UHLER ON INSECTS. 357 



more numerous tLau the other. Those of Denver were generally large 

 and stout, with the thorax longer, niDre rounded, and reflexed ante- 

 riorly, and with the discoidal bla,ck spot almost always broken into 

 several parts, or divided down the middle. Those from Bijou were of the 

 same type. The specimens from Colorado Springs and southward oc- 

 curred almost invariably on a bushy weed bearing, densely packed, 

 small yellow flowers. They were narrow, close-set, with the thorax 

 truncated in front, and the anterior margin evenly turned up, the disk 

 dull, the black spot entire and covering all but the margins, and with 

 antennae flattened. Eleodes obsoletus occurred under rubbish and dried 

 dung, and around the base of Yucca and Cacti. It extended all the 

 wa;^ from Denver to Caiion City on the hill-sides, and was most abun- 

 dant between Colorado Springs and the Garden of the Gods. It was 

 variable in all the localities, but most so near the last-named city. Eleodes 

 Idspilahris and E. extricata first occurred to me near Colorado Springs, 

 and from thence extended southwardly to Caiion City. I did not meet 

 with any specimens near Denver, nor at Golden, nor anywhere within 

 the limits of the mountains. Eleodes suturalis Say was rare and found 

 only near Denver. Eleodes tricostata Say was not seen elsewhere than 

 between Colorado Springs and the Garden of the Gods; but the speci- 

 mens found nearest to the mountains were more flattened, and had the 

 costal margin of the elytra more prominently recurved. Eleodes nigrina 

 Lee. was rare, and taken only in Manitou Park. Two specimens of 

 Askla elata Lee. were found running among the grass in theeveniiig twi- 

 light, the one near Colorado Springs and the other a short distance 

 west of Caiion City. Asida opaca Say was tolerably common and quite 

 variable in the width of its thorax and elytra and in the amount and 

 prominence of the reticulations of the surface of the latter. 



Of the Erotylidce, Ci/pherofylus hoisduvali Chev., occurred only in 

 Clear Creek Caiion. It was crawling on the surface at a considerable 

 elevation above the bed of the creek, and in the midst of the pine 

 woods, where there was bark and rubbish upon the ground. The 

 closest scrutiny failed to detect more than a single specimen, and I was 

 induced to believe that the season was too far advanced for its appear- 

 ance in the usual numbers. 



Meloidw were not numerous in species, but Epicauta ferruginea Say 

 was abundant everywhere, in the mountains and caiions and on the 

 plains. The sunflowers and thistles were sometimes crowded with 

 them, but generally only two or three were at once upon a single 

 flower. It was very variable in size, ranging from "6 to 10 millimeters 

 in length. Usually it affected the yellow flowers, which corresponded 

 well with its color; but occasionally it was quite as abundant upon the 

 white flowers of the Euphorbia and other similar plants. Dwarf speci- 

 mens were quite common, and frequented the same places as the large 

 ones. In tliis connection, however, it should be borne in mind that the 

 summer was a remarkable one, with very variable degrees of tempera- 



