276 NEUROPTERA. 
distally, except the last, which is shorter than its predecessor.” Vulvar lamina hardly reaching beyond the 
apex of segment 8, with a wide but shallow apical emargination. 
¢ 9. All wings with two rows of cells in the middle of the area between the subnodal sector and the 
supplementary sector next below, one row between the short sector and the supplementary sector next 
below, one submedian cross-vein. Front wings with 16-19 (d), 16(Q) ante-, 10-12 (¢), 9-10(2) 
postcubitals, three post-triangular rows to the level of the nodus, subsequently increasing to 4-9 (3), 
5-6 (Q) marginal cells, internal triangle 3- (1S. Ger. d, 2) or 4- (2d) celled. Hind wings with 
11-12(¢), 10-11(¢) ante-, 11-13 (3), 10( 2) postcubitals, two post-triangular rows, increasing 
proximal to the level of separation of median and subnodal sectors. 
Hab. Mexico, Guadalajara (McClendon *, coll. P. P. C.: 1 9); Guatemaza (coll. 
McLachlan: 1 3), San Gerénimo, Vera Paz (Champion: 2 ¢ ). 
The Guadalajara female was taken August 23, 1903; its pterostigma is longer than 
that of the males (see page 272), but almost as much difference is shown by our 
measurements (on the same page) from the two sexes of fugaz. 
The males bear some resemblance to those of Rhodopygia cardinalis, but, in addition 
to the generic differences (pages 200, 203), have the wings darker brown at base. 
The specific name proposed alludes to the human tribe whose area of distribution 
partly coincided with that of this species. 
3. Dythemis cannacrioides, sp. n. (Tab. VIII. figg. 43, 44.) 
In addition to the details given on page 272 :-— 
3. 
The 
g. 
Vertex, frons, clypeus, and occiput brown, or clypeus and the lower part of frons olive, lips brownish- 
yellow to orange. Tip of vertex slightly concave, frons superiorly with a deep median longitudinal 
groove. Thorax dark reddish- or greenish-brown, with a slight metallic-blue reflection on the sides, in 
some also on the dorsum; a pale yellow sinuous stripe at the obsolete first lateral suture in younger 
individuals, represented at later age by a minute trace (1 mm. or less) of pale yellow in front of the 
metastigma ; traces of yellow at the lower ends of mes- and met-epimera, and at the extreme hind end 
of the metepimeron. Mesepisterna clothed dorsally with pale hairs, which are longest anteriorly. 
Abdomen above dark reddish, the bases of the segments paler, below ochreous, the longitudinal carine 
and the intersegmental articulations black; segment 2 2°5-3:5 mm. wide, 4—9 narrower, subequal in 
width to each other (2-2-2 mm.) or with a slight increase in width from 4(2°8 mm.) to apex of 7 (3 mm.), 
thence a decrease to 10 (2 mm.), or even tapering slightly from 2 to 10. Genitalia of segment 2 shown 
in Tab. VIII. fig. 44. Superior appendages 2 mm. long, subequal to segment 9, black, almost straight, 
thicker in their third fourth, extreme apex directed upward, acute; in profile view, an inferior row of 
10-11 denticles is visible, beginning at about one-fourth the appendage-length and ending at not quite three- 
fourths thereof on the thickest part of the appendage. Inferior appendage three-fourths to four-fifths as 
long as the superiors, reaching more or less beyond the last inferior denticle thereof; viewed from below, 
its apex is emarginated (not shown in Tab. VIII. fig. 43), and is one-fourth to one-fifth as wide as the 
greatest width just posterior to the base. Femora dark reddish-brown, tibie and tarsi blackish ; antero- 
inferior row of spines on the second femora consisting of 10-16 spines, which increase in length distally, 
followed by a spine usually considerably longer than its predecessor; on the third femora of 21-82 short 
spines which increase in length distally (but very gradually and do not become as long as those on the 
second femora), followed by a notably longer spine. 
Gualan males show a little pruinosity around the bases of the legs, on the sterna of the thorax and first 
abdominal segment, but not elsewhere. 
The single female differs from the above description of the males in being pale brown instead of reddish 
* Mr. McClendon has given a brief sketch of his itinerary in Ent. News, xvii. pp. 26-27 (1906). 
