MORGAN HEBARD 
319 
third tarsal joints.-^ Female with dorsal abdominal segments 
neither produced or keeled laterad.^^ 
Measurements (in millimeters) 
Length 
Length 
Width 
Length 
Length 
cf 
of 
of 
of 
of 
of 
body 
pronotum 
pronotum 
tegmen 
forceps 
Porto Bello 
3.7 
.61 
.61 
1.02 
.8 
Paraiso 
9 
3.8 
.62 
.61 
1.16 
.77 
Porto Bello 
4.2 
.69 
.68 
1.29 
.88 
Paraiso 
4 
.65 
.64 
1.16 
.84 
Labia arcuata Scudder 
1876. Labia arcuata Scudder, Proc. Bust. Soc. Nat. Hist., xviii, p. 257. [\’as- 
souras, 100 miles north of Rio [de Janeiro], Brazil.] 
Tabernilla, Canal Zone, Panama, V, 1 to 14, 1907, (Biisck), 
1 d^, 2 9 . 
Paraiso, C. Z., Pan., I, 28 to II, 2, 1911, (Schwarz; Busck), 3 cf , 
2 jiiv. 
Old Panama, Pan., I, 31, 1911, (Busck), 2 cf, 1 9 . 
In general coloration this species ranges from a solid blackish 
type, to a brown and black condition, similar to the normal 
coloration of L. annulata. The type of this species, a male, now 
before us, represents the former condition. 
The following features of importance are noted in the series 
before us. Antennae with first segment equal to combined 
length of second and third; second quadrate; third elongate; 
fourth three-quarters as long as third; fifth nearly as long as third; 
succeeding joints elongate-ovate, the longest over four times as 
long as broad; proximal joints dark, one or two distal joints pale. 
Pronotum, tegmina and wings colored as in annulata, the metallic 
luster sometimes very weak. Limbs with annuli subobsolete. 
Measurements {in millimeters) 
cf 
Length of 
body 
Length of 
pronotum 
Width of 
pronotum 
Length of 
tegmen 
Length of 
forceps 
Tabernilla 
4.9 
.82 
.8 
1.7 
1.09 
Paraiso 
3.8 
.68 
.68 
1.45 
.95 
Paraiso 
3.9 
.69 
.72 
1.29 
.95 
Old Panama 
4.8 
.74 
.74 
1.63 
1.09 
Old Panama 
5 
.86 
.84 
1.9 
1.22 
Vassouras, Brazil, type 
6 
.88 
.84 
1.97 
1.43 
This is true of all of the species before us of the Curvicauda, Annulata 
and Dorsalis Groups. 
Likewise true of the three allied groups here considered. 
TR.\NS. AM. ENT. SOC., XLIII. 
