THE METAt.I.IC WOOD-BOKING BEETLES. 793 



KFA' TO INDIANA (ilCNEKA OF .TULODINI. 



(/. Sciilclliiiii iiulisliiicf ; side jiicccs o\' iiicliitlmrnx pMrtly visible. 



X. ACM.KODIOUA. 



nil. SciitcUum visil>l('; si.lc iiirco. nf luclatlionix covered l)y the elytra. 



XI. I'TOSIMA. 



X. Ac.M.KoDKKA Kseh. 1820. (Gr., " in full "hlonm i skin.") 



Tliis ucinis. ;is cliaraclcri/ed aliove, is represented in llie United 

 ►States l)y TO speeies. only three of which occur in the eastern United 

 States, includino' Indiana. Tlie otliei's ai-e found mostly in the 

 Southwestern and Pacific States. The two principal papers treat- 

 ing of the genus are by 



Horn.— "Rexision of the Species of Acmipodera of the United 



States." hi Trans. Amer. Ent. Soe., VII, 1878. 2-27, PI. I. 

 FdIL II. ('. — "Syno])sis of th(> Species of Aciiueodera of America 

 North of Mexico," lu Journ. N. Y. Entom. Soc. VI T. 189!). 

 1-37. 



KEY TO INDIANA SPECIES OF ACM^ODERA. 



a. Sides of thorax with au elongate yellow siiot near hind angles. 



1507. PULCHELLA. 



an. Sides of thorax without trace of yellow. 



I). Larger, 8.5-11 mm.; bluish-black, elytra with a number of small, 

 more or less connected yellow spots. 1508. oenata. 



hh. Smaller, 5-7.5 mm.; blackish-bronzed, spots smaller, distinctly sep- 

 arated and usually in two rows. 1509. tubitlus. 



1507 (4(M>). AcM^ODEBA PULCHELLA Herbst, Col. IX, 1805, 211. 



Elongate-oblong or subcyliudrical, convex. Thorax and under surface 

 bronzed, the former with an oblong yellow spot in front of hind angles; 

 elytra black with variable yellow markings, these usually a small sub-basal 

 spot, an elongate marginal spot reaching from humerus to beyond middle, 

 this with an inward prolongation near middle, and two crossbars, inter- 

 rupted at suture, on apical third. Thorax convex, nearly twice as wide as 

 long, apex and base truncate, sides narrowing from base to apex; disk with- 

 out distinct impressions, but with a small basal fovea cm each side ; surface 

 densely, evenly and rather coarsely punctured. Elytra as wide at base as 

 thorax, margin serrate; surface striate, the striaj rather finely iiuncturcd; 

 intervals flat, each with a single row of punctures, bearing short lu-owiiish 

 hairs. Length 5.5-10 mm. 



Throughout the State; frecpient. June 11— July 25. Occurs on 

 flowers, especially those of Jersey Tea, CcaJiolinis aNi(ric(int(s L. 

 The yellow s])ot on side of thoi-ax is sometimes retlnci'd to a mere 

 point aiid in one specimen at lunid is wholl\- lacking. 



