496 CLASS vin. 



Tenebrio L. (in part). Penultimate joint of tarsi distinct, not 

 concealed in preceding. 



Tenebrio FABR., Upis FABR., Calcar DEJ. (species of Trogosita 

 FABR.) 



Sp. Tenebrio molitor L., PANZER Deutschl. Ins. Heft 43, Tab. 12, STURM 

 Deutschl. Fauna, Ins. n. Tab. 46, DUMERIL Cons. gen. s. I. Ins. PI. 13, 

 fig. i ; the meal-beetle; above 7'" long, black, brown beneath, elytra 

 striated. The larva (meal-worm), well-known in corn -mills, granaries, and 

 bread-bakers' establishments, is elongate, cylindrical, white, and has twelve 

 rings besides the head. 



B) Body elongate. Thorax sub-quadrate, elongate. Antennas 

 clavate or thick at the apex, fusiform. 



Toxicum LATE. Antennae with four terminal joints forming a 

 club, last sub-orbicular, rest transverse. Tibiae simple. 



Add genus Boros HERBST. 



Chiroscelis LAM., LATE. Antennas with last joint globose, 

 thick. Tibiae of anterior feet dilated, digitate. Thorax elongate, 

 posteriorly constricted, narrower than the base of elytra. 



Sp. Chiroscelis bifenestratus, LAMARCK Annal. du Museum in. 1804, p. 262, 

 263, PI. -22, fig. 2 ; GUERIN Iconogr., Ins. PI. 30, fig. 5. 



Sarrotrium ILLIG., FABE. (Orthocerus LATE.). Antennas fusi- 

 form, thick, pilose. 



Sp. Sarrotrium muticum, Hispa mutica L., PANZER Deutschl. Ins. Heft \, 

 Tab. 8, DUMERIL Cons. gen. s. I. Ins. PI. 13, fig. 5; found in sand-pits. 



Corticus DEJ. Sp. Sarrotrium celtis GERM. 



C) Body oval. Thorax transverse, trapezoidal, anteriorly nar- 

 rower, posteriorly of the breadth of elytra. 



Opatrum FABE. (exclusive of many species). Clypeus emargi- 

 nate, including labrum. Antennae shorter than thorax. Thorax 

 of the breath of elytra, marginate. 



Sp. Opatrum sabulosum FABR., Silpha sabulosa L., PANZER Deutschl. Ins. 

 Heft 3, Tab. 2, STURM Deutschl. Fauna, Ins. n. Tab. 40, Guv. R. Ani. 

 ed. ill., Ins. PI. 49, fig. 2 1 ; Opalium tibiale FABR. (MicrozoonD&S.), 

 PANZER Deutschl. Ins. Heft 43, Tab. 10. 



1 Of this species, as also of Sarrotrium muticum, SCHIODTE has communicated an 

 anatomical description in KROYER'S NatuurTc. Tidskr, IV. 1843, PP- 2O 4 7TI - 



