1909] GIRAULT — CHALCIDOID PARASITES 75 
EXPLANATION OF FIGURES. 
1 to 7. These are sketches showing roughly the position and size of the tu- 
bercles. No attempt was made to find all the minute setae not arising from tubercles, 
except in Fig. 2. They represent a single segment, as if it had been unrolled and 
spread out, in each case showing the part extending up from the leg, just beyond the 
mid-dorsum. An arrow indicates the middle line. The annulets are indicated in 
some of them. 
Fig. 1. Metathorax of Pieris daplidice, stage II. 
“2. A middle abdominal segment of the same. The primary setae are 
numbered, and the glandular ones indicated. 
Fig. 3. Metathorax of Pieris daplidice, stage IV. 
“4, Middle abdominal segment of the same. ‘Tubercles iv and vy are no 
longer distinct. 
Fig. 5. Metathorax of Pieris brassicae, stage II. 
“6. Middle abdominal segment of the same. 
“7. Middle abdominal segment of Pieris brassicae, stage II. 
“8. A tubercle, with base of the seta, from stage I of Pieris daplidice. 
“9. Atubercle of Pieris brassicae. In P. rapae it is quite the same. 
THE CHALCIDOID PARASITES OF THE COCCID EULECANIUM 
NIGROFASCIATUM (PERGANDE), WITH DESCRIPTIONS OF 
THREE NEW NORTH AMERICAN SPECIES OF THE 
SUBFAMILIES ENCYRTINAE AND APHELININAE 
| FROM ILLINOIS. 
BY A. A. GIRAULT, URBANA, ILLINOIS. 
Tue Terrapin Seale, Eulecanium nigrofasciatum (Pergande), since its recorded 
discovery in 1898 by Theodore Pergande, has become gradually more and more 
knowa in economic entomology, so that at present it is recognized as a pest of some: 
importance. Although it has heretofore been known to be attacked by parasites, 
none of these have as yet been specifically recorded in the literature and therefore I 
