126 N. C. AGR. EXP. STA. BUL. 239 
Dilobopterus adocetus, NEW SPECIES 
FIGURE 106, PAGE 143 
Length of male 11.0-12.4 mm. Head with median length varying from ap- 
proximately four-tenths to almost six-tenths interocular width, and from one- 
fourth to slightly more than one-third transocular width, disk without a 
transverse concavity before ocelli; other head characters as in D. fenestratus, n. 
sp. Pronotum transversely rugose; forewing with veins distinct throughout; 
hindwing with jugal lobe not enlarged. Other external characters as in 
fenestratus. 
Pygofer strongly produced, setae arranged much as in D. syrphotdulus 
(Jacobi); posteroventral margin without a process; plates not extending 
posteriorly as far as pygofer apex, much as in syrphoidulus; style and con- 
nective as in D. politus (Schmidt); aedeagus with a pair of lateral processes 
near apex; paraphyses as in illustration of politus (fig. 107A). 
Color of anterior dorsum dull golden yellow to brownish yellow, crown 
varying from unmarked, through faintly marked with black, to marked with 
black as in accompanying illustration (fig. 106a); pronotum with a dark 
brown transverse stripe bordering posterior margin, with a much narrower 
and usually less distinct transverse stripe, occasionally incomplete, before mid- 
length, remainder as in ground color of crown or light brown. Forewing 
ae 
= 
a 
= 

FIGURES 86, 87.—86, Dilobopterus disparulus, n. sp., holotype (A from lateral 
view): p, Face. 87, D. ponerus, n. sp., holotype (A from lateral view). 
