217 ENTOMOLOGICAL NEWS [May, '13 



when I got off the train, and I had already lost an hour, so I 

 made what haste I could in the hot sun to the place indicated, 

 where I found in a small space more new and interesting Dip- 

 tera than I ever collected in the same time before. Within 

 two hours the following and many more common species were 

 obtained : Anacampta latinscula and two new species ; Doli- 

 chopus ciliatiis, amnicola, obcordatus and five undescribed spe- 

 cies ; Sphegina n. sp., Eiiparyphus n. sp., Asyndetus n. sp., Ca- 

 lobata pallipes, Palloptera jucunda, Diaphoriis palpiger and 

 opacus, Hydrophortis sodalis and niagdolenae, Lispa tentacu- 

 lata and uliginosa, and some not yet fully determined. In 

 accordance with my plans, I continued my journey at ten that 

 evening, but there are some very attractive-looking high moun- 

 tains a few miles south of Wells that had timber and snow 

 upon them, which would in my opinion be one of the best 

 collecting fields in the West. 



Hazen, Nevada, was reached the next morning. A good 

 hotel is the principal feature of the place, which consists prin- 

 cipally of a few railroad employees. The Soda Lakes are 

 about ten miles south, being some two miles from Mirage 

 siding, on the Fallons branch. They are small bodies of very 

 alkaline water, where quite a business was done in the manu- 

 facture of soda until the seepage from the new irrigating 

 canals of the Truckee-Carson government irrigation project 

 raised the level above the evaporating beds and put a stop to 

 the enterprise. I stayed over night with the caretaker at the 

 works and collected at the shore of the lakes Ephydra hians 

 and Caenia hisetosa, as at Great Salt Lake. A single male 

 of Hydrophorus plumhcus Aid. was found also, known previ- 

 ously only from a single female from Soap Lake, Washing- 

 ton. Around fresh or brackish seepage I found another new 

 species of Dolichopiis, Hydrophorus aestunm and gratiosus, 

 Pelastoneurus cyaneus, Thrypticus fraterculus, and Melieria 

 occidentalis. Chrysops discalis was occasionally present. 



On July 14 I made a visit to Reno and called upon Profes- 

 sor S. B. Doten, whom I found much engrossed with his in- 

 teresting investigation of the habits of Hymenopterous para- 

 sites, for which he has invented several ingenious pieces of 

 apparatus; his devices for instantaneous photography under 



