288 NEUROPTERA. 
MACROTHEMIS. 
Macrothemis, Hagen, Stett. ent. Zeit. xxix. p. 281 (1868)1; Brauer, Verh. zool.-bot. Ges. Wien, 
Xvill. p. 734 (1868) *; Kirby, Trans. Zool. Soc. Lond. xii. pp. 262, 297 (1889) *; Cat. Odon. 
pp. 83, 181 (1890) *; Calvert, Proc. Calif. Acad. Sci. (2) iv. p. 472 (1895) °; Proc. Bost. Soc. 
Nat. Hist. xxviii. pp. 301, 303, 306, 317 (1898) °. 
Under Brechmorhoga, page 277, are given some remarks on this American genus. 
Synopsis of the Mexican and Central-American Species. 
A. Abdomen blackish-brown with green or yellow stripes and spots on segments 
1-7, pruinose in old males ; hind wings with 1 (¢:) or 2 (?) post-triangular 
rows, 1( 3) or 2 ( 2) cells between the posterior angle of the triangle and A, 
immediately opposite; apices of the superior appendages of the males acute. 
B. Pale green antehumeral stripe T-shaped, or more frequently the T broken 
into a longitudinal (=stem of the T) and a superior transverse (=cross- 
piece of the T) stripe which are not confluent; hind wing with 2 (¢) 
or 3 (2) rows of cells between and parallel to A; and the anal “ angle,’ 
1 (g) or 2 (2) postcostal cells between the proximal angle of the 
triangle and the point of origin of the distal subbasal sector (A, of 
Comstock and Needham); abdomen not widened on segments 7 and 8. 
Abdomen, ¢ 27-28, 9? 26-27'5; hind wing, ¢ 22-23, 9 25-27 mm. . 1. musiva. 
BB. Pale green antehumeral stripe wedge-shaped ; hind wing with 3 rows of 
cells between and parallel to A; and the anal angle, at least 2 (¢ ?) 
postcostal cells between the proximal angle of the triangle and the point 
of origin of A, ; abdomen of the male much wider on segments 7 and 8, 
the superior appendages with an inferior row of denticles on the second 
fourth, but no tooth. 
C. Sides of thorax predominantly dark brown with four pale spots: one 
on the lower part of the mesepimeron *, one on the upper part of the 
metepisternum, two on the metepimeron placed obliquely one above 
the other; males with the antehumeral stripe reaching forward almost 
to the anterior mesothoracic border, apex of the inferior appendage 
one-third to one-fourth as wide as at base and only slightly notched. 
Abdomen, 3g 27-29, 2 265-285; hind wing, ¢ 29-32, 2 80- 
825mm. 2 1 we ee ee ee ee ee ew we. 2. pseudimitans. 
CC. Sides of thorax predominantly pale green or yellow with brown stripes 
on the first and second lateral thoracic sutures, the latter sending a 
branch downward on to the metasternum; males with the ante- 
humeral stripe reaching forward only half-way to the anterior 
mesothoracic border, apex of inferior appendage three-fifths to almost 
as wide as at base and bifid one-fifth-way to base. Abdomen, $ 23-26, 
2 23-27; hind wing, ¢ 25-28, 2 27-830 mm. . . .. .. +. . 8. hemichlora. 
* In 1898 I incorrectly spoke® of two spots on the mesepimeron, instead of the expression adopted above 
(cf. 1. c. t. 2. figg. 35, 36). 
