1913 ] 
Muttkowski, New Species of Dragonflies. 
165 
on the basal third; a fine line at the side apically. Segment 2 entirely 
blue, except for a lunulate spot on the apical third; this dark spot is 
narrow and shaped exactly like a French circonflex. Appical two 
thirds of 3, three fourths of 4, four fifths of 5, seven eighths of 6, and 
7 practically entirely, dark metallic bronzy green; the metallic green 
spot on each segment is tridentate, a median dorsal tooth and a 
lateral tooth tending toward the base of the segment; the median 
tooth iS| elongated on the median line on 6 and 7, interrupting the 
basal ring of pale blue, 8 and 9 entirely blue, 10 black dorsally. 
Appendages black laterally, half as long as 10, the superiors thrice 
the length of the inferiors. The superiors each with a large lobe, 
which bears an introduced tubercle; in dorsal view they appear as two 
superimposed tubercles. The inferiors are very short and board flat 
tubercles. The figures show the form of the appendages better than 
any description. 
9.— Unknown. 
Length: abdomen 22—23 mm.; hind wings 16 mm. 
Described from three males, collected at Manning, Iowa, 
June 21 and 22, 1908, respectively, and at Correctionville, Iowa, 
June 23, 1908, by Mr. Arthur D. Whedon, from whom the speci¬ 
mens were received and to whom I am indebted for this oppor¬ 
tunity to describe this inteersting species. Holotype & in the col¬ 
lection of the Milwaukee Public Museum, the two $ paratypes in 
Mr. Whedon’s collection. The three specimens have been pre¬ 
served in alcohol and their colors appear as fresh as when caught. 
This species in its entire habitus recalls the genus Coenagrion, 
especially the species C. resolutum, of which latter Mr. Whedon 
collected a fair number at the same localities and on the same 
dates. In the shades of blue and metallic green, and 'especially 
in the delicate transitions from pale blue to yellow this species is 
akin to its prototype C. resolutum. For this reason I have placed 
a query relative to the identity of the species as an Bnallagma. 
As Coenagrion the species would be distinct from all other 
American species of Coeenagrion in that it lacks the lateral lines 
of black on 2, which makes the spot U-shaped in the other species. 
There is also no sign of a tendency toward the formation of an 
antehumeral !-point; the antehumeral is perfectly normal in this 
respect. 
As Bnallagma the species falls naturally in a group with B. 
carunculatum, civile, and anna, i. e., with those species of Bnallag- 
