HEMIPTERA HETEROPTERA. 549 
each basal angle. Abdomen above and beneath with a concise marginal 
stripe, which is dentate beneath. Legs black; femora with red tips; tibiz 
red at the base. Membrane dark brown. Length of the body 5 lines. 
a. Amazon Region. Presented by W. W. Saunders, Esq. 
Genus UDANA. 
Corpus dense et subtiliter punctatum, transverse subrugulosum. 
Caput thorace sat brevius, antice obtusum et utrinque incisum ; lobi equi- 
longi. Rostrum coxas posticas attingens. Antenne gracillime; articulus 
lus caput non superans. Thorax lateribus rectis, angulis posticis productis 
glabris rotundatis subascendentibus. Scutellum sat longum, apice 
rotundatum. Venter non sulcatus. Pedes graciles; tibie sulcate ; tarsi 
tiiarticulati. Ale antice subdtilissime punctate, connexivum non 
obtegentes. 
Body nearly elliptical, thickly and minutely punctured. Head rather 
shorter than the thorax, obtuse in front; lobes of equal length; lateral lobes 
slightly angular near the eye, notched near the fore border. Eyes very 
prominent. Rostrum extending to the hind coxe. Antenne very slender; 
first joint nct extending beyond the fore border of the head. Thorax trans- 
versely and very minutely rugulose, nearly twice as broad as long; fore 
border slightly excavated; sides straight; hind angles forming two short 
rounded smooth slightly ascending horns. Scutellum much more than half 
the length of the abdomen, rather more rugulose than the thorax, rounded 
at the tip. Abdomen not furrowed beneath. Legs slender; tibie 
furrowed ; tarsi three-jointed. Fore wings extremely minutely punctured, 
not covering the sides of the abdomen; membrane extending to the tip of 
the abdomen, with six simple longitudinal veins, 
The antenne are mutilated in the specimens described. It may be 
distinguished from Ectenus by the shorter rostrum, by the shorter basal 
joint of the anlenne, and by the obtuse head with lobes of equal length. 
1. UpsNA SMARAGDINA. 
Smaragdina, subtus cervina smaragdino bivitlata; antenne nigre ; 
seutellum apice testaceum ; pedes fulvi; membrana cinerea. 
Bright emerald-green; under side fawn-colour, with two emerald-green 
marginal stripes. Eyes piceous. Rostrum fawn-colour, Antenne black. 
Horns of the thorax tinged with eneous. Scutellum testaceous at the tip. 
Legs tawny. Membrane cinereous. Length of the body 7 lines. 
Formosa. Jn the National Museum at Melbourne. 
Page 241. 
Loxa FLAVICOLLIS. 
Cimex sylvaticus, &c., Sloane, Jamaic. 203, pl. 237, f. 15, 16. 
The species described by Sloane is quite distinct from the following 
species, to which it has been referred with a query. 
Cimex arabs, Linn. Syst. Nat. ii. 716; Mus. Lud, Ulr, 168. Fabr, Ent. 
Syst. iv. 91—Tetyra arabs, Mabr. Syst. Rhyn. 144. 
