78 
CATALOGUE OF 
the first; fourth shorter than the second, a little longer than the third. 
Pruthorax thickly punctured, with a slight smooth transverse ridge and 
with a callus on each side near the hind border; hind angles rounded, not 
prominent. Four anterior legs tawny. Four anterior femora with three 
very minute spines in a line beneath. Hind femora iucrassated, as long as 
the abdomen, with a long stout curved spine in the middle beneath, dentate 
from thence to the tips. Hind tibiae rather shorter than the hind femora, 
very slightly dilated towards the base, dentate beneath. Hind tarsi tawny 
towards the base beneath. Fore wings with a blackish membrane. 
Length of the body 7 lines. 
a. From Mr. Vigors’ collection. 
14. Nematopus decoratus. 
Mas. Rufus; caput fiavescente unistrigatum ; prothorax piceus, luteo 
late fascialus, angulis posticis acutis non prominulis ; abdomen Jlavo 
bivittatum, apice viridi nigrum ; femora postica subtuberculata, 
abdomine breviora, subius unispinosa ; al(C anticee picece, Jlavo 
venosce. 
Male. Red. Head with a short pale yellowish streak between the ocelli. 
Rostrum extending nearly to the middle coxae. Antennae slender, a little 
shorter than the body ; first, second and third joints nearly equal in length; 
fourth nearly twice the length of the third. Prothorax scabrous, piceous, 
with a callus on each side in front and with a broad luleous band across 
the middle; hind angles acute, not prominent. Abdomen with a slender 
pale yellow stripe along each side; tip greenish black. Hind femora 
iucrassated, shorter than the abdomen, with a few tubercles and with a 
long curved spine in the middle beneath. Hind tibiae as long as the hind 
femora, with a few very minute spines beneath and with a stout spine 
beneath at one-third of the length. Fore wings piceous; veins pale 
yellow ; membrane cinereous. Length of the body 8 lines. 
a. Tapayos. From Mr. Bates’ collection. 
15. Nematopus varius. 
Mas. Luteus, subtus ferrugineus ; antennce corpore breviores, articulo lo 
apice nigro, 2o 3oque nigris basi albis ; prothorax piceo punctalus, 
angulis posticis acutis non prominulis ; abdomen piceo bifasciatum, 
subtus luteo univittatum ; coxa et trochanteres nigra ; femora postica 
abdomine multo breviora, dimidio apicali nigro, subtus unispinosa et 
apices versus denticufata ; tibia postica basi nigra et subarcuata ; 
ala antica picea, luteo venosa. 
Male. Luteons, ferruginous beneath. Rostrum extending nearly to 
the middle coxae. Antennae shorter than the body; first joint black at the 
tip; second and third black, shorter than the first, white at the base. 
Prolhorax scabrous, with three calli in front; punctures piceous; hind 
angles acute, not prominent. Abdomen with two piceous bands near the 
tip ; under side with an abbreviated luteous stripe. Coxae and trochanters 
black. Hind femora inciassated, much shorter than the abdomen, black 
