Distribution. Florida; ? Colombia, Venezuela. 
References. Spencer, 1966d: 4; Spencer and 
Stegmaier, 1973: 25. 
4 (2). Me s on o turn greenish ^ 
Mesonotum predominantly black J. viridula (Coquillett) 
Synopsis. Frons not projecting above eye, matt 
black, lunule conspicuously silvery; 2 equal ors, 2 
ori; gena narrow, little more than linear; 2 strong 
dc, rarely a minute 3d, prsc strong; mesonotum 
moderately shining, with virtually no trace of 
metallic coloration; abdomen shining green; squama 
and fringe silvery; halter white; wing length from 
2.3 mm in male to 3.1 mm in female; male genitalia 
with aedeagus (figs. 330, 331) moderately sclero- 
tized basally , distiphallus long, slightly curving, 
unpigmented tubule, ventral sclerite well developed; 
hypandrium with extended apodeme (fig. 332); sur- 
stylus (fig. 333, A) extending downward, with about 
10 strong bristles at end and another group at upper 
corner; cercus (fig. 333, B) without bristles. 
Host/Early Stages. Quercus rubra , possibly some 
other Quercus spp. ; Castanea mollissima (Chinese 
chestnut), possibly other Castanea spp. Larva 
forming primary blotch mine; puparium (ex Castanea) 
yellowish brown, posterior spiracles widely sepa- 
rated, each with 3 or 4 irregular bulbs (fig. 334). 
Distribution. Georgia, Indiana, Massachusetts; 
new records: Kansas, Maine, North Carolina, Pennsyl- 
vania, South Carolina, Tennessee, Virginia; Canada. 
References. Frick, 1959: 359; Spencer and 
Stegmaier, 1973: 29. 
Note. It is possible that the population on 
gastanea represents a sibling species of J. viridula. 
However, there are no apparent differences between 
specimens from oak and chestnut externally or in the 
male genitalia and other postabdominal characters. 
Unfortunately no larvae or pupal cases obtained from 
oak appear to have been preserved in any museum and 
no comparison with those from chestnut has been 
possible. The significance of differences in 
the female terminal ia between specimens from oak and 
chestnut detected by G. Steyskal cannot be fully 
assessed at this time. 
5 (4). Upper orbital bristle shorter than lower (fig. 335) 
7 7 inaequalis (Mai loch) 
Synopsis. Wing length 2. 3-2.4 mm; upper ors always 
distinctly shorter than lower; frons matt black, 
rarely brownish; lunule whitish gray; 3d antennal 
segment large, distinctly longer than broad; meso- 
notum matt greenish gray; 2 strong dc, normally pair 
of strong prsc (these sometimes weak, present on one 
side or greatly reduced, similar to acr); abdomen 
shining greenish or faintly bluish; squama and 
fringe white, halter white; male genitalia with 
aedeagus (fig. 336) having distiphallus in form of 
paired, unpigmented tubules, forming almost complete 
55 
