l6o ASHMEAD 



first joint of trochanters and the extreme apices of hind femora and 

 tibiae and hind tarsi, are fuscous. 



Type. — Cat. No. 5545, U. S. Nat. Museum. From Popof Island, 

 July 10. Two specimens. 



Genus Probolus Wesmael. 

 PROBOLUS SUBDENTATUS sp. nov. 



Male. — Length S.5 mm. Rufous or ferruginous ; the occiput, ocelli 

 and space anteriorly to the insertion of the antennte, the space sur- 

 rounding the clypeal spiracles and the sutures of the thorax, black ; front 

 and hind orbits, a spot on each side of the clypeus, a spot at summit 

 of eyes, and the palpi, yellowish-white. Wings hyaline or only faintly 

 tinged, the costal vein anteriorly and the stigma brownish-yellow, the 

 internal veins darker or brown. 



The head and thorax are distinctly, rather closely punctate, the met- 

 athorax being rugulose. The sutures of the thoracic sclerites, the de- 

 pression at base of scutellum, the mesonotal ridge extending on to the 

 scutellum, the depressions at the insertion of the wings, the incision 

 between the postscutellum and the metathorax, and the hind margin 

 of the metathorax at base of coxae and insertion of abdomen, are black. 

 The dorsum of the metanotum is very short, the metathorax being 

 obliquely truncate from just beyond its base, the upper hind angles 

 subdentate, the carinae very strong and forming complete areas, the 

 areola in outline semicircular, the spiracles being elongate. The ab- 

 domen is longer than the head and thorax united ; the petiole or first 

 segment is rather coarsely rugulose, with a hump-like elevation at its 

 apical third, its dorsum strongly bicarinate, the carinae extending from 

 base to apex ; segments 2 and 3 rugoso-punctate, both, however, smooth 

 toward apex, the gastrocoeli deep, transverse ; fourth segment finely 

 and sparsely punctate towards base, the segments beyond smooth or 

 nearly so, at most very sparsely and microscopically punctate. 



Type. — Cat. No. 5546, U. S. Nat. Museum. From Kukak Bay, 

 July 4. One specimen. 



PLATYLABUS INCABUS Davis. 

 Platylabus incabtis Davis, Trans. Am. Ent. Soc, xxiv, p. 352, $, 1897. 



Male. — Length 8.5 mm. Agrees fairly well with Davis's descrip- 

 tion of the female except as follows : The anterior orbits have a faint 

 much abbreviated white line opposite but a little above the insertion of 

 the antennas and an abbreviated but more distinct white line on the 



