10 



SUPPLEMENT TO PSYCHE. 



[November 1895. 



Mr. Bovle's garden. P. nanus was never 

 observed on any flower, but where P. viglhins 

 is found, there is plenty of Perth fa/'posa, 

 a low-growing 3'ellow-flovvered composite. 

 The $ of P. Tigilanf was actually swept 

 from the Pec/is, early in September; and 

 later, individuals of the same species were 

 seen occasionallv to visit tlie flowers for an 

 instant onlv. The ? of P. vigiluns was 

 caught on Sept. 19. 



It must be admitted that the two species 

 are very closely allied, and it inay be that the 

 comparatively bare face of the P. ntinua is 

 due to the contact of my wet finger-tip. 

 But the ornamentation of the end of the 

 abdomen is difterent, and there is also the 

 difference in the antennae; so that we may 

 safely assume, I think, that we have to do 

 with distinct species. 



Phileremus verbesinae. n. sp. — $ 6-7 mm., 

 form elongate, head and thorax black, abdo- 

 men and legs rufous. Pubescence consisting 

 of small white scales, which cover the Iiead 

 and thorax to such an extent that thev appear 

 grey. Head broad, face depressed at sides, 

 clypeiis rounded and prominent, strongly 

 punctured; clypeus, area between antennae, 

 and sides of face below, practically bare of 

 scales, or the space between the antennae 

 may be scaly. Mandibles rufous. 



Antennae dark brown, 12 jointed, last joint 

 normal, first joint of flagellum not quite as 

 long as 2+3, but very nearly so. 



Thorax bulging at sides, tubercles elevated, 

 scutelluin moderately bilobate, postscutel- 

 lum distinctly bilobate. Legs rufous, coxae 

 and femora except ends, blackish. Hind 

 tibiae and tarsi hoary from white scales. 

 Tibial spines pale yellowish. Claw small, 

 cleft, the inner tooth smallest. 



Tegulae rufous. Wings very short, reach- 

 ing only to middle of fourth segment of 

 abdomen, yellovvish hyaline, area enclosed 

 by the nervures smaller than that beyond 

 them. Nervures dark brown, stigma little- 

 developed : marginal cell extremely short, 

 obliquely truncate; first submarginal large, 

 subpyriform ; second submaiginal small. 



much higher than broad, narrowed above, it 

 is much tlie size and shape of the marginal, 

 placed transversely, but a little larger. Second 

 submarginal receiving both recurrent ner- 

 vures, the first at extreme base, the second 

 a little before its apex. 



Abdomen granular, rufous, the apex black- 

 ish. Segments 1-4 with conspicuous, rather 

 broad bands of white at their distal margins. 

 These bands are not at all constricted in 

 the middle. 



Hab. — Las Cruces, N. M., Sept. 20, 1895, 

 four specimens on flowers of Verbesina 

 encelioides. This is a most interesting species, 

 showing the nearest approach to Pliileremu- 

 lus yet seen in Phileremns. With its Plii- 

 /f/'Cw/^.^-venation, however, go Phileremiis- 

 habits; for the bees were visiting the flowers 

 just as any bees might, and were caught 

 without difliculty with the finger and thumb. 

 None were seen flying over the sand like 

 P/iilereniiilus. On the Verbesina., at the 

 same time, I got Perdita beata, n. sp., a 

 beautiful ^-ellow species just like luteola 

 (which lives on 5;^(?/o-'/rt) but at least S mm. 

 long, with a densely pubescent mesothorax. 

 It will be described fully elsewhere. 



Phileremus mesillae, n. sp. — ^, 6 mm. 

 long, short, robust, the abdomen not so 

 long as head and thorax combined; black, 

 with appressed white pubescence. Face 

 covered with pubescence, vertex compara- 

 tively bare, scape pubescent, flagellum bare, 

 dark brown. First joint of flagellum not 

 as long as 2-I-3, 2 longer than 3. Thorax 

 more or less covered with pubescence, 

 which becomes very sparse on hind part 

 of mesothorax, scutellnm except hind 

 border, and middle of metathorax. The 

 mesothorax and scutellum are strongly 

 and densely punctured. Scutellum not 

 spined, and only very obscurely bilobate. 

 Legs black, more or less pubescent, tarsi and 

 tips of tibiae ferruginous. Wings hyaline, 

 nervures and stigma dark brown, marginal 

 cell obliquely snbtruncate at tip, 2d sub- 

 marginal about \ shorter than first, receiv- 

 ing both recurrent nervures, the first about 



