EULASIOCOLPUS.—LASLOCOLPOIDES. 313 
EULASIOCOLPUS, n. gen. 
Head (with the eyes) wider than the apex of the pronotum, broadly produced in front; eyes very large, oval, 
. reaching to near the anterior margin of the pronotum, and separated by a space of the width of one of 
them ; rostrum reaching the intermediate coxe ; antenne rather slender, joints 3 and 4 very slender, 2-4 
with long projecting hairs. Pronotum transverse, strongly sinuate at the sides, broadly and shallowly 
arcuate-emarginate at the base, with a distinct collar in front, the sides very narrowly and obsoletely 
margined, the anterior lobe smooth and convex, and separated from the short posterior lobe by a deep 
transverse groove. Scutellum deeply transversely sulcate beyond the middle, the apical portion flattened. 
Elytra almost smooth, with moderately wide embolium, the membrane with a single (outer) nervure 
distinct. Wings with the hamus issuing beyond the decurrent nervure. Anterior and posterior cox» 
almost contiguous. Metasternum carinate down the middle. Orifice of the metastethium transverse, 
curving a little forwards externally. Terminal genital (ventral) segment of the male asymmetrically 
formed, with a deep sulcus or opening on the right side only. Legs elongate; anterior femora strongly, 
the posterior pair moderately, incrassate; the tibie setose. Body narrow, oblong-obovate, shining, almost 
smooth, clothed with scattered pubescence and a few long erect hairs, some of which project beyond the 
apex of the abdomen. 
This well-marked genus belongs to Reuter’s section Lyctocoraria, and it seems to 
be nearest allied to Asthenidea. The very large oval eyes, smooth, shining body, dull 
elytra &c., render it easy of recognition. The sides of the pronotum are very deeply 
sinuate, as in Lasiocolpus. 
1. Eulasiocolpus megalops, n. sp. (Tab. XIX. figg. 6, 64,3; 7, 2.) 
Black, the antenna, rostrum, cox, and legs testaceous or flavo-testaceous, the posterior femora sometimes 
infuscate at the apex; the elytra with a subtriangular patch at the base exterior to the clavus, the inner 
margin of the corium beyond the clavus, and a spot at the inner apical angle of the embolium, ochreous, 
the membrane with a transverse flavo-hyaline patch adjoining the apex of the cuneus; above and beneath 
smooth and shining, the posterior lobe of the pronotum and the flattened apieal portion of the scutellum 
transversely rugulose; the elytra opaque, with the cuneus and membrane shining; clothed with long, 
erect, scattered hairs and also very sparsely pilose, the elytra with deeumbent golden hairs, Head with 
the eyes about as long as broad; antenne moderately long, joint 1 reaching the apex of the anterior 
portion of the head, 2 rather more than three times the length of 1, 3 amd £ subequal in length, each 
shorter than 2, Elytra with a single impressed row of punctures near the inner edge of the embolium, 
Length 3-33 millim. (d 9.) 
Hab. Guatemaua, El Tumbador, Las Mercedes, Cerro Zunil (Champion); Panama, 
Bugaba, Volcan de Chiriqui (Champion). 
Found in plenty in Chiriqui, more sparingly in Guatemala, on the Pacific slope. 
The specimens were obtained by beating the branches of fallen trees in forest-clearings. 
The transverse flavo-hyaline space on the membrane is not always visible unless the 
elytra are opened. 
LASIOCOLPOIDES, n. gen. 
Head longer than broad, the produced anterior portion stout and about as Iong as the eyes;. eyes (2) large, 
oval; rostrum extending to a little beyond the anterior coxe; antenne with joints 3 and 4 very slender, 
1 and 2 considerably stouter, 2-4 sparsely pilose, with very long projecting hairs intermixed. Pronotum 
trapezoidal, rapidly narrowing from the base forwards, margined and feebly sinuate at the sides, with a 
short well-defined collar placed before the declivous anterior angles, the base shallowly arcuate-emarginate. 
Scutellum transversely sulcate beyond the middle, with the apical portion flattened. Elytra very distinctly 
and subseriately punctured, pilose, the embolium ciliate externally, the latter rather narrow and at the apex 
BIOL. CENTR.-AMER., Rhynch., Vol. Il., Aprid 1900. 40 
