THE LONG-HORNED WOOD-BORIXG BEETLES. 



Mm 



1945 (6292). Typocekus velutixus Oliv., Ent, IV. 1795. 73. 



Elongate, robust, strongly tapering behind the middle. Head, thorax 

 and antennae black : under surface usually black, the ventral segments red- 

 dish-brown, often blackish at base. Elytra rather finely and evenly punc- 

 tured, each puncture bearing a prostrate yellow hair ; tips subobliquely trun- 

 cate, each with two short spines. Length 10-14 mm. 



Throughout the State; frequent. June 2-July 21. Occurs on 

 flowers, especially those of wild hydrangea and Jersey Tea. By 

 the elimination of the yellow crossbars the elytra are sometimes 

 almost or wholly reddish-brown. 



1946 (6293). Typocekus lugtjbeis Say, Journ. Phil. Acad. Nat. ScL, III. 



1824. 419 ; ibid. II. 198. 



Elongate, rather slender, tapering behind. Uniform deep black ; elytra 

 very rarely with a reddish spot near humerus. Upper surface with pros- 

 trate black hairs: under surface with yellowish ones. Tips of elytra sub- 

 emarginate. the outer angle acute. Length 9-11 mm. 



Crawford and Posey counties: scarce. June 25-July 7. Oc- 

 curs with the preceding. 



1947 (6296). Typocerus sintejatus Xewm.. Entomologist, 1841. 70. 

 Elongate, rather slender, tapering behind. Black with rather dense 



yellowish pubescence; elytra with yellow bands, the three basal ones fre- 

 quently connected near suture, tips black. Thorax convex, suddenly nar- 

 rowed in front, sides strongly rounded. Tips of elytra subtruncate. not 

 spined. Length 10-13 mm. 



Two specimens in Dury collection from northern Indiana. 

 Should occur throughout the State. The bands of the elytra are 

 sometimes reduced to spots near the margins. 



XL VII. Leptura Linn. 1758. (Gr., " slender.") 



A genus of large size containing about 70 known North Ameri- 

 can species. It is separated from Typocerus only by the absence 

 of poriferous impressed spaces on the antenna?. Sixteen species 

 have been taken in the State, while six others perhaps occur. For 

 convenience, the species, whose range is such as to include Indiana, 

 are arranged in three groups. 



KEY TO GROUPS OF INDIANA LEPTURA. 



a. Thorax more or less triangular, or bell-shaped, widest at base. 



&. Hind angles of thorax prolonged. Group A. 



65. Hind angles not prolonged. Group B. 



aa. Thorax nearly quadrate, more or less rounded or sub-bell-shaped, usual- 

 ly constricted in front and behind, hind angles not prolonged. 



Group C. 



