LIST OF DrPTERA. b9 



Chrysochlora castanea, Macq. Dipt. Exot. i. 1, 198, 2, pi. 25, f. 1. 



Guiana. 



a — d. Para. From Mr. Bates' colllection. 



9. ACROCHJETA LONGISETA. 



Fcem. Flava ; antennce lutece, flagello sat brevi, arista longa ; 

 thorax vittis tribus maculisque utrinque duabus tateralibus 

 nigris ; abdomen lutescens, fasciis dimidioque apicali fuscis ; 

 pedes lutescentes, anticiflavi; alee subcinerece, ad costam ful- 

 vescentes, maculis duabus una costali altera subapicali fuscis. 



Yellow. Antennae luteous ; flagellum much shorter than that 

 of A. castanea; arista longer. Thorax with three black stripes and 

 with two black spots on each side. Abdomen brown ; bands towards 

 the base and under side pale luteous. Legs pale luteous; fore legs 

 yellow. Wings slightly grayish ; anterior half tawny, with a brown 

 spot by the middle of the costa, and another near the tip. Length 

 of the body 4 — 4^ lines; of the wings 10—12 lines. 



a — c. Para. From Mr. Bates' collection. 



10. ACROCH^TA BREVISETA. 



Fcem. Testacea ; antenna fulvce, apice nigrce, flagello elongato t 

 arista brevi ; thorax vittis tribus et scutellum fascia nigris y 

 abdomen fulvum ; pedes testacei ; alee subcinerece, apud discum 

 sublimpidce, costce dimidio basali fulvescente, macula media 

 costali fusca. 



Testaceous. Antennae tawny; flagellum as long as that of A. 

 castanea and less tapering ; arista not half the length. Thorax with 

 three black stripes, the side pair interrupted. Scutellum with a 

 black band. Abdomen tawny. Legs testaceous. Wings grayish, 

 nearly limpid in the disk, tawny along the costa, especially towards 

 the base, with a brown spot between the costa and the discal areolet, 

 which is a little shorter than that of A. longiseta and much shorter 

 than that of A. castanea. Length of the body 4 lines ; of the wings 

 10 lines. 



a, b. Para. From Mr. Bates' collection. 



