IBY N. C. AGR. EXP. STA. BUL. 239 
Pygofer moderately produced with posterior margin broadly rounded, setal 
pattern much as in D. bimaculatus Signoret (fig. 81c), without processes; plates 
not extending as far posteriorly as pygofer apex, each triangular, gradually 
tapered from base to apex, with uniseriate macrosetae from base to apex; 
style extending posteriorly much beyond apex of connective, with distinct pre- 
apical lobe; connective short, broadly Y-shaped, strongly keeled, aedeagus 
symmetrical with an unpaired dorsal lobe which is separated from shaft by a 
deep concavity; paraphyses asymmetrical, consisting of two main branches 
each of which is branched at least once. 
Female abdominal sternum VII with a median posterior convexity which is 
truncate apically. 
Crown, pronotum, and scutellum black, crown with a median apical 
narrow inverted V-shaped marking, a pair of median basal vittae, a pair of: 
parentheses-shaped markings, one on each side, each interrupted by ocellus 
and connected basally with a narrow basal marginal stripe, inner ocular 
margins narrowly, a quadrate spot on each side anterolaterad of ocellus and 
connected with inner ocular marginal marking, arcuate markings in area of 
muscle impressions, yellow; pronotum with series of two to six (holotype) 

Gn Tiesg 
fe Mh Ny 4h 
Lully hp 
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FIGURE 92.—Dilobopterus demissus (F.) (see also fig. 91) (c, e, f, A, from specimen 
from Cachuela Esperanza, Bolivia; d, p, g, from Tingo Maria, Peru; 7 from 
Santarém, Brazil; 4 from lateral view): p, g, r, Aedeagus from lateral view. 


