1970] 
MacLeod — Baltic Amber Neuroptera 
163 
what rugose; clypeal margin with two bilateral pairs of setae with 
large, blunt bases. Ocular area not borne on raised tubercle. Antenna 
arising from small antennal tubercle; scape large, prominent, dilated 
distally, diameter much larger than remainder of antenna. Jaws 
longer than head, curving inwardly for distal one-third of length; 
with four apparent teeth on medial surfaces of each mandible, the 
three proximal teeth with a seta at tip (fig. 7). Undersurface of 
head with the usual myrmeleontoid specializations of maxillae and 
labium (MacLeod, 1964). Anterior margin of postlabium very 
broad; divided pieces of prelabium (apparent basal palpimeres) sub- 
equal in length to basal palpimere; second palpimere length of 
basal palpimere, distal palpimere lanceolate, about as long as basal 
palpimere. Maximum head width 0.65 mm. 
Body: thorax with an elongate, finger-like scolus at sides of 
meso- and metathorax. All legs with tibia and tarsus unfused. 
Abdominal segments I- VI I each with two lateral scoli on each side, 
placed to form a dorsal series along edges of terga and a ventral 
series along edges of sterna; scoli of dorsal series shortest anteriorly, 
gradually increasing in length posteriorly; those of ventral series 
longest anteriorly, gradually decreasing in length posteriorly (fig. 5). 
Scoli of both thorax and abdomen simple tubular projections, not 
pedunculate. 
Both head and body, including scoli, clothed with smooth-sided 
setae of varying lengths, many with globular tips (figs. 5, 7). 
Judging from its size, the specimen is almost certainly in its first 
larval stadium. The material studied comprises a thin, triangular 
piece of clear yellow amber, numbered “25”, from the collection 
of the Geologisches Staatsinstitut of Hamburg, Germany. The piece 
also contains a thysanuran and a small nematocerous dipteran. 
Discussion. The few known larvae of the living species of 
Nymphidae have been poorly described and as a result the exact 
features by which they differ from those of other families of the 
Myrmeleontoidea have remained rather vague. Tillyard (1926) 
figured a form identified as Os?nylops pallidas Banks which he may 
have reared and this illustration has been widely copied. Although 
the larva of Nymphes myrmeleonoides Leach has apparently been 
known to several Australian entomologists (Froggatt, 1902; Till- 
yard, 1926; Gallard, 1935) it has never been properly described. 9 
9 Froggatt has given a poor figure of the larva of what is probably this 
species as fig. 36 in his book Australian Insects (1907) under the mis- 
identification of Porismus strigatus, a member of the Osmylidae! 
