DRAGONFLIES IN 1897- 33 



first two abdominal segments are very different, being small and 

 clear ; these segments have conspicuous transverse depressions. 

 Hab. Colorado (C. F. Baker, 1591). Taken at flowers of 

 Solidago canadensis, at Fort Collins, Aug. 8th, 1895. 



Nomia persimilis, Ckll., ined. 

 The female occurs at Albuquerque, N. M., in company with 

 Andrena helianthi, to which it has a remarkable superficial 

 resemblance. The male is larger than bakeri (about 13 mm. 

 long), and has black legs and light testaceous tegulse. The 

 punctuation of the male abdomen is small and close as in bakeri, 

 but the hair-bands are thin and weak, scarcely deserving the 

 name of bands. Flagellum black; face quite broad. Also 

 found at Lincoln, Nebraska (L. Brunei - ), and in the Mesilla 

 Valley of New Mexico. The female visits the sunflower in 

 September. 



P.S., Dec. 31st. — I have just received from M. J. Vachal an 

 interesting paper on the genus Nomia. He describes M. triangu- 

 lifera from a single male taken in Kansas : this new species is 

 evidently very close to my N. persimilis, and may even be iden- 

 tical with it. He also re-describes N. cressoni, Westw., 1875 ; 

 and it certainly seems probable that the name — generally re- 

 garded as a synonym of nortoni — belongs to a distinct species 

 inhabiting Mexico. — T. D. A. Cockerell. 



MesiUa, New Mexico, U.S.A. : Dec. 24th, 1897. 



DRAGONFLIES IN 1897. 

 By J. Arkle. 



I had intended continuing my season's experience among the 

 dragonflies upon the lines of my previous notes (Entom. xxx. 250). 

 However, the capital paper by Mr. Lucas, I. c, p. 277, together 

 with the admirable illustrations, tempts me to consider the 

 subject of greater importance, and to treat it separately. 



By woody brooks in "the flowery month of June" Calopteryx 

 virgo may frequently be met. It is by no means common about 

 Chester, but I saw half-a-dozen on the wing in June and July. 

 A couple of these were sporting over some rushes on the margin 

 of the Dee near Eaton Hall. Worthenbury, however, some 

 twelve miles higher up, is the great home in the district for this 

 handsome dragonfly. There it may be seen in scores. 



Wanting a series of Pyrrhosoma minium for a correspondent, 

 I made a couple of close searches in the two haunts known to 

 me in Delamere Forest about the end of June, but at neither 

 place was it in evidence ! The fact was, the character of both 



