anten- 
na black, 3d large; mesonotum deep black, 
shining from rear, appearing more matt from 
front; legs largely black, only foreknee some- 
times yellowish; squama yellowish gray, margin 
and fringe black; male genitalia with aedeagus 
(fig. 1325) having distiphallus a single tubule, 
slightly curving ventrally at apex; ventral 
216 
