1294 



FAMILY LVIII. MELANDRYIDzE. 



2391 (7683). Hallomenus scapularis Melsh.. Proc. Phil. Acad. Nat Sci 



III, 1846, 57. 



Oblong-ovate, subcortex. Color given in key; sparsely pubescent with 

 yellowish hairs. Thorax one-half wider than long ; sides parallel on basal 

 third, thence rounded to apex; surface finely and densely granulate-punc- 

 tate, with a deep impression each side near base. Elytra more sparsely and 

 less roughly punctate than thorax. Length 4.5-5 mm. 



Marshall, Wells and Vigo counties; scarce. May 19-October 23. 

 Occurs on fungi, especially Pohjporus sulphureus Ft. 



2392 (7686). Hallomenus debilis Lee, New Sp. N. Am. Col.. I. 1866. 152. 

 Oblong. Dull brownish-yellow, pubescence paler. Antennas stout, slightly 



longer than the head and thorax, third joint much longer than the second 

 and fourth together : the joints more closely united than in scapularis. Tho- 

 rax and elytra more densely punctate than there, the basal impressions of 

 the former smaller. Length 3 mm. 



Putnam County ; rare. August 12. Occurs beneath logs and on 

 fungi. 



IX. Orchesia Lat. 1807. (Gr.. " a dancer.") 



Small elongate, convex species having the spurs of the middle 

 and hind tibia? finely pectinate on their inner or lower edge. Our 

 species are chestnut-brown in color and have the eyes rather close 

 together on the front. Two of the three species have been taken in 

 the State. When uncovered they leap and tumble in grotesc{ue fash- 

 ion in their endeavors to escape. 



KEY TO INDIANA SPECIES OF ORCHESIA. 



a. Presternum between the coxa? very narrow and acute at apex. 



2393. CASTANEA. 



aa. rrosternum between the coxa? broader and parallel, the apex obtuse. 



2394. GRACILIS. 



2393 (7687). Orchesia castanea Melsh.. Proc. Phil. Acad. Nat. Sci., II L 



1846, 57. 



Elongate, convex. LTniform dark chestnut brown; antenna? and legs 

 slightly paler ; pubescence silky brown. Thorax one-third wider than long, 

 rather coarsely and densely punctured near the base, more finely in front, 

 the basal impressions evident but shallow. Elytra punctured like the tho- 

 rax. Length 4-5 mm. 



Southern half of State ; frequent. May 4-November 9. Occurs 

 beneath chunks and in woody fungi. 



2394 (7688). Orchesia gracilis Melsh., Proc. Phil. Acad. Nat. Sci.. III. 



1846, 57. 



More slender than castanea and more narrowed behind the middle. 

 Punctures of thorax and elytra more coarse and rugose, the basal impres- 

 sions of former very vague. Length 3.5-4 mm. 



