80 



PSYCHE. 



[May 1S94. 



Casey, and many of them have only 

 latel}' been described by him ; the few 

 manuscript names are given as being a 

 triflie better than none because it will 

 be at least possible to ascertain the 

 identity of the species recorded by 

 reference to his cabinet. The .Scyd- 

 maenidae were named by Dr. Brendel. 

 My thanks are due to all these friends 

 for aid in the very difficult groups 

 which have to be investigated in this 

 class of work. 



Ptomafhagiis parasihis Lee. I 

 took several specimens at Iowa City in 

 the nest of Formica siihsericea Say. 

 This ant supports a host of inquilines 

 and parasites as tlie following record 

 of species will show. All of those 

 credited to it were taken from a single 

 large nest on the same afternoon. 



Scydmaeti/is rasus Lee. One spec- 

 imen at Iowa City, with Lasius niger 

 L.t 



Scydmaenus flavitarsis Lee. With 

 Fo7-7nica siihsericea, one specimen. 



Eumicriis motschulskii'Lec. ("Ap- 

 parently a large specimen of this species 

 and certainly not grossiis"), one s]5ec- 

 imen with Lasiiis niger at Iowa City. 



Adranes lecoutei Brend. Found in 

 the autumn, at Iowa City, in the nest 

 of a Lasius which Mr. Pergande thinks 

 may be a variety of L. mittutus Em. 

 In the spring, I take it with Z. aphidi- 

 cola Walsh. 



Ceophylhcs monilis Lee. Occurs 

 at the same time and in the same nests 

 as the preceding species. 



t Mr. Pergande writes that this is the form hereto- 

 fore considered identical witli L. alienus. 



BatrisTis liucaticoUis K\^ik. Taken 

 with Formica siihsericea. Only two 

 or three specimens obtained. 



Atlieta ioivaiia Casey (in litt. ) and 

 A. terniiiiata id., both occur with F. 

 siihsericea. Atlieta litiiatiila id. was 

 taken at Iowa City with Lasius niger 

 while A. exilissima id. was captured 

 with SolcHopsis debilis at Canon City, 

 Colo. 



Lomechiisa cava Lee. At Iowa 

 City with Canipoiiotiis pictus Forel. 

 Several specimens are often to be found 

 in the same nest. 



Myrmedo7tia calignosa Casey. With 

 ants at Iowa City, April 20. No spec- 

 imens of the host were saved. 



Myrmecochara crinita Casey. This 

 is the species which was most unfort- 

 unately referred to Gyrophaena in the 

 first paper. I am intebted to Mr. 

 E. A. Schwarz for first calling attention 

 to m\ error. Mr. Fauvel considers 

 tlie insect as constituting a new genus 

 liut now that it has received a specific 

 name it will be a matter of no great 

 difficulty to keep track of it in the 

 future. 



J\Iicrodo?iia occipita/is Case\'. With 

 ants, at Walnut, Arizona, July 21. 

 Two specimens. 



Myrinohiota crassicoriiis Casev. At 

 Iowa City with Lasius niger. Two 

 specimens. 



Heterotliops fiimigatiis Lee With 

 Formica siihsericea. It is more often 

 to be found at large than in ants' nests. 



Philonthiis microphthaliiuis Horn. 

 One specimen with F. siihsericea. 1 

 once got another specimen with an ant 



