192 NEUROPTERA. 
on the right side only. These differences are not associated with differences in size, other structures, 
or distribution, so far as I can discover. 
Q. The female from Teapa is interesting in possessing four spines on the ventral process of the tenth 
abdominal segment, the fourth being asymmetrically placed on the left side. 
Hab. Mexico [2 3*, 3 34, 10 2], Vera Cruz [1 ¢*, 1 sf, 2 @ | (coll. Adams), 
Teapa (H. H. Smith: 1 ¢ 4, 12); Guarmmata (Van Patten, M. C. Z.: 1 2), San 
Gerénimo, 3000 feet [1 ¢*], San Isidro, 1600 feet [1 2] (Champion), San Felipe 
(Hay & Maxon, U.S. N. M.: 1 3, 2 2).—ConomsBra, Bonda in Dept. Magdalena 
(H. H. Smith, Carn. Mus. Pittsb.: 2 3*,1 2); Vunuzveta [Appun: 1 3 *], Puerto 
Cabello [1 9] (MC. Z.); Gutana, Surinam (1S. NM: lst; MO: 128; 
coll. P. P. ©. ex coll. R. Martin: 1 2); Braziu!?; West Inpres, Cuba? (Poey, 
M,C. Z.: 13%, 1 2), Jamaica}. 
Taken in February (San Felipe) and March (Teapa). 
8. Gynacantha mexicana. (Tab. VIII. figg. 22, 23.) 
Gynacunthe mexicana, Selys, Compt. Rend. Soc. Ent. Belg. xi. p. lxix (1868) °. 
g (hitherto unknown). Face pale green (?) in life, labrum yellow, black T-spot on upper surface of frons 
well marked, its stem of subuniform width, occiput pale yellow above. 
Thoracic dorsum apparently green in life, unspotted; sides of the thorax paler, rather yellowish in the better- 
preserved ¢, with the follewing blackish-brown markings: a spot surrounding the metastigma, a small 
round spot a very short distance above it, a small streak on the upper parts of the humeral and second 
lateral sutures, and a shining stripe, 1 mm. wide, on the hind part of the metepimeron, which passes on 
to the metasternum and terminates behind the 3rd coxa without quite meeting its fellow of the opposite 
side. Basal sclerites of the wings and interalar dorsum with green and blue spots. 
Abdomen strongly constricted at segment 3 (4:5 mm. wide at hind margin of 1, 1 mm. wide at narrowest 
part of 3, 2°3 mm. wide at base of 4). Most of segments 1 and 2 luteous in the dried specimens, but a 
transverse anteapical band on 2 and a pair of basal spots on 3 still distinctly blue, a blackish dot on the 
side of 1; remainder of the abdomen dark brown, 3-8 with the usual pair of pale triangular spots just 
behind the transverse submedian suture and a pair of pale anteapical spots, 3~7 with two blackish spots 
above each lateral carina, one at the transverse submedian suture and one before the apex. 
Auricles well developed, margined with blackish, with 4-5 teeth. For the appendages, see the figures. 
Legs pale luteous, first femora blackish superiorly. 
3 &. Wings with the subcostal space from base to nodus and the first postcubital (costal from nodus to 
pterostigma) space smoky brown, distinctly darker than the rest of the wing except along the apical 
margin. Front wings with 25-26 antecubitals, 20-22 postcubitals; hind wings with 17-21 ante- 
cubitals, 21-25 posteubitals. Discoidal triangles 6-8-celled with at least. two cells on the proximal side, 
internal triangles 2-celled. Pterostigma ochre-brown (), pale luteous ( 2 ), membranule grey. 
@. Generally similar to the male, abdomen less constricted (4 mm. wide at hind margin of seg. 1, 1-5 mm. 
wide at, narrowest part of 3, 2 mm. wide at base of 4), segments 1 and 2 pale brown. Appendages 
brown, acute; apical half or more of the genital valves and their “ palps ” (styli) pale luteous; ovipositor 
proper dark brown, the two prongs on the ventral process of segment 10 curved anteriorly in their 
apical halves. Black stripe on metepimeron not so well marked as in the ¢; black spots on sides of 
abdominal segments 1-7 as in the male, except that there are two spots on 2 on the site of the auricles 
-here absent. 
Hab. Mexico (Bonvouloir!), Vera Cruz (colls. Adams, P. P. C.: 1 3,2 9, the ¢ in 
very bad condition) ; Honpuras, San Pedro Sula (oor McLachlan: 1 3). | 
* Anal triangle 2-celled, + Anal triangle 3-celled. 
