284 



PSYCHE. 



[Aug-ust^Dercmher 1SS9. 



species drawn up with great care and labor 

 by Mr. W : H. Ashmead, and now waiting 

 publication. 



A short 13th Report has been published, 

 containing a figure of the "wound-gnat." 

 Dr. John Hamilton has examined a small 

 collection of Custer co. coleoptera, and finds 

 therein a probably undescr^bed species of 

 gyrinus. Mr. W : H. Ashmead has reported 

 on some Custer co. hymenoptera, five of 

 which are new species, one Vibrio colora- 

 de/isis Ashm. being the first of its genus 

 detected in the United States. In Wet Moun- 

 tain valley, Pyrameis card/ti has been out in 

 great force; and contrary to all expectations, 

 Colieis eurytJieme var. intermedia appeared 

 on 28 April. Last year no orange forms 

 appeared in the early spring, all were autum- 

 nalis. Photofsis alcanor Blake has appeared 

 at light: this is a spring species in Wet 

 Mountain Valley, being wholly supplanted by 

 P. glabrella Cr. later in the year. An empty 

 SmerintliHs egg found on a willow leaf at 

 West ClifY" has aroused some curiosity, as 5. 

 astartc, the only known species in the dis- 

 trict, was believed to feed on Populus. A 

 larva of Hipparckia 7-idingsii was found 

 hibernating under a rock in Custer co., and 

 sent to Mr. W: H. Edwards, who reports it 

 to be in good health, and it will no doubt 

 form material for one of Mr. Edwards's admir- 

 able life-histories. 



Report on Entomology — May, 18S9. — 

 The recent election of officers and council h:is 

 resulted as follows : president : C. F. Morri- 

 son, secy : T. D. A. Cockerel!, treas. : H. G- 

 Smith, Jr., council : C. H. Merriam, H. W_ 

 Nash, A. S. Packard, D. Gale, D. W. Park, 

 and J. M. Coulter. The membership is now 

 65 ; two entomologists, Messrs. L. O. Howard 

 and J. W. Tutt have joined during the month. 

 The additions to the Colorado insect-fauna 

 for May are rhopalocera, i var. ; heterocera, 

 6 and i var. ; homoptera, i ; and dipcera, 3. 



A good deal of work has been done which 



cannot now be reported on fully. Galls 

 collected at West ClifThave produced an abun- 

 dance of hymenoptera and diptera, which 

 will form material for an extensive account 

 in the future. Galls of Rhodites bicolor Harr. 

 have been especially prolific in chalcid para- 

 sites, as also have those of Cecidotnyia salicis- 

 strobiloides O. — S. Small flat leaf-galls on 

 rose have produced Rhodites rosaefolii n. 

 sp., as well as some chalcids. 



An interesting Trypeta has been bred from 

 woolly galls on Bigelovta. The sawfly reared 

 from a larva, about 20 mm. long, light bluish 

 green marked with yellow patches and black 

 spots, found on willow in West Mountain 

 Valley last jear, has been indentified as a 

 new species oi Messa by Mr. Ashmead, and 

 both imago and larva will be described fully 

 hereafter as M. salicum n. sp. Among diptera, 

 gonia exul Willist. was found at West ClifT 

 16 May, and 25 May, the curious pupae of a 

 species of il/;'c;'oc?OM were found in a nest of 

 Formica ititegra at the same place. A prob- 

 ably new species of Orthezia has turned up 

 in an ant's nest in Custer co. — but of this 

 more hereafter. Mr. H. G. Smith Jr. , has sent 

 specimens of P/iyllofreta pusilla Horn ( = 

 alhionica auct., non Lee.) from Denver, 

 where they are injurious to the cultivated 

 cruciferae. Pyractomena borealis appeared 

 at West Cliff on May 26. It was found that 

 the light of this beetle could be intensified 

 at will by gently pressing the thorax and 

 fore part of the abdomen between the finger 

 and thumb. Pamphila tineas (kindly inden- 

 tified by Mr. W. H. Edwards), was found 

 abundantly on a dry beach above Grape 

 Creek in Custer co., visiting the flowers of 

 Senecio and Erysinum. Mr. H : Edwards 

 has identified a new species of ^c^cr/« from 

 Custer CO., which he will describe later. 



T. D. A. Cockerel/ {Secretary). 



No. 156 was issued 15 April 1889. 

 No. 157-159 were issued 28 July 1889. 



