98 



FAUNA HAWAIIENSIS 



(30) Nesoprosopis longiceps, sp. nov. 



Praecedenti affinis, capite elongate, supra antennas densissime punctato, 

 mesonoto opaco dense aequaliter punctato, propodei area antica rugosa, abdomine 

 baud nitido, alis baud infuscatis ; c/' colore fere praecedentis sed niandibulis, pronoti 

 tuberculis, antennarum articulo basali, tibiis posticis et intermediis (basi extrema 

 excepta) nigris ; tarsis omnibus plerumque flavis vel pallidis, rarius piceis. Long. 

 575— 8-5 mm. (Plate II. fig. 3.) 



Male, with facial markings like those of A^. blackbur^ii, but with the mandibles, 

 the scape of the antennae, and generally the labrum, black ; face extremely narrow 

 between the eyes and longer than its greatest width across them ; plate above the 

 clypeus very narrow and elongate ; head above the antennae very densely punctured, 

 especially over the middle portion, the surface dull with short inconspicuous pale 

 pubescence ; the cheeks between the mandibles and eyes short ; scape of the antennae 

 twice or more than twice as long as wide, its anterior margin widely and shallowly 

 arched beneath, the flagellum beneath fulvous. Mesothorax and scutellum hardly 

 shining (often quite dull), closely and evenly punctured, clothed with grey pubescence ; 

 propodeum with the anterior area irregularly rugose to the brow — more strongly so 

 in some examples than in others ; wings in fresh specimens very clear, with dark 

 neuration. Abdomen dull, without definite puncturation ; eighth ventral segment with 

 its process somewhat dilated, bifurcate at the apex, the bifurcations somewhat narrow 

 and fringed with long hairs. The legs are variable in colour, but all the tarsi are 

 generally yellow or at least pale ; the posterior and intermediate tibiae are black with a 

 yellow spot at the base and sometimes at the extreme apex ; tarsi rarely entirely piceous. 



Female, without yellow facial markings ; the anterior tibiae pale in front ; antennae 

 with the flagellum fulvous beneath ; face very long and narrow for this sex, the apex 

 of the clypeus slightly emarginate ; head above the antennae finely and very densely 

 punctured (at least except at the extreme sides), dull, with short inconspicuous pale 

 pubescence, the whole front hardly at all convex longitudinally. Mesothorax and 

 scutellum closely and evenly punctured, not shining ; anterior area of the propodeum 

 rugose, more strongly so in some examples than in others, sometimes irregularly, 

 sometimes more or less longitudinally. Abdomen dull, impunctate, the apical segments 

 with pale hairs ; legs black with silvery pubescence ; wings in fresh examples almost or 

 quite clear. 



Hab. Coast and lowlands of Molokai, Lanai, and Maui. 



Obs. Sometimes examples are taken which have the abdomen more or less of an 

 immature-looking red colour — the so-called ' highly-coloured ' varieties of Smith and 

 others. Such individuals are liable to differ also in sculpture and other respects from 

 typical specimens, not only in this, but also in other species. 



