82 bulletin: museum of comparative zoology. 



on the slab. No. B3, type in the Museum of the University of Colo- 

 rado. 



This is a typical paniscine which looks very much like our living 

 North American species of Opheltes in habitus and color. Struc- 

 turally it comes closer to Parabates in which genus I have placed it. 



Opheltes Holmgren. 



There is a specimen, No. 2375, M. C. Z., Florissant, Col. (No. 

 46S0, S. H. Scudder Coll.) which appears to belong to Opheltes or 

 some closely allied genus. As it is not very well preserved I have not 

 described it. The size is rather small, about S mm. 



The tribe Banchini is represented in the collection by one species 

 referable to the genus Lapton and a second one belonging to 

 Exetastes. 



Lapton daemon, sp. no v. 



Sex? Length 9 mm. Body dark colored, the abdomen beyond the base 

 of the second segment more or less ferruginous; four anterior legs fusco-ferru- 

 ginous; hind pair darker, with honey-yellow trochanters. Antennae slender, 

 the basal joints very long, the first flagellar joint being about five and the 

 second about four times as long as wide; following growing shorter, those 

 toward the apex becoming quadrate. Thorax very finely punctulate or 

 shagreened; metanotum completely areolated. Abdomen long and slender, 

 gradually thickened apically; first segment slightly but evenly curved, as 

 long as the metanotum; its spiracles placed at about the basal third; second 

 segment nearly as long as the first and stouter; following stouter, all more 

 or less distinctly blackened basally. Legs long and slender, first three joints 

 of posterior tarsus about as long as the tibia. Wings hyaline ; stigma and veins 

 pale fuscous. Stigma lanceolate. Marginal cell long, the first section of the 

 radius less than one-half as long as the second. Discocubital cell rather long, 

 the discocubital vein slightly and evenly curved; transverse cubitus long and 

 strongly oblique, its base being nearer the base of the wing; recurrent nervure 

 received far beyond it, also strongly oblique, but in an opposite sense; second 

 discoidaf cell broad at the base; median and submedian cells seemingly of 

 equal length ; transverse median vein in hind wing apparently broken near the 

 middle. 



Type.— ^o. 2269, M. C. Z., Florissant, Col. (No. 8148, S. H. 

 Scudder Coll.). 



This species most surely belongs to the Banchini and apparently 

 comes closest to Lapton, although unfortunately the mouthparts and 

 the transverse median vein of the front wings are not preserved. 



