20 THE CANADIAN ENTOMOLOGIST. 



bent, and the distal end with a rather strong flange. Joints of antenna 

 about as follows : III .65, IV .52, V .40, VI .18, VII .79 mm. Antennal 

 tubercles strongly gibbous, and first joints of antennas moderately gibbous; 

 Cauda conical and upturned. A few of the eyes of embryos usually show as 

 bright red specks in the abdomen. No dark markings on ventral surface. 



The black coloration above consists of rather broad irregular trans- 

 verse bands, one for each segment of the thorax and one each for joints 2, 

 3 and 4 of the abdomen, the last being broadest and the only one that 

 extends across the middle of the dorsum, the others being cut by a median 

 light portion concolorous with the rest of the body. 



It seems probable that some of the past references to M. dianthi 

 are really of this species. 



I hesitate to call this a new species, but have been unable to find a 

 description that will fit it. It is closely allied to the persicce.^ dianthi, 

 achyrtmtes group, especially in the alate form. 



Mr. Bragg has taken this louse upon liliaceous plants, asparagus, 

 asparagus fern, Aquilegia and Rumex sp. in the greenhouse, and it was 

 sent me from Boulder, Colorado, by Professor T. D. A. Cockerell, who 

 found it in large numbers upon a lily indoors. I have taken it repeatedly 

 upon Viiica and asparagus in greenhouses. Mr. Bragg tells me he has 

 found it colonized upon several other greenhouse plants which he has not 

 noted. It is evidently a very general feeder when abundant. Sexual 

 forms and eggs have not been found. There are many apterous but few 

 alate forms in the College greenhouse at this date, Nov. 20, '07. 

 Cailipierus rohinice, Gillette. (For description see Vol. XXXIX, page 395.) 



Winged viviparous female, plate i, fig. 6; oviparous female, fig. 7 ; 

 winged male, fig. 8. 



This louse is solitary in its habits, and the winged forms are very active 

 jumpers upon being approached. It has been fairly common, but not 

 abundant, upon the under side of the leaves of the black locust in Denver 

 and about Ft. Collins for the past two years. On November 9th, after 

 the leaves had nearly all fallen, I saw the oviparous females with their 

 long-drawn-out abdomens depositing eggs upon rough places in the bark 

 of small limbs of locust trees in Denver parks. 



EXPL.ANATION OF PlaTE I. 



Figures i, 2 and 3, alate viviparous female, apterous viviparous 

 female and alate male of Myzus Braggii, n. sp. Figures 4 and 5, apterous 

 viviparous femile and alate viviparous female of Mizus vincce, n. sp. 

 Figures 6, 7 and 8, alate viviparous female, apterous oviparous female and 

 alate male of Callipterus 7-obinice, n. sp. All enlarged 15 diameters. 

 Original ; Miriam A. Palmer artist. 



