1976] 
Henry — Larval Owlflies 
13 
that contact antenna scape, flanked anteriorly by two (very rarely, 
three) stout serrate setae and posteriorly by an enlarged dolichaster; 
a few other, smaller dolichasters may also be present on surface 
of the tubercle. Dorsum of head and body more or less clothed 
with small to medium sized dolichasterine setae; ventral surfaces 
bear more profuse, smaller dolichasters that are shaped like goblets 
(figure 8-c). Thick mat of very fine, tangled threads also present 
over entire dorsum of larva, including dorsal surfaces of all setal 
fringes on head and scoli. Four of five pairs of stout, tooth-like 
digging setae present terminally on ninth abdominal segment. 
Species Description: Ululodes mexicana (McLachlan), new 
larval association. 
Measurements: Length of mature larva, 14.60-18.75 mm, mean 
length = 16.00 mm. Length of head capsule, 3.30-3.78 mm, mean 
= 3.54 mm; width of head capsule, 3.40-3.90 mm, mean = 3.60 mm. 
Chaetotaxy: Setae composing fringes on lateral margins of head 
capsule and edges of scoli showing tendency toward gradual distal 
thickening with truncate tips (figure 8-a); not lanceolate. Ocular 
dolichasters projecting well beyond edges of stemmata and easily 
visible from above. Dolichasters on dorsal surface of head abun- 
dant, fairly evenly distributed, and cavlate (figure 8-b-2); never 
peg like (figure 8-b-l) or confined to occipital lobes. Dolichasters 
on dorsal body surface of the flared and curved type (figure 8-a), 
rarely parallel sided or pointed. 
Pigmentation: Head with prominent but diffuse oval to heart- 
shaped spot of dark pigmentation centered just behind (but encom- 
passing) anterior tentorial pits (TAP). Labral lobes, antennal 
tubercles, and tips of ocular tubercles also darkly pigmented. Oc- 
cipital lobes noticeably more pale than the rest of the head capsule. 
Prothoracic notum without obvious pattern of pigmentation. 
Ontogenetic Variation: 
The first instar Ululodes larva (figure 4) differs considerably 
from the mature larva. The head capsule is more quadrate than 
trapezoidal. The antenna is more than twice the length of the ocular 
tubercle, bears 12 or 13 flagellomeres, and emerges from a poorly 
defined tubercle. The jaws are only slightly falcate, and the proximal 
tooth rather than the distal tooth is the smallest of the three. All 
setae are relatively longer and less numerous than in mature larvae: 
the central dorsal aspect of the head capsule in particular is nearly 
