209 



various Solanacefe, one of which, S. rostratum, is characteristic of the 

 sub-alpine of Colorado, but is wanting in the mid-alpine 



Further details of this sort need not be now given, as I hope to be 

 able to describe the Santa Fe insect fauna at greater length hereafter, 

 in comparison with that of other localities. 



The more noteworthy insect pests which have so far come under 

 observation may now be brieiiy mentioned. 



(A) IMPORTED SPECIES. 



These are mentioned first, being the most troublesome. 



(1) OF BOTH MESILLA VALLEY AN^D SANTA Ft. 



The codling moth {Carpocapsa pomonella) , though iinkuown in either locality tern 

 years ago, is now extremely injurious, being altogether the worst insect pest in the 

 Territory. Mr. Boyle, of Santa F^, informs me that he has seen the native jays in 

 his garden eating the larvjp, finding them in places where they liad gone to pupate. 

 Mr. H. Casad, of Mesilla, remarked to me that in that locality many of the larvae 

 entered the fruit at the side. This statement was confirmed by an examination of 

 his orchard in company Avith him. 



In the Mesilla Valley apples injured by the codling moth are attacked by Dro- 

 sophila ampelophila ; but this fly has not yet been detected at Santa Fe. 



The house fly (Miisca domeslica). There does not seem to be any reason for sup- 

 posing that this insect is a true native of New Mexico, though it is now of course 

 cA'erywhere established. In the Mesilla Valley and at Albuquerque it is extremely 

 numerous, but much less so at Santa Fe. At Las Cruces I found Eucoila impatiens 

 Say (identified by Mr. Ashmead) on horse dung in a corral, and suspected it might 

 have been parasitic on house-fly larvae breeding in the dung. So long as the town 

 is full of corrals, cleaned out at not very frequent intervals, the fly plague seems 

 inevitable. 



The common cockroach, apparently true Blatta orientalis, is found abundantly in 

 Las Cruces, and more rarely in Santa Fe. In my house in Las Cruces I caught an 

 apparently undescribed Evania, which is probably parasitic, on the eggs of the 

 Blatta. The large Periplanefa americana has not been observed. 



The cabbage aphis (Ajihis brassicw) is sufficiently plentiful in both localities. At 

 Las Cruces it is parasitized by AUotria brassicw Ashm. 



The woolly aphis {Schizoneiira lanigera) is fairly common. 



(2) OF MESILLA VALLEY ONLY. 



The San Jos6 scale (JspifZio/Msj>erHiciosH8) is well established at Las Cruces, but 

 has only just reached the neighboring town of Mesilla. It has also been detected 

 at Cliamberino. 



The sesiid peach-borer (<S'. exitiosa) no doubt has l)een imported, and I have my- 

 self seen it in peach trees only just received from Missouri, and not yet planted. 



The peach shield-scale {Lecanium persicw) is found at Las Cruces, but so far has 

 done no serious damage. 



The cottony scale of the Osage orange {Pulvinaria maclurce) has been introduced, 

 and is found on a tree in Las Cruces, and also in a hedge between Las Cruces and 

 Mesilla. The Osage orange hedges in Mesilla, raised from seed by Mr. Bull, of that 

 place, appear to be free from the scale. 



There is also a large Lecanium (anew species or a variety of L. rohiniarum Dougl.) 

 on Osage orange iu Las Cruces. 



Stored grain suifers from the attacks of Triholium confusum and Calandra granaria. 



