1976] 
Henry — Larval Owlflies 
19 
Setae on anterior and distal margins of primary scoli stout and 
flared (figure 8-a); posterio-basal setae on each scolus are longer, 
sharp-tipped, and more nearly plumose than serrated (figure 8-f). 
Non-scale-like setae mostly dark pigmented except all pale on labral 
margin and predominantly pale on margins of body scoli; several 
to most dolichastes on anterior distal half of anteriormost scolus 
prominently darkened. 
Pigmentation: Head uniformly dark brown, entire body light 
brown to reddish brown; darker tints present dorsally in cuticle be- 
neath clumps or thick patches of setae. Overall drosal pattern exhib- 
its longitudinal medial stripe, transverse segmental bands, and mid- 
lateral patches that strongly suggest the venation of a small dead leaf. 
Ontogenetic Variation: 
The first instar Ascaloptynx larva (figure 7) differs from the ma- 
ture larva in several obvious respects. The ocular tubercle is pedun- 
culate and nearly ovoid rather than tapered and bears a poorly 
developed setigerous secondary tubercle. The antenna is relatively 
large, projecting well beyond the tip of the ocular tubercle, but 
arises from a “tubercle” that can be identified as such only by the 
presence of stellate-tipped setae; nine flagellomeres are typically 
present rather than 12 or 13. The jaws are not falcate and bear rela- 
tively long mandibular teeth. Primary body scoli show little dorso- 
ventral flattening and no tendency toward basal constriction; the 
secondary scoli are inconspicuous and resemble small tubercles. 
All setae are relatively longer, less numerous, and of fewer morpho- 
logical types than in mature larvae: the distally flared dolichaster 
predominates, and no minute scale-like setae are present. Two 
stellate setae rather than three are more likely to be found on each 
antennal “tubercle,” with stout serrate setae usually absent from 
this structure. Terminal digging teeth on abdominal segment nine 
are also lacking. 
The second instar larva more nearly resembles the third than it 
does the first, although its antennae are still relatively large and 
the ocular tubercle remains somewhat pedunculate. Additionally, 
constriction of the bases of the abdominal scoli is not so marked as 
it will become in the mature larva. 
Figure 6. [opposite page] Ascaloptynx furciger, details of head capsule of mature 
third instar. A = anterior dorsal aspect, B = anterior ventral aspect. Scl = scale-like 
seta; other labels as in figure 3. 
