26 FAUNA HAWAIIENSIS 



Male black, the prothorax often with two spots on the hind-margin and a 

 small one on the tubercles, a transverse spot on the postscutellum, a band usually 

 broad and entire on the second abdominal segment, a spot or line on each side 

 of the third or fourth, a wide band on the fifth, and one on the sixth, yellowish- 

 white. Basal segment also sometimes with an apical spot. 



Female with a line on the scape of the antennae, the basal part of the mandibles, 

 two spots or a band on the prothorax, a transverse spot on the scutellum and 

 postscutellum, a broad band on the second abdominal segment, a narrower one on 

 the third and fourth, sometimes also a line on the posterior and intermediate tibiae 

 beneath, a spot at the apex of the front tibiae, on each of the posterior coxae and 

 trochanters, and a small one on each side of the second ventral segment of the 

 abdomen, yellowish-white. 



These markings are very variable. 



Male, with the fifth joint of the flagellum of the antennae emarginate beneath, 

 hardly produced at the apex. Head in front, and the mesothorax with dense and 

 rugose but shallow puncturation. Propodeum more or less longitudinally rugose. 

 Abdomen with the second segment extremely finely punctured ; beneath, somewhat 

 strongly convex, and finely punctured ; fourth ventral segment flattened or slightly 

 depressed, fifth and sixth depressed. Apical dorsal segments with inconspicuous 

 pale pubescence, and the puncturation almost obsolete. 



Female very like the <^ in general sculpture, but the puncturation usually slightly 

 weaker. Posterior tibiae roughened, the asperities with short pale spines. Apical 

 dorsal segment elongate and very narrow, coarsely punctured at the base, and sparsely 

 fringed with pale hairs. Second ventral segment sparsely punctured about the middle, 

 very minutely and densely on the lateral pubescent spots. Wings subhyaline in 

 both sexes. 



Nesocrabro covipactus var., lanaiensis var. n. 



Male with a large spot on the scutellum, as well as the postscutellum, yellowish- 

 white ; the band on the second abdominal segment narrow and interrupted. In 

 the ? this band is less wide than in the typical specimens. The surface of the head 

 on the vertex is smoother and less dull in both sexes, and the surface of the meso- 

 thorax posteriorly in the ? somewhat smooth and shining between the punctures. 



Hab. Mountains of Kauai (2500 — 4000 ft.), preying upon Diptera of moderate 

 size, and forming burrows in trodden pathways and bare banks in the forest. Var. 

 lanaiensis. Mountains of Lanai (above 2000 ft.). Not common. In the </ the 

 tendency seems to be to an increase of thoracic, and decrease of abdominal marking, 

 as compared with the Kauai series. 



