852 



FAMILY XLII. CLERTDJil. 



Fig. 333. 



1626 (5159). Tkichodes nuttalli 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 umbone blue. 

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

 tate. Elytra coarsely, shallowly and irregularly punctate. 

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



Porter, Kosciusko, Elkhart and Crawford coun- 

 (OrigSd.) tie>s ' sc ' ar ce. June 28- August 6. The Porter County 

 specimens were taken from blossoms of Opuntia. 



V. Enoclerus Gahan. 1910. (Gr., "iri-s- 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; antenna! club. 3- join ted, 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. 



a. Elytra more or less broadly red at base. 



&. 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. quadeisignatus. 



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

 tra ; meso- and metasterna usually dark. 1628. ichneumoneus. 

 Median pale crossbar narrow, lunate on each ely iron ; smaller spe- 

 cies, 4-7 mm. 



d. Abdomen red. 1629. quadeiguttatus. 

 dd. Abdomen black. 



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



ee. Subopaque, rather robust ; elytral sculpture coarse. 



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

 tenna? entirely red. analis. 

 ff. Disk of elytra obsoletely co-state, the tips pale; antennre red. 

 club dusky. 1631. bosmabus. 



aa. Elytra black at base. 



g. Elytra entirely black ; abdomen black. 1632. thobacicus. 



gg. Elytra with pale median crossbar ; abdomen red. var. bufiventbis. 



1627 (5165) T Enoclerus quadeisignatus Say, Eost. Jouru. Nat. Hist., I, 

 1835, 162; ibid. II, 638. 

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

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



