132 
COLOMBIAN' DERMAPTEIU AN'D ORTHOFTEILA. 
'riio syiuinctrical tarsal claM's are found elsewhere only in Megalo- 
hhitia in the reeofiiiized jienera of the Nycti])orinae. So distinct- 
ive is the present Kt'nus, that its proper position is a prolrlein. 
After considering the evidence, we feel it best to ])lace Muzoa 
iinniediately after Xyctibora. The Xyctiborinae, unlike the 
Pseudoinopinae, is a small su])family including comparatively few 
genera, thes(' repi-esenting a number of very distinct units, of one 
of which Muzoa is the single known member. 
(Jenus monotypic. (lenotype. — Muzoa simplex iiev' siiecies. 
Known in the adult condition only from the male sex. Head, 
pronotum, tegmina and wings of similar structure to Xyctibora. 
Interoculai- space wide, wider than in any known species of that 
genus. Ocellar spots small but distinct. Supra-anal plate sym- 
meti'ical, briefly emarginate mesad. C'erci broad ami heavy, 
subsj)atulate, l)ut with apices rather sharp. Subgenital plate 
symmeti'ical, the styles of e(iual length, (’ephalic femora with 
ventro-cephalic margins armed with minute and well spaced 
spiniform hairs (no heavier than the s]iiniform hairs on the ad- 
jacent surfaces), which change to minute spines distad, terminat- 
ing in three heavy spines which increase greatly in length distad. 
the distal Ixcing very elongate. Other ventral femoral margiirs 
sup])lied with heavy s])ines, of which those on the caudal margins 
of the median and caudal liml)s are very elongate. Four proxi- 
mal tarsal joints each furnished with a i)ulvillus. Small arolia 
present betw(>en the bases of the elongate, symmetrical tarsal 
claws. 
Muzoa simplex now specie.s ( Plate IX, figure.s 20 aixl 21.) 
The [)i-(‘sent insect looks much like a depauperate specimen of 
A yctibora ob.Hcura Saussure, having more decidedly reduced 
pi’gans of flight, (’loser examination shows it to differ not only 
in specific featui’es, but also in characters which oblige its assign- 
iiK'nt to a distinct genus. 
'! ype. — cf' , Muzo, Boyaca, (’olombia. Flevation, 2700 feet. 
SeptemlxM', 1010. ( Fi-om A. Maria.) [Hebard (’olhadion, Type 
no. ()()8.1 
111 addition to tlie cdiaracders fj;iveii in the geiu'rie description, we consider 
the followinfi; sjiccifically diagnostic. Size luair that of the coinparativt'h' 
small S ijcttl)()rn azleai Saussure and Zehntner,'''^ form aj)])reciahly broader, 
“ flompared with a Mexican female in the llehard (’ollect ion. 
