THE ANT-LOVINO BE}CTLKS. 'i'V^' 



OUT (1000). Tbijiiomelba bibia Lee. Host. .Jouni. X;it. Hist, VI, 1841), 1()S. 

 Dull brownish-yellow, shining, very finely imbescent. Head slightly 

 wider than long, finely but distinctly punctate. Antennfe reaching middle 

 of thorax, joints :; to s bead-like, very small, ninth and tenth wider but not 

 longer, eleventh very large, ovate-conical. Thorax as wide as long, widest 

 just in front of middle, disk with a deep transverse sulcus at base, connect- 

 ing a small fovea each side. Elytra each with two basal foveas, the discal 

 line reaching middle. I^ength .8 mm. (Fig. 152. c.) 



Putnam Countv; rare. April '22. 



XIX. Mki,ba ('as;'.v. 1897. (A name.) 



Head smaller; last antennal joint large, cone-shaped; occiput in 

 our species with a median impression; first dorsal not elongate; 

 second ventral shorter than the next two. Males with front and 

 middle femora mni'h swollen. Three spe:ies perhaps occur in the 

 State. 



KEY TO INDIAlN'A SPECIES OE MELBA. 



(I. Diincal striie of elytra sliort. 



6. Thora.x: not punctured, as wide as head. 028. pabvula. 



hh. Thorax finely and distinctly punctured, wider than head. 



THOEACR'A. 



(Id. Disciil strige half the length of each elytrcm. 629. ma.ta. 



(i2s (1900). JIelba paevula Lee., Bost. Journ. Nat. Hist, VI, 1849, 108. 



Briiwnish-yellow, shining, finely pubescent. Head one-fifth wider than 

 long, smooth, frontal margui slightly curved ; occipital foveas deep. An- 

 tenme as in T. diihia. the last joint larger. Thorax subglobose, narrower at 

 base ; disk with a deep transverse basal groove which is angulate at middle 

 and unites with a small f(jvea each side. Elytra strongly convex, the discal 

 i,T(jove limited t(] basal fourth. Length 1 mm. (Fig. 152, d.) 



Starke and Monroe counties; rarf. ^lay 8-May 18. 



M. thoracicu Brend., dull yellow, pubescence fine, abundant, 

 length .9 mm., was described from Illinois and Iowa, and is said to 

 occur on moist, rotten wood, with ants, and to be abundant in June. 



020 ( ). :\IEEBA 1MA.JA Brend., Trans. Amer. Ent Soc, XIX. 1892, 167. 



Differs from parviila in the longer discal stria of elytra and in having 

 the sutural stria i)unetured on the outer side. Length 1.1 mm. 



Putnam County ; rare. jVpril 17. 



Triiiiioplccfv!' obtohiiLs Brend., yellow, pubescence fi.ne and 

 spar.se. length 1.2 mm., was described from Iowa and may occur in 

 Northern Indiana. 



