56 



FSYCHE. 



[May iguo. 



setigerous. The otlier American spe- 

 cies are more like mtcrocephala. 



Macropsis atra n. sp. — Male. Length 

 4 mm. Form of robiistns. Head somewhat 

 narrower than pronotum, vertex very slightly 

 longer at middle than at eyes. Front un- 

 usually distinctly transversely aciculate 

 throughout. Ledges over antennal cavities 

 nearly in a straight line. Clypeus a half 

 longer than broad, with sides parallel, apex 

 subtruncate. Pronotum aciculate through- 

 out. Elytra sordid whitish opaque; hairs 

 strong, numerous, and black, except on 

 base of clavus where they are white and 

 weak. 



Beneath, with lower part of face including 

 margins of front, very pale sordid yellowish. 

 Upper part of face with most of front, vertex ; 

 pronotum and scutel (except the piceous 

 apex), black. Narrow margin along inner 

 angle of clavus ferruginous. Fore and mid- 

 dle legs slightly embrowned, hind legs 

 greenish. 



Last ventral segment nearly square, twice 

 the lengtli of preceding segment, hind nun- 

 gin nearly truncate. 



Described from a single specimen in 

 the National Museum collection, taken 

 in the Argus Mts., Cal., in May, by 

 Mr. Koebele. It closely resembles 

 hiunilis Stal, and may prove but a 

 variety of it. The extent of black is 

 not so great in atra. Atra resembles 

 some of the Me.xican and South Aineri- 

 can species more nearly than any other 

 species we have. 



Macropsis smithii n. sp. — Female. 

 Length 4 mm. Very stout. Head consid- 

 erably narrower than pronotnm; vertex 

 short; as long at middle as at eyes. Front 

 becoming nearly smooth below. Ledges 

 over antennal cavities strongly bent towards 

 clypeus. Clypeus distinctly, Init little, longer 



than broad with sides slightly converging 

 apically to the broadly rounded apex. Acic- 

 ulation on pronotum becoming obsolete 

 medially on anterior submargin. Elytra 

 liyaline, hairs strong, black fairly numerous, 

 weak and white on base of clavus. 



Pale straw color, legs greenish. More or 

 less of pronotum along hind margin, basal 

 portion of clavus, and sometimes narrow- 

 basal margin of scutel, black or piceous. 



Last ventral segment twice length of pre- 

 ceding; hind margin broadly rounded, on 

 either side of the middle with a narrow slit 

 extending to one-third the length of the 

 segment, and enclosing a rectangular tooth. 



Male like the female. Last ventral seg- 

 ment greatly enlarged, broader and three 

 times the length of the preceding segment; 

 subquadrangular, medially longitudinally 

 creased, the outer margins broadly rounded; 

 hind margin with a large subrectangular 

 tooth, rounded at tip, margins broadly 

 depressed, and bent backwards into the fis- 

 sure of the pygofers. 



Described from seven females and 

 one male in the Herbert H. Smith col- 

 lection, taken at Chapada, Brazil. 

 This species strongly resembles /ff//ei- 

 cens but it lacks the dark markings on 

 vertex, and presents a totally diflerent 

 form of genitals. 



Macropsis pallesccns (Stal.) — 1S62 

 Stal, K. Vet. Akad. Handl. B. 3, No. 

 6, p. 49 {Strag'aiiia pallescct/s) . 



There is a single tj'pical example of 

 this species in the Herbert H. Smith 

 collection, from Chapada, Brazil, col- 

 lected in November. The last ventral 

 segment is broadlv rounded apically 

 and has a good sized rectangular me- 

 dian notch. 



Macropsis soniiitiis n. sp. — Female. 

 Length 4.5 mm. Tlie general form and ver- 



