396 E. BERGROTH 
oculos macula basali flavida notato, bucculis albidis, fere percurrentibus, sed 
retrorsum sensim humilioribus; antennae dimidio corpori (incl. elytris) subaeque 
longae, subglabrae, obscure testaceae, articulo primo plus minusve fusco-notato, 
apice secundi et tertii plerumque fusco, quarto toto fusco-nigro, secundo tertio 
tertia parte vel interdum fere dimidio longiore, quarto secundo paullo breviore 
vel subaequilongo et quam tertio semper longiore; rostrum fuscum, articulo 
primo bucculis subaeque longo. Pronotum longitudine sua minus quam duplo 
latius, testaceum, sat fortiter modice dense fusco-punctatum, fascia subapicali 
et maculis quattuor transversis basalibus (interdum subconfluentibus) nigris, 
marginibus lateralibus subrectis, raro post medium paullo sinuatis. Scutellum 
testaceum, fusco-punctatum, carina media longitudinali nigra, apice pallida. 
Pectus fuscum vel nigricans, fascia apicali utrinque abbreviata prosterni, mar- 
gine postico pleurarum, acetabulis orificiisque albidis vel testaceis. Elytra 
apicem abdominis aliquantum superantia, albida, pellucida, dense fusco-irrorata, 
sed limbo costali retrorsum dilatato corii et limbo exteriore membranae imma- 
culatis, margine apicali corii piceo-nigro, plerumque bis pallido-interrupto, mar- 
gine costali ad basin per spatium breve recto et albo-ciliato, deinde leviter 
rotundato-ampliato. Abdomen subtus in mare nigrum, macula transversa api- 
cali segmenti sexti et interdum etiam margine apicali medio segmentorum 
duorum praecedentium margineque laterali ventris flavidis, segmento genitali 
toto nigro, medio impresso; ventre feminae flavotestaceo, basi et vitta lata 
sublaterali nigris. Pedes testacei, femoribus seriatim nigro-maculatis aut ple- 
rumque, apice flavido excepto, omnino piceo-nigris, tibiis apice (posticis etiam 
basi), apice articuli tarsorum primi ac tertio, basi exepta, fuscis. Long. (incl. 
tegm.) 3—4 mm. 
Belongs to STAL’s group 44 and HORVATH’s group 10 (13). 
Masatierra and Masafuera. Numerous specimens from both islands. 
2. Gen. et sp.? 
Masatierra. 
A single larva belonging to STAL’s group Rhyparochromaria. It is pale 
testaceous suffused with brownish in many places, abdominal tergum with three 
transverse black spots enclosing the secretory openings, pleurae dark brown, 
a spot at basal angles of propleurae and a percurrent vitta near lateral margins 
of metapleurae whitish, antennae, rostrum, and legs pale testaceous, apical 
half of third and the whole fourth antennal joint, a broad basal and narrow 
subapical ring to femora, and a broad tibial ring (nearer to apex than tho base) 
fuscous. Head a little broader than long, antennae longer than half the body, 
pilose (especially the 2d joint), first joint passing apex of head by about half 
its length, second more than half as long again as second, third as long as 
first, fourth almost as long as second, rostrum extended to base of venter, 
first joint reaching base of head, longer than first antennal joint. Pronotum 
twice as broad as long, a little narrower at apex than at base, lateral margins 
straight, shortly rounded at apex, basal margin straight in front of the scutel- 
lum, which is about half the length of the elytral pads and separated from 
them by a fine suture. Front femora moderately incrassated with a spine 
beneath near the apex. Length 4 mm. 
