254 HEMIPTERA-HETEROPTERA. 
2. Zelus trimaculatus, n. sp. (Tab. XV. fig. 12, 2.) 
2. Elongate, comparatively broad, opaque above, clothed with very short pubescence and widely scattered 
fine hairs, the pubescence on the pronotum dark and erect, and forming sinuous lines on the anterior 
lobe; head ferruginous, with two black posteriorly coalescent vittee on the ante-ocular portion, the post- 
ocular portion black, with a reddish median line; pronctum sanguineous, with three large black, partly 
coalescent, patches on the posterior lobe—the median one extending from the base to the transverse 
groove and narrowing forwards, the others not reaching the base, but extending forwards to the transverse 
groove and downwards to the lower margin,—the anterior lobe reticulated with fuscous, the anterior 
angles black ; scutellum ochreous; elytra black, the corium with a broad, interiorly narrowing, transverse 
ochreous fascia a little before the apex, the membrane greenish-violaceous ; wings violaceous; beneath and 
the connexivum sanguineous, fading to ochreous, the abdomen black at the apex, the pleura with some 
black marks at the sides, the ventral segments with narrow black fascie ; antenne and legs black, the 
intermediate and hind femora each with a flavous median ring; rostrum black, with the first joint partly 
ferruginous. Head comparatively small and narrow, shorter than the pronotum; antenne very slender, 
joint 1 as long as the head and pronotum united; pronotum trapezoidal, rapidly narrowing from the | 
rounded hind angles; the anterior lobe very short, deeply sulcate down the middle; the anterior angles 
tuberculiform and not prominent; the posterior lobe flattened on the disc; the basal margin narrowly 
reflexed. Elytra extending to far beyond the abdomen. Legs sparsely pilose, very long and slender, all 
the femora thickened at the base, the anterior pair fully as long as the hind pair. 
Length 174, breadth 5 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
One example. This handsome species is allied to Z. copterus (Perty), Z. trimaculi- 
collis, Stal, and Z. means, Fabr., all of which inhabit tropical South America. 
3. Zelus inconstans, n. sp. (Tab. XV. fig. 13, 2.) 
Elongate, narrow, shining, sparsely pubescent ; very variable in colour—(1) black, with the ventral segments 
1—4 sanguineous, (2) black, with the posterior lobe of the pronotum and the scutellum ochreous, and the 
middle of the venter and the connexival margins flavous, (3) black, with the scutellum and a broad 
posteriorly widened vitta on the disc of the posterior lobe of the pronotum rufo-testaceous, and the middle 
of the venter and the connexival margins flavous, (4) rufo-testaceous, with the head black and the abdomen 
in great part sanguineous; the antenna, rostrum, and legs black, the anterior femora usually pale towards. 
the base or with a flavous median ring, the other femora with 1-8 flavous or reddish rings; the elytra 
nigro-fuscous or black, the membrane and wings smoky. Head nearly as long as the pronotum, narrowing 
posteriorly, the basal portion cylindrical; antenne very slender, longer than the body, the basal joint 
reaching to a little beyond the apex of the scutellum. Pronotum narrowing from the hind angles 
forwards, the latter rounded and tumid; the anterior lobe smooth and deeply sulcate down the middle, 
the posterior lobe rugulose and with two faint anteriorly converging caring on the disc in front; the 
anterior angles transversely tuberculiform (less prominent in the gd). Elytra extending to far beyond the 
abdomen. Legs very long and slender, sparsely pilose. 
¢. Third antennal joint thickened to beyond the middle and the terminal genital segment produced into a long 
lobiform process at the apex. 
©. Intermediate femora tumid for some distance along the middle beneath. 
Length 12, breadth 24-24 millim. (¢ 2.) 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
Four females and one male, all differently coloured. This species is allied to various 
S.-American forms, some of which appear to be undescribed, and seems to come near 
