July, 1900.] 



PSYCHE. 



three males and five females from 

 Hamilton coimty, July. Reported pre- 

 viously from Lakin, Kearney county. 



M. marciilentits Bruner. One male, 

 Russell Co., August. This specimen 

 manifests a trait liable to appear in 

 short-winged varieties. It agrees with 

 Scudder's description of AI. 7narcu- 

 lentus with the exception of the darker 

 coloring of the upper portion of the 

 head and pronottnn, and the greater 

 length of the subgenital plate, but in- 

 stead of the normal abbreviate wing the 

 insect has well developed tegmina and 

 wings. The tegmina extend clearly 

 beyond the end of the abdomen and are 

 remarkably broad for one of this genus. 

 Width 6 mm., length 11 mm. (est.; 

 the tips were frayed). Basal half 

 testaceous, two or three testaceous spots 

 on discoidal area. Wings hyaline, 

 veins and cross-veins fuscous in distal 

 portion, glaucous basally.* 



Spretus vSeries. 



This group as classified by Scudder 

 contains seven species of remarkable 

 similarity ; five of the seven, however, 

 exist, in the United States, only west 

 of the Rocky Mountains. The other 

 two, at lam's and spretus, are at times 

 easily distinguished, and again speci- 

 mens of each are found which in every 

 particular fail to fit any written descrip- 



* We were unable to find reference to such a wing 

 development in this species. Since writing the above, 

 however, in conversation with Professor L, Kruner he 

 informed me that he had taken a number of the lang-winged 

 males of iiturculenhis in the vicinity of Colorado Springs, 

 Colo. S. J. H. 



tion we have met on the subject. Tlie 

 characteristics not shared by both seem 

 to be the extreme flaring and flatness 

 of the metazona in spretus and the 

 more nearly rectangulai' form of the 

 humeral angle as seen laterally in the 

 saine species. 



M. atlatiis Riley. ^ Genae and sides 

 of pronotum varying from yellowish 

 testaceous to dark griseo-fuscous. 

 Markings of vertex of pronotum varia- 

 ble, vertex generally showing a dark 

 mottled stripe widening posteriorly and 

 a lighter mottled linear area between 

 this and the eye. Sometimes the ver- 

 tex is marked with irregular diflusion 

 of fuscous. Dorsum of pronotum dark 

 griseo-fuscous, soinetimes uniform, and 

 noticeably darker along the median 

 line; or rarely, lighter in this position. 

 Occurs quite generally over the State. 



jSI. spretus Uhler. — In the field 

 work of 1S97 this species was errone. 

 ously reported upon the determination 

 of another as having been taken in 

 Edwards county that season.* The 

 next season, iSyS, a careful watch was 

 kept for its presence and on one morn- 

 ing it was decided to ascertain approxi- 

 mately the relative number of spretus 

 and atlanis present along the county 

 line between Edwards and Ford coun- 

 ties north of the Arkansas river. 100 

 specimens of these closely allied forms 

 were taken, kept apart from other 

 material, and iletermined. It was 

 found tliat of this number 19 were 

 spretus and 67 were atlanis. This 



•U. of K. Bull. Depart, of Ent., Oct., '97. 



