266 NEW YORK STATE MUSEUM 
of the American Entomological Society, 12:269, and for which the 
name was afterward proposed. Since I have merely applied a 
name to one of Selys’s groups of species, Iregard G. dilata- 
tus as the type of Gomphurus, fixed by Selys’s usage. I have 
received from Mr. R. Weith, of Elkhart Ind., a cast skin that can 
belong to none other than this huge species. I give a descrip- 
tion herewith. 
Nymph. Length 38mm, abdomen 22mm, hind femur 7mm; 
width of head 6.2mm, of abdomen 10mm. _ Body strongly de- 
pressed, with wide abdomen; skin 
granulate, but little hairy except on 
the sides of the head, antennae and 
tibiae; antenna with its third segment 
thrice as long as the two first seg- 
ments together; labium rather small; 
median lobe in front with a deep semi- 
circular concavity, the sides of which 
are thinly fringed with flattened hairs 
or scales; lateral lobes strongly 
hooked on the outer end, and with 
about six low, irregular, obliquely 
truncated teeth on the basal two 
thirds of the concave inner margin; 
burrowing hooks of the fore and mid- 
dle tibiae very large, triangular, as 
Fig. 14 Labi f th h of ; ab j j 
qgilg, 4 Labiom ‘of the nymph of long as the greatest Gigiier =a 
tibia; dorsal hooks of the abdominal 
segments very rudimentary, on segments 7-9 only, becoming 
better defined on these segments successively; lateral spines on 
segments 6-9, strong, increasing in size posteriorly, those of the 
ninth segment twice as long as the tenth segment; superior and 
lateral appendages paler dorsally, the laterals one fourth 
shorter than the superior. 
Gomphus spicatus 
The nymph which I described as belonging to this species 
in Bulletin 47, page 459 does not belong to it. To what it may 
belong I am quite uncertain; perhaps, to G. furcifer; per- 
haps to some as yet unknown species. The description of the 
true G. spicatus nymph will be found in the Illinois State 
Laboratory of Natural History bulletin, 1901, 6:76. 
