that they ought not to be separated; but as he seemed to be 

 unacquainted with the females, and his illustration of the genus 

 being consequently imperfect, I have thought it advisable to 

 publish it. 



The following are the British species, with their characters : 



1. R. longicorne Meig. 4. 28. 1. 



Female. Coppery-green, head thorax and scutellum 

 more blue, forehead violet, clypeus silvery-grey; antennae 

 black, similar I believe in both sexes, but longest in the 

 males, 5th joint half as long as the 3rd ; wings fuscous, 

 costa brown ; halteres yellow ; legs black. Length 2| 

 lines; antennge 1 line. 

 Mr. Dale took two specimens near the decoy pond in the New 

 Forest in June, where Mr. Rudd has also found it in abun- 

 dance : on the 27th of August Mr. Haliday and myself ob- 

 served it in a peat-bog going to Knoch in the Isle of Skye; and 

 the beginning of last August two specimens alighted on our 

 friend Dr. Farren as we were riding to Oughterard in Gal way. 



2. macrocerum Wied. — Curt. Brit. Ent. pi. 568 S • 



I first met with the sexes in abundance on nut bushes and 

 hedges in Mr. Dale's gai'den at Glanville's Wootton the 10th 

 of May, when I was first led to believe that the antennae were 

 very diiferent in the sexes. I have also captured it in the New 

 Forest the beginning of June ; and Mr. Haliday has taken this 

 and R. caliginosum near Holywood in Downshire. 



3. brevicorne Curt. Guide. 



Male similar to No. 2, but the forehead is green, the an- 

 tenuff", are rather shorter, the 3rd joint is considerably 

 shorter narrower and more tapering, and the 5th much 

 longer and slenderer ; the coxee are slate-colour and the 

 clypeus silvery-grey : length 1 i line. 

 I took a male the middle of October in the Isle of Wight. 



5. caliginosum Meig. ? 4. 29. 4. 



" Olive green ; legs rufous; apex of hinder thighs, tibiae 



and tarsi fuscous ; forehead cyaneous; wings fuscescent: length 



1 line." Meig. 



4. fasciatum Meig. tab. '6^.f. 5. 



Male. Greenish, forehead purple, clypeus silvery-grey, 

 antennae stout, nearly as long as the head and thorax, 

 black, seta elongated ; wings pale fuscous ; halteres yel- 

 low; 2nd and 3rd segments of abdomen dark ochre, 

 edged with green ; legs pale ochreous, tarsi fuscous to- 

 wards the tips : length 1 line. 

 The only specimen I have seen I took in a hedge at South- 

 gate. 



The Plant is Veronica verna (Vernal Speedwell). 



