CALVERT: MACROTHEMIS AND ITS ALLIES. 
331 
Total length 33, abdomen 23-24, h. w. 27-29, its greatest width 
8.5-9.5, pter. 2, apps. .6, hind tibia 4. 
In the above description of the two types, where a difference 
exists between them as indicated by uSe of the word “or,” the 
expression before the “or” refers to the type labeled “hemichlora 
Burm. Bahia” in what is believed to be Burmeister’s handwriting, 
the words after the “ or ” to a female, also from Winthem’s collec¬ 
tion, labeled merely “ Bahia,” but possibly also seen by Burmeister. 
The head which this latter now possesses is probably of another 
species as no other female of hemichlora known to me has a head of 
the colors above indicated. The two types in M. C. Z. 
Ten other females in the Mus. Comp. Zool., and one in my own 
collection, seem also to be of this species, taking the pattern of the 
thoracic markings as the chief criterion. They show considerable 
variations from the above described type. 
These variations are face more or less luteous, labrum with a 
black band half as wide as the labrum itself along the greater part 
of its free margin; reduction of stripes on abdominal segments to 
as much as one fourth the length of the segment and lying upon its 
middle, and their entire absence on 8-10; the occurrence of clear 
areas on wings which are for the most part yellowish, such clear 
areas are between the median vein and principal sector (with upper 
sector of arculus) from the base to beyond the nodus and large 
part of the base of the hind wings near the anal angle; the absence 
of the deeper yellow at the apex of the front wings; the presence of 
yellow at base of all the wings out to just beyond the triangle but 
not reaching the hind margin on hind wings — on wings which are 
clear except for smoky yellow on f. w. from nodus to tip. 
Front wings: antenodals 12-14, postnodals 7-9, internal triangle 
of 1-3 cells. All ten have the two posttriangular rows out to the 
level of the nodus, the marginal cells vary from 4-6. 
g . The Mus.'Comp. Zool. contains two males which from their 
thoracic color pattern seem to belong to this species. They differ 
from the females as follows: Face and lips luteous (a spot on the 
nasus, labrum except at base, median labial lobe, bases and inner 
margins of lateral labial lobes dark brown in one of these two males, 
thus recalling the var ? typographci of inequiunguis ), greater part 
of the frons and vertex dark metallic blue, the wedge-shaped ante- 
lmmeral stripes are somewhat shorter and reach but little more than 
half way down from the antealar sinus to the anterior mesothoracic 
