230 GOMPHUS TMLATATUS, VASTUS AND LINEATIFRONS (oDONATa) 
L:i((iral foniiiiinl alxlomiiial ai)i)(‘ii<laf>;os [ciorroids” of froyiiioiis]; dil(italii.<< 
oiu‘-f()urlh slioiif'r I han Mio dorsal appondauio; ihisIiis, “oii(‘-t-liird shorl t'r”; 
liiiidtifroNs, “oM(‘-fourtli sliorlor.” 
It will 1)0 soon that, if tho voiy fow oxuviao oxaniinod for oaoli 
OIK' of th('S(' Ihroo spooios roi)rosoiit normal oonditions thoroin, 
(lildUitus and vastufi aro in most ros])oots moro noai'ly aliko 1 h;ui 
('illK'r of thorn is to linealifroNs. Tlu' ohi('f oxoojitions aro in 
siz(' and in th(' i'olativ(' lon<i;th of tho laU'i'al torminal abdominal 
ai)p(‘ndafj;('s. Prof. N('(‘dham has, in a U'ttor, oallod his Indiana 
('xuvia. into (pu'stion, wiitin**;: 
“d'lio listin' of 1 lie Iiyiiii)lial l;d)iuni of t his spocios tliat 1 ])ul)lishpd in New 
York State Miisciini Ihillet in (iS, pa^e 200, I now Ix'lieve was drawn from an 
injurt'd spi'cinx'ii hut unfortunatc'ly 1 ran not now find tlu* s])ecimon. 'I lie 
deep concavity of the median lobe may have been the result of an injury. 
At any rate, the nympJi from Spring Creek, C!a., had a dilfi'rent labium. 
. . . . If the one I tigun'd is normal (and the complete fringe of marginal 
hairs certainly givi's no indication of injury), then I should think then' has 
been .some mixing of sjiecies under the name (Hlnliilus.” 
IiiasmiK'h as tho ovidoiioo from both imao;os ami oxuviao sot 
forth in this pa])or is in asivc'nu'nt and tho lattor oonfirm tho 
ooiiolnsion drawn abovt', thoi'o sooms to bo no roason for doubt ing 
that tlu' Indiana oxnvia is normal. Tho tostimony of addit ional 
la 1' vat' would, lu'vortholoss, 1)0 vory tvoloomo. 
I’o.sTscKii'T. — Afti'r this papi'r had been jxit. into type, Mr. Williamson 
'cnt me a mah' and a female (loniphii.s labeled, “Amite Itivi'r, Lloiiisianla. 
.u.2.S.()'.) ]'ll. Poster. I'ragments received in bottle years ago.” Of the male 
thi'i'i' an' tiu' head, thorax, alxlomiiial .segments one to three, six to ten, the 
superior (but not the inferior) alxlomiiial aiipendages, one front wing and 
both hind wings, 'the female is complete I'xcejit for ahdoniinal segments 
four and five and the vulvar lamina. In the thoracic characters (nos. .5-9) 
of both si'xes, in tlu' male fi'atiires (lo-l?) and in the sliajic of the occiput 
(1 and 2t)) these two specimens are di.latatus. The face, on the other hand, 
(nos. 2 and 4j is as in luirdiij'roiis^ while the rhinarium (no. 3) is intermediate 
in that it is aiijiarent ly entirely brown, but there is no brown or black on 
1 he cnclosmg sidi's of t ho nasus. The hind wing of the mah' measiiri's 33, of 
t h(' lemale, 3(i mm. .Xnti'nodals, front wing, yi l, 9 13 and 12. .\ntenodals, 
hind wing, cf 9 , h. 
I'hiiiAT.v. — Two corrections to jiapers on Odonata in earl ii'r •volumes of these 
'l'r;uisacl ions may be noted lu'i'i'; \'ol. X 1 A , page 37S, lift h line from bottom 
loi’ 1 y, I 9” r('ad “2cf’, I 9 ”. ^ ol. XLN'l, jiagi' 32(1, line lifli'i'ii, insert “l 
after “August I , I POP”. 
' 'The exact d;i(a for the three ( Seorgia exuviae of (///u/u/a.x ari': mid-dorsal 
Iciigl h ol ( cii, .S.9, .71, .Ptl; l.-dcral niarginoften, 1.11, 1,11, 1.33; lateral spines 
III nine extend beyond lateral margin of ten by .13, . 13, .07 ; mid-vi'iit ral leiigt h 
ol ten, 1.2(1, 1.33, I .'IS, respi'ct ix'cly. All measurenu'uts in millimeters. 
