852 FAMILY XLII. CLKHID.K. 



1626 (5159). TRICHODES NUTTAI.LI Kirby, Trans. Linn. Soc. Lond., XII, 

 1818, 394. 



Elongate, subcylindrical. Head, thorax, legs and under 

 surface dark blue, sometimes purplish or greenish-blue ; ely- 

 tra blackish-blue, with basal, median and subapical cross- 

 bars, interrupted at suture, and also with the margin from 

 humerus to middle, reddish-yellow, the humeral umboneblue. 

 Thorax bell-shaped, coarsely, sparsely and shallowly punc- 

 tate. Elytra coarsely, shallowly and irregularly punctate. 

 Length 8-10.5 mm. (Fig. 333.) 



Fi Porter, Kosciusko, Elkhart and Crawford coun- 



* . 2 f ties; scarce, .lime 28- August 6. The Porter Count v 



( Original.) 



specimens were taken from blossoms of Opuntia. 



V. ENOCLERCS Gahan. 1910. (Gr.. "in + insects noxious to 



hives.") 



Eyes distinctly emarginate in front, finely granulate; maxil- 

 lary palpi slender; labial palpi dilated; tarsi apparently 4-jointed, 

 claws broadly dentate; antennal club 3-iointecl. rather abruptly en- 

 larged, conical. About 30 species of this genus are known from 

 North America, six of which have been taken in Indiana. One ad- 

 ditional species and one variety may also occur. 



KEY TO INDIANA SPECIES OF ENOCLERUS. 



. Elytra more or less broadly red at base. 



I). Median pale elytral crossbar very broad, not lunate; larger, 8-12 mm. 



c. Width of median pale crossbar less than one-fourth the length of 



elytra ; body beneath usually red. 1627. QUADRISIGNATUS. 



cc. Width of median pale crossbar about one-third the length of ely- 

 tra : iiies-o- and metasterua usually dark. 1628. ICHNEUMONEUS. 

 66. Median pale crossbar narrow, lunate on each elytron; smaller spe- 

 cies, 4-7 mm. 



d. Abdomen red. 1629. QUADRIGUTTATUS. 

 dd. Abdomen black. 



e. Shining, slender; elytral sculpture finer. 1630. NIGRIFRONS. 



re. Subopa<|iio. rather robust; elytral sculpture coarse. 



/. Disk of elytra without trace of costo?. their tips black; an- 

 tenna 1 entirely red. ANALIS. 

 ff. Disk of elytra obsoletcly costate, the tips pale; antenna 1 red, 

 club dusky. 1631. KMSMAWS. 

 mi. Elytra black at base. 



</. Elytra entirely black: abdomen black. 1t',:!2. THORACICUS. 



.'///. Elytra with pale median crossbar; abdomen red. var. RUFIVENTRIS. 



X',:27 (5165). KXOCI.ERUS QUADRIKIGNATCS Say, F.ost. Journ. Nat. Hist., I, 



1N35, 162; ibid. TT. 6:!S. 



Elongate, moderately robust, strongly convex. Head, thorax, basal 



third of elytra and under surface dull red; apical two-thirds of elytra 



