(Pa^e 231) 

 feebly depressed at base. Antennae filiform, not thickened dis- 

 tally: 1. Subgenus Thinonoma Thorns.- Dull black. L. P..5-3 mm. 

 1. T. atra >ravh. 



3. Antennae rather short, scarcely longer than head and pronotum to- 



gether, their third joint shorter than the second. L. 3 mm.. 



4. T. scitul a Er. 



Antennae distinctly longer than head and pronotum together, their 

 third joint as long as the second 4. 



4. Black, forebody with steel blue reflection. L. 3.5-4 mm 



2. T. leucopus Marsh. 



Pitch-black, forebody with metallic reflection. L.;3..5.mm 



3. T. umbratica Sr. 



(Page 232) 



5. Abdominal third free dorsal joint shorter than the two following 



joints together. The legs pitch-Lrown or reddish-brown with 



reddish-yellow tarsi. L. 2.5-3 ram 5. T. coarctata Sr. 



Abdominal third free dorsal joint as long as the following two joints 



together. Legs entirely reddish-yellow. L. 3 mm. :6. T« constricta Er. 



1. Subgenus Thinonoma Thorns. 



1. T. atra CJravh. 



(Jravh. Micr. 162; Erichs. Kaf. P.Tk. Br. I, 309; Gten. Spec. Staph. 73} 

 Kraatz Ins. D. II, 155; Thorns. Skand. Col. Ill, 6; Muls. et Rey Brevip. 

 1875, 360; :Janglb. Kaf. M. II, 244). 



Easily identified by the color and by very slender, fine antennae, 



also by the posteriorly distinctly tapering abdomen. 



-3S4- 



