ENTOMOLOGICAL WORK IN COLORADO. 301 



meroti'opis citrina, Scudd. ; Haclrotettix trifasciatus, Say ; (Edi- 

 poda haydenii, Thos. ; Scyllina delicatula, Scudd.?; Acridium 

 emarginatKm, Ubler ; Dissoteira Carolina, L. ; Arphia tenehrosa, 

 Scudd. ; Mestohregma plattei, Thos. (apparently new for Colorado) ; 

 Philibostroma quadrimaculata, Thos. ; Melanopliis packardiif 

 Scudd. ; Melanoplus atlanis, Riley ; var. with bluish hind-tibiae, 

 which I propose to call var. coerideipes ,- it would appear to be a 

 variety characteristic of the Western States, specimens from the 

 East invariably having the hind tibiae reddish. (See ' Report U. S. 

 Commissioner of Agriculture for 1885,' p. 306). Mdanoplas 

 differentialis, Thos., black var., this and the last species are new 

 to my Colorado list. 



We had to turn out with picks and shovels, and make a road 

 down the Red Creek Caiion, over which we eventually drove, 

 and found ourselves just in Pueblo County, and made a camp in 

 a grove of cottonwood trees {Popidus halsamifera var. candicans), 

 the place being known as Cottonwood Springs. This is in 

 rather open country, the vegetation consisting mainly of (Jitercus 

 undidata, Juniperus virginianus, and Yucca, while wild vine 

 (Vitis riparia), and Virginia creeper [Ampelopsis quinquefolia) 

 grew near the springs. The curious grama-grass {Bouteloua 

 oligostachya) is also noteworthy, affording excellent food for the 

 cattle which graze around. Insects were not abundant in this 

 locality, but as nearly everything found was new to Pueblo 

 County, such few as were obtained were very acceptable. Seven 

 species of butterflies were found, namely, Nathalis iole, Colias 

 curytlieme, Limenitis iceidemeyerii, Daiiais plexippus, Pyraincis 

 huntera, Euptoieta claudia, and Pamphila nevada, Scudd., the last 

 species having been identified by Mr. W. H. Edwards. An 

 ichneumon was captured, which Prof. C. V. Riley identifies as 

 Agama glahrella, Cr. ; it is smaller than the form of that species 

 we get in Custer County. Prof. Riley also identifies an Asiliid 

 fly from this locality as Ospriocerus minor, which is an addition 

 to my Colorado list. Four Orthoptera were taken, one of them, 

 Hcspcrotettix viridis, Scudd., is a very pretty species, apple-green, 

 with blue stockings and red garters, it was the most abundant of 

 the four. The other three are Staaronotus dliottii, Thos. ; 

 Spharagcmon ceqaale, Scudd. ?, and a species of cricket, Ccntho- 

 philus pallidus, Thos., which existed in considerable numbers, and 

 kept up a lively chhping at night. The Coleoptera were also 



