116 
Male genitalia with aedeagus (figs. 1312, 1315) 
having mesophallus shorter, broader 
116 (115). Host. Ilex decidua , I. serrata . Larva forming 
irregular blotch mine (fig. 1313) P. ditmani Kulp 
Synopsis. Generally as in P. ilicicola but 
smaller, wing length at most 1.9 mm, mesonotum 
distinctly darker gray; 2 d costal section 2 - 2.5 
times length of 4th; male genitalia with aedea- 
gus (figs. 1311, 1312) having distal tubules 
widely diverging, mesophallus relatively short 
and broad, not tapering. 
Biology. Larva forms small blotch mine on lower 
surface of leaf in 1 st instar (fig. 1313), in 
2d and 3d instar forming irregular linear 
blotch mine on upper surface, feeding slowly 
throughout summer from July until October, 
univoltine. 
Distribution. District of Columbia. 
References. Kulp, 1968: 11; Steyskal, 1976: 767 
(fig. of aedeagus). 
Host * Hex aquifolium , I. cumulicola , I. opaca. 
Larva forming long, serpentine mine (fig. 
1316)- t>. opacae Kulp 
Synopsis. As in JP. ditmani ; male genitalia with 
aedeagus (figs. 1314, 1315) having distal 
tubules slender, widely diverging in apical 3 d; 
mesophallus longer, more slender, ventral lobe 
short, broad, heavily pigmented. 
Biology. Leaf mine linear in all 3 instars, 1st 
appearing toward end of May (Maryland). 
Distribution. Delaware, District of Columbia, 
Florida, Maryland. 
References. Kulp, 1968: 21; Spencer and Steg- 
maier, 1973: 119; Steyskal, 1976: 767. 
117 (82). 1 ors (at most minute hairs dorsally) H 8 
2 ors (upper at least 0.5 length of lower) 127 
118 (117). Squama 1 fringe pale, yellow or white 119 
Squamal fringe dark, black or brown 122 
119 (118). 3d antennal segment round 120 
3d antennal segment elongated 121 
120 (119). Frons matt black J>. masoni Spencer, n. sp. 
Synopsis. Frons matt black, mesonotum shining 
black; wing length in male 2.25 mm, 2 d costal 
section 2.56 times length of 4th; male geni- 
talia with aedeagus as in figures 1317, 1318, 
tubules of distiphallus short, broad. 
Host/Early Stages. Unknown, probably Ranuncu— 
laceae. 
Distribution. Georgia. 
Reference. Part 2, p. 318. 
Frons yellowish brown 
7 P. clematisella Spencer, n. sp. 
Synopsis. Orbit with 1 ors, 2 ori; mesonotum 
matt gray, acr in 4-5 rows; legs black, knees 
yellowish; wing length 1.75-1.9 mm in male, 2 d 
costal section twice length of 4 th; male geni- 
215 
