REPORT OF THE STATE ENTOMOLOGIST 1917 97 
small numbers and in 1908 destroyed 60 to 75 per cent of’ the early 
Moore blossoms in one vineyard at Fredonia. It was generally 
distributed though not quite so injurious in 1909. 
Life history. This midge appears in early June with the unfolding 
of the blossom buds and deposits its eggs in the florets. These 

Fig. 26 Conta- RKigs27 Con- ' Fig. 28 Con- 
rinia johnsoni, tarinia john- tarinia john- 
fifth antennal seg- soni, fifthanten- soni, side view 
ment of male (en- nal segment of of male claws (en- 
larged, original) female (enlarged, larged, original) 
original) 
hatch shortly and the yellowish maggots attain maturity within a 
few days to a week after the injury becomes noticeable. Seven to 
eight or ten larvae may occur in one blossom bud. The larvae 
winter in the soil at the base of the vines, sometimes in large numbers. 

Fig. 29 Contarinia johnsoni, palpus of male (enlarged, 
original) 
The parent fly is a small, yellowish species, the mesonotum fuscous 
yellowish and the basal portion of the stem of the fifth antennal 
segment with a length one-half greater than its diameter. The 
lobes of the dorsal plate are broad, obliquely truncate and sparsely 
setose apically. 
