58 



PSYCHE. 



[May 1900. 



]\/acrops/s ornatula (Slal.) 1862 

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

 6, p. 49 {Stragania ornatitla) . 



I have referred to this species six 

 specimens in the Herhert H. Smith 

 collection, taken at Chapada, Brazil, in 

 May. These specimens fit the original 

 description perfectly, except that they 

 are only 3.5 mm. in length. The last 

 ventral segment in the female is twice 

 tiie length of the preceding, the hind 

 margin very hroadly slightly produced, 

 hetween which and the lateral angles 

 on either side, there is a slight concav- 

 ity. In the male the last ventral seg- 

 ment is a half longer than preceding, 

 the hind margin truncate. 



Macrofsis ntfosctiiellatiisn. sp. — Female. 

 Length 4.5 mm. Mucli stoiitei' tlian robitstiis. 

 Head somewhat narrower than pronotum. 

 vertex somewliat longer at middle than at 

 eye. Clvpeus little longer than broad at 

 base, the sides gently converging to the 

 ronnded tip. Ledges over antennal cavities 

 distinctly bent towards the clypetis Pro- 

 notum aciculate throughout. Elytra sub- 

 hyaline, hairs weak and white towards base 

 of clavus, black on remainder of clavus and 

 coriuni, fairly numerous except at apex of 

 corium. 



Light green througliout, scutel except 

 apex, and adjoining border of clavus, rufous. 



Last ventral segment deeply emarginate, 

 the apex of the emargination with a short 

 broadly triangular projection. 



Male more sordid in coloration and with a 

 greater extent of rufous on the clavus. Last 

 ventral segment more than twice the length 

 of preceding, hind margin strongly rounded. 



Described from two females and one 

 male collected by myself in tiie foothills 

 yvest of Fort Collins, Colo., during 



Mav and Jinie. In the Prelim. List 

 Hemip., Colo., this species was con- 

 fused with robustus, but it is distinct. 

 I imfortunately made a partial distribu- 

 tion of it inider the latter name. It is 

 of frecjuent occiu'rence in Northern 

 Colorado. 



Macrofsis rob?tst//s Ulil. — This is 

 the most common species of the genus in 

 the United States. It occurs through- 

 out the Southern States froin the Atlan- 

 tic to the Pacific, and in the Rocky 

 Mountain Region as far north as North- 

 ern Colorado. I have many' specimens 

 from Arizona, California, Louisiana 

 and Alabama. Dr. Uhler also records 

 it from New Mexico and Texas. 



It is one of the smallest forms, clear 

 green to pale straw color throughout. 

 The clypeus is distinctly longer than 

 broad. The hairs on the elytra are 

 bhick throughout the clavus and cori- 

 um. The last ventral segment of the 

 female is shallowly bisinuate behind, 

 tlie included projection small, acute 

 and equalling the hiternl angles. 



Alacropsis alabaniensis n. sp.. — Female, 

 Length 4.5 mm. Closely resembling robus- 

 tus from which it differs as follows : Cl3'peus 

 scarcely as long as broad, the genae dis- 

 tinctly incurved to meet its tip. Hairs on 

 elytra weak, white, and rather sparse 

 throughout. The commissural margin from 

 the scutel to the apex of eljtra narrowly 

 bl.ackened. Appendix strongly infuscate, 

 the three apical cells each with a brown spot 

 at tip. 



Last ventral segment bisinuate, the en- 

 closed projection large, exceeding a little the 

 lateral angles, and broadly rounded. 



Described from three females, col- 



