64 THE ENTOMOLOGIST. 



shaped ; no dog-ear marks ; lateral face-marks ending in an emar- 

 ginate truncation at about the level of the antennal sockets ; first four 

 tibiae dark behind ; abdomen very dark brown, with obscure transverse 

 yellow bands, not reaching the lateral margins, at bases of segments 

 2 to 4 ; venter dark brown, becoming pale reddish apically ; second 

 recurrent nervnre scarcely visible. 



Var. a. (? , Upper part of clypeus occupied by a quadrate dark 

 brown patch, emarginate on its lower edge ; supraclypeal mark divided 

 into two spots ; abdomen with only the bands on the second and third 

 segments, these very obscure, and interrupted in the middle. 



Hah. Juarez, State of Cbihnahua, Mexico, Oct. 6th, 1899 

 (Ckll.) ; two females, five males, all at flowers of HeUotroimim 

 curassaviciun. P. heliotropii 2 is close to P. stottleri, but 

 smaller, with the light jDarts of the abdomen much yellower ; the 

 male has face-markings a good deal like those of P. higelovia. 



Hypomaerotera callops, Ckll. & Porter, subsp. nov. pei'similis. 



Both sexes a trifle smaller than the type ; female with the spot at 

 the apex of the wings usually distinct. Male with the flagellum clear 

 cream-colour beneath ; the legs with the black rather less developed, 

 and the light part of the face slightly tinged with yellow. There is 

 also a well-developed supraclypeal mark, and the marginal cell (male) 

 is considerably shorter than in catlaps. Face not so hairy in male as in 

 type. 



Hab. One male at flowers of Trihulus cirandiflorus, Oct. 7th ; 

 many females at flowers of Physalis, Oct. 9th. All at Phoenix, 

 Arizona {Ckll.). I should hardly separate this on the female, 

 but the male is palpablj^ distinct. 



Calliopsis coloradensis coloratipes (Ckll.). 



This was described as a variety of C. jJavifrons, but it is really a 

 subspecies of C. coloradensis. The female, not before described, re- 

 sembles that of coloradensis, but is easily distinguished by the clypeus 

 having only two minute dots, instead of two black bars, and by the 

 presence of the dog-ear marks. 



Hab. Mesilla Park, N. M., Sept. 1st, at flowers of Isocoma 

 icriglitn, two males, two females, in cop. (Cldl.) ; Phoenix, 

 Arizona, Oct. 7th, at flowers of Isocoma harticegi, also rolling in 

 the dust, many males and females in cop. {Ckll.). Compared with 

 the typical (N. M.) form, the Arizona male has the face-markings 

 yellower, and the female has the dog-ear marks smaller, and the 

 clypeus often vrith rudimentary bars, thus approaching true 

 coloradensis. 



Xeiwglossa patricia, Ckll., subsp. nov. angustior. 



(? . A little smaller and less stout, hind legs noticeably smaller 

 and more slender ; apical plate of abdomen narrower, and rounded at 

 the tip, like the end of a finger, instead of truncate. 



