4 Journal New York Entomological Society. [ VoL xxvii. 



Described from a specimen collected by J. L. Zabriskie at Roches- 

 ter, N. Y., June 10, 1905. Type in the American Museum of Natural 

 History. 



This species may be distinguished from other members of the 

 genus of similar color by the sculpture of the propleura and pro- 

 podeum and the form of the abdominal petiole. 



Serphus sequoiarum new species. (Fig. 2.) 



£. Length 4.5 mm. Black ; second abdominal segment, except apex, rufo- 

 ferruginous ; legs yellowish brown, anterior femora, tibiae and tarsi and middle 

 tibiae light yellow, hind tibiae somewhat paler than their femora. Head two 

 and one half times as broad as long, malar space as long as the width of the 

 mandibles at base, with a distinct furrow. Clypeus broad, sparsely punctate, 

 its anterior margin straight. Eyes bare. Antennal scape one half longer 

 than thick; first flagellar joint twice as long as the scape, nearly five times 

 as long as thick at apex; following joints decreasing very gradually in length, 

 the penultimate over four times as long as thick and two thirds as long as 

 the first ; pronotum less than one third as long as the mesonotum, transversely 

 striate in front of the constriction, trilobed behind. Parapsidal furrows in- 

 distinctly defined, but more prominent than usual. Propleura irregularly 

 striate-reticulate anteriorly, smooth behind ; its upper portion with a convexly 

 raised band which is separated from the upper edge by a shallow groove or 

 depression that is longitudinally striated and narrower than the elevated por- 

 tion ; the anterior end of the elevation forms the lateral lobe of the pronotum. 

 Mesopleura longitudinally striated above in front of the raised portion and 

 with a series of large punctures inside the posterior edge above the middle ; 

 below the middle these are elongated to form short horizontal striae. Propo- 

 deum rugose-reticulate, with a complete median longitudinal carina, but with- 

 out areas. Abdominal petiole as long as broad ; grooves at base of second 

 segment shorter than the petiole. Legs slender ; longer spur of hind tibia 

 one third the length of the metatarsus ; tarsal claws simple. Wings very 

 slightly tinged with brownish, radial cell very short, but longer than the width 

 of the radial vein ; both sections of this vein prolonged downward as brown 

 streaks, the basal streak longer ; cubital and discoidal veins indicated as 

 brown streaks. 



One specimen collected by Prof. A. L. Melander in the Muir 

 Woods, Marin Co., California. 



This species is easily recognizable by the peculiar conformation 

 of the propleura and the conspicuously lighter color of the front legs 

 and middle tibiae. 



Serphus cockerelli new species. (Fig. 3.) 



<$. Length 5 mm. Black; four anterior coxae and all trochanters and 

 femora piceous ; tegulae, tibiae and tarsi yellowish brown. Head somewhat 



