116 



INSECTS OF SAMOA. 



rostrum which extends beyond the hind coxae, but all the Samoan specimens 

 agree in this character which, however, is not mentioned by Stal. The specimens 

 from Savaii and Tutuila have the clavus and corium partly infuscate, more or 

 less as in typical G. servus F., but the specimen from Upolu has both clavus 

 and corium free of infuscation. Stal states that sometimes in this variety the 

 posterior lobe of the pronotum and the hemielytra are free of black markings 

 and this is the form which occurs in the New Hebrides and New Caledonia. 

 Such specimens approach G. inornatus Dist. (Andai, Malay Arch.) in which, 

 however, the head is red with the tylus only black. The specimen from Savaii 

 has the head red more or less suffused with brown but differs from G. servus in 

 having the tylus red not black and in the long rostrum which extends well beyond 

 the hind coxae. G. nigriceps Stal. also differs from G. servus in the following 

 specific characters. — The two small black spots on pronotum fused with anterior 

 transverse black band. Posterior lobe of pronotum without a transverse brown 

 band. Basal angle of membrane, below apex of clavus, black not white. Red 

 lateral margin of venter equally wide throughout, not distinctly widening 

 towards base of abdomen. 



The true G. servus F., apparently does not occur in Fiji, Kirkaldy's record 

 being based on Stal's var. nigriceps, which, as has been shown, is a distinct species. 



28. Nysius (Nysius) pacificus, sp. n. (Text-fig. 12). 

 ? Nysius, sp. Kirk., Proc. Linn. Soc. N.S. Wales, XXXIII, p. 355, 1908. 



Colour and Structure. — Head strongly deflexed, long, about three-fourths 

 as long as wide across eyes (26 : 34), with the ocelli twice as far from one another 

 as from the eyes, strongly rugosely punctate ; black with the eyes, a spot at 

 base of vertex between the ocelli, a longitudinal stripe down the tylus, the 

 bucculae and the gula on each side below the antenniferous tubercle, pale yellow ; 

 an irregular stripe extending from the apex of each of the juga to the sides of 

 the yellow spot at the base of the vertex, and the base of the tylus, ferruginous ; 

 basal joint of antennae yellow with apical annulation, a strij)e on the dorsal 

 side, and a few spots on the ventral side, dark fuscous ; second and third joints 

 pale ferruginous somewhat darker towards the apices, fourth joint fusiform, 

 ferruginous ; relative lengths, 22 : 55 : 47 : 58 (62 divisions = 1 mm.) ; rostrum 

 extending to apices of hind coxae, ochraceous, shading to ferruginous apically, 

 the ultimate joint black ; bucculae extending almost to anterior* margin of 

 prosternum. Pronotum anteriorly as wide as long in the middle, posteriorly 



