378 SUPPLEMENT. 
To the material cited add:—Mexico, San Luis Potosi (Hoag, coll. P. P.C.: 46, 
3 9458 pairs), Uruapan [3 g, 4 9 + 1 pair], Oaxaca [1 ¢ | (coll. Deam). 
The material previously enumerated for this species, anted, page 104, included only 
one pair (34, oh Cuernavaca, October). 
ANISAGRION (p. 104). 
The examination of perfect individuals of both sexes of A. truncatipenne furnishes 
the following additions to the Synopsis of Species, anted, p. 105 :— 
In rubric BB, substitute “Tenth abdominal segment and inferior appendages as 
above for allopterum,” for ‘“* (Apex of abdomen lost.).” 
The characters assigned to females of allopterum will also apply to that sex of 
truncatipenne ; the differences between these females are very slight :— 
Size larger (abdomen 24-29, hind wing 17:5-20, costal edge of stigma of hind 
wing *49-"64 mm.), 5 or more cells between stigma and wing-tip, costa and 
median vein . 2. 6. ew ew ee ee ee ee ee ew ew.) albopterum. 
Size smaller (abdomen 23-25°'5, hind wing 15°5-17°5, costal edge of stigma of 
hind wing *45—49 mm.), 3 or 4 cells between stigma and wing-tip, costa and 
median veln . . / 1 ee we ee ee ee ee ee ew ee Eruncatipenne. 
Anisagrion allopterum (p. 105). 
To the localities given, add :—Costa Rica, Camino de La Palma between Guadalupe 
and El Alto (Biolley, coll. Kahl: 2 3), San José (Biolley, Tristan: 8 3, 10 2), 
Juan Vitias (Bruner, U. S. N. M.: 1 3). | 
Var. ? rubscundum (p. 105). 
To the localities given, add :—Costa Rica, San José (Biolley: 2 3,3 2). 
Although I have not yet seen a series of specimens displaying a gradual change in 
colours from rubicundum to allopterum, all specimens of the former are evidently 
young, of the latter old; the differences represented by these two names are, in all 
probability, merely due to age, especially as a similar series of changes occurs in the 
following species. 
Anisagrion truncatipenne (p. 106). (Tab. X. fig. 46.) 
3 (previous description incomplete). In the youngest examples at hand (a), dorsum of abdominal segments 
7-10 dark brown, remainder of body mostly pale brown or reddish. Later (4), 4-10 are dark brown, 
with a narrow, transverse, mid-dorsally-interrupted, basal yellow ring on 4—7, pale brown being still the 
prevailing colour on the remainder of the body. (c) A deeper brown next develops on the upper surface 
of. the head, mid-dorsal thoracic region, and on abdominal segments 1-3. In a still later stage (d), the 
head is blackish superiorly, labrum and postocular spots pale blue, the latter bounded posteriorly by 
black; under surface of head, thorax, and abdomen pale yellow; a black mid-dorsal thoracic stripe, 
each half of which is slightly more than half as wide as the mesepisternum on which it lies, a pale blue 
antehumeral stripe occupying the remainder of each mesepisternum ; mesepimera and metepisterna pale 
brown, a small black spot lying on the lower end of the mesepimeron and adjacent portion of mesinfra- 
