MORGAX HEBARD 
123 
a heavy base to an elongate jjroeess, ta])ering evenly to its aeienlate ajiex, 
weakly curving and directed ineso-dorsad. Titillator with distal portion 
very slender and dorsal armament weak.-- Subgenital plate convex excei)t 
meso-distad where it is weakly concave and weakly triangularly producefl. 
At the apex of this production is situated a cylindrical style, over three times 
as long as its median width, directed dorso-sini.strad, its ba.se stout, its shaft 
cylindrical, with blunt apex covered with minute, short, stout spines. Sinis- 
trad of this style is situated a small cylindrical style with unarmed apex 
rounded, slightly over half as long and distant from the larger stvle slightly 
over its own length. Subgenital plate with free margin dextrad decidedly 
convex to base of mesal production, where, with the almost straight, oblique 
de.xtral margin of this i)roduction, a distinct and broadly rounded concavity 
is formed; from the apex of the mesal i)roduction the sinistral portion of the 
free margin is nearly straight and oblique to the base of the plate. 
Limbs as characteristic of genus. 
Allotype . — 9 : same data as type. [Hebard C'ollection.] 
Agrees with male exce})! in the following respects. Size larger, form slightly 
more robust, much as in males of vulpitta. Interocular space as broad as 
interocellar space. Tegmina and wings proportionately scarcely shorter 
than in male, extending beyond the cereal apices over twice the cereal length. 
Dorsal surface of abdomen unspecialized. Suiira-anal i)late strongly i)ro- 
duced mesad, half as long as ])roximal width, the lateral margins concave, 
particularly proximad, the ai)ex broadly roimded, ])rojecting well bevond the 
caudal margin of the subgenital plate. Subgenital plate decidedly tran.*:- 
verse, convex, with free margin evenly and broadly convex. 
Head to ventral margins of ocelli shining blackish brown, there shading to 
cinnamon rufous with last two joints of maxillary j)al{)i suffused with black- 
ish brown, ocelli buffy. Pronotum tawny, very faintly p^aler laterad and 
cephalad. Tegmina translucent tawny, a shade darker than in angustifroyis, 
the marginal field ochraceous-buff. Limbs and underparts ochraceous-buff, 
weakly tinged distad with cinnamon brown, the spines russet.-^ Dorsal sur- 
face of abtlomen cinnamon brown, the subchitinous section of the male supra- 
anal plate paler. 
In three females the latero-caudal sulci of the pronotal disk are suffusetl 
with slightly darker brown. All have the subgenital plate showing, to 
different degrees, a suffusion of blackish brown mesad along the caudal mar- 
gin. 
-- In aiigustifrons the distal portion of the titillator is much broader and more 
heavily armed, much as shown in Mem. Am. Ent. Soc., no. 4, pi. iv, fig. S, 
(1920). 
-3 In angustifrons the limbs are ochraceous-buff weakly tinged with tawny 
distad, the spines tawny. 
TRANS. AM. ENT. SOC., XLVII. 
