1332 FAMILY J.XII. — ANTHICID.E. 



and shorter than in tcniiiinnia. Elytra finely and very sparsely punctured. 

 Males with elytral iuipressidu smaller, more oval and more distant from 

 apex than in any of the other species. Length 4-5.5 mm. 



Vigo and Lawrence counties; scarce. May 6-July 10. Occura 

 especially on leaves of ilay-apple, PodophijUtmi peltatum L. Not 

 an immature form, as at first supposed, the sparsely punctured ely- 

 tra with wholly different impressions in males showing its specific 

 rank. 



Tribe III. MACKATRIIXI. 



This tribe is also composed of a single genus of narrow brown 

 or black pubescent species, having the head deflexed, constricted far 

 behind the eyes into a very slender neck; maxillary palpi com- 

 pressed and dilated, the last joint lar.ue and hatchet-shaped; last 

 three joints of antenna? much longer than the others; first joint of 

 hind tarsi very long; males with a sixth abdominal segment visible. 



IV. ]Macratria Newm. 1838. (Gr., "long -h three.") 

 Two of the four known species occur in Indiana. 



KEY TO I.\DIANA SPECIES OF irACE.VTBIA. 



». Pnliesceuee of upper surface very flue and dense; head rather finely 



and densely punctate. 2474. mubina. 



iia. Pubescence rather coarse and sparse ; head vi'ry minutely and sparsel^■ 



punctured. 2475. confi'sa. 



2474 (7015). Mackatria muhina Fab., Syst. Eleut., II, 1801, 01. 

 Elongate, slender, subcyliudrical. Dark olive .uray, densely clothed with 



fine, silken, yellowish hairs; antennae and le.ns dull yellow, the femora often 

 piceous. Head subtruncate behind the eyes : antenna' with sec(nid and third 

 joints nearly equal. 11th almost as long as 0th and 10th united. Thorax 

 but slightly wider than head, one-half longer than wide, base strongly mar- 

 gined, angles all rounded, disk finely and densely i)unctate. Elytra with 

 rows of fine, close-set punctures which are almost hidden liy the dense pu- 

 bescence. Length 4.5-5 nnn. 



Marion, Floyd and I^osex- counties; scarce. June 23-July 9. 

 Occurs on willow bushes and the folia.ue of water-willow along 

 streams. 



2475 (7014). Macbatria confuka Lee, Proc. Phil. Acad. Nat. Sci., \\l. 



1S55, 272. 

 More slender and darker than ■niiiiiiia. Head more rounded behind the 

 eyes. Thorax more slender, not wider than head, less n.-irrowed in front. 

 Elytral rows of punctures shallow, indistin<-t. length 4-4.5 mm. 



