230 JouRXAL Xew York Entomological Society. t^'"'- ^i^- 



6. Wings blackish all over, third segment with a pair of white spots ; larger 



species biguttatus. 



Wings black at tip only ; no white spots on abdomen ; small species. 



californicus. 

 •J. Second and third joint of antenna: as long as vertex width ; head long- 

 haired atrytone. 



Second and third joint of antennae not as long as vertex width ; head short 

 haired; clypeus and basal joint of antennae scarcely hairy maneei. 



Aporinellus rufus, new species. 



Female. — Reddish throughout, except black head, and the antenna beyond 

 the second joint; clypeus reddish; wings blackish at tip. Face below, posterior 

 margin of pronotum, and the first three abdominal segments at tip more or less 

 distinctly silvery. Antennae rather short, third joint scarcely, if any, longer 

 than the fourth ; clypeus truncate at tip ; posterior ocelli a little nearer to the 

 eyes than to each other ; longer spur of hind tibia two thirds as long as the 

 metatarsus ; second submarginal cell of fore-wing scarcely any longer than 

 broad. 



Length s to 6 mm. 



From Boulder, 30 May, i June, and Florissant, 19 June, Colorado 

 (Rohwer coll.) ; type in National Museum, cotype in coll. Banks. 



Aporinellus laticeps, new species. 



Female. — Colored as A. fasciatus, the segments of abdomen fasciate w'ith 

 silvery pubescence ; fore-wings blackish at tips, fumose elsewhere ; mandibles 

 reddish near tips. Clypeus truncate in front ; antennae rather short, but the 

 third joint is a little longer than the fourth, face plainly broader above than 

 below ; ocelli small and wide apart, the anterior ocellus fully three times its 

 diameter from the lateral ocelli, and these are nearer to the eyes than to each 

 other, longer spur on hind tibia fully two thirds of the metatarsus ; second sub- 

 marginal cell fully twice as long as broad, the second recurrent vein plainly 

 before tip of cell. 



Length 8 mm. 



Similar to A. fasciatus, but the noticeably wider vertex, and much 

 broader ocellar triangle distinguishes it. 



From Boulder, Colo., Sept. (Rohwer) ; type in National Museum, 

 cotype in coll. Banks. 



Table of Aporinellus. 



1. Thorax and abdomen reddish, head and most of antenn;e black rufus. 



Thorax and abdomen black 2 



2. Most of hind legs reddish ferrugineipes. 



All legs black 3 



3. Body not much sericeous, fourth segment of abdomen hardly sericeous at 



tip ; wings nearly uniform blackish apicatus. 



