TITK SIlnllT-WIXOK]) SCAVENGEE 1!K KTI.KS. 



417 



iin. Antennre shorter than head; length less than 2 nun.; basal 

 joint of hind tarsi equal in length to the next two together; 

 third joint of maxillary palpi more or less hatchet-shaped, 

 the fourth very minute; fifth ventral not elongated, wider 

 than long. LV. LEPTOGENIUS. 



(/(/. Fourth joint of hind tarsi bilohed. 



I). Last joint of maxillary palpi obtuse and pubescent; reddish-yellow, 

 elytra dark blue, head and tip of abdomen black. LVI. PJEDERUS. 

 pp. Last joint of maxillary palpi slender, very minute. 



q. Thorax oval, usually longer than wide; elytra usually longer than 



thorax; form linear; neck moderately narrow; length not over 



5 mm. LVII. SUNIXTS. 



i/<l. Thorax almost circular, distinctly longer than elytra ; neck very 



slender; color uniform pale yellow; length less than .'{ mm. 



LVIII. STILICOPSIS. 



XLIII. CRYPTOBIUM Mann. 1880. (Gr., "hidden + life.") 



Rather large, elongate, parallel species having the gular sutures 

 separated ; elytra with a fold or raised line near the side margin, ex- 

 tending from the humeri to the outer spical angle ; neck distinctly 

 and abruptly constricted above ; basal joint of antennas greatly 

 elongated ; front tarsi not dilated. The males always have a fold 

 at the middle of the second, and a pit or fovea on the third ventral 

 segment, and the last ventral is unmodified. In some of the species 

 the males are of two forms; one 

 having, in addition to the fold 

 and fovea, the third segment 

 prolonged backward in a lobe 

 which varies much in length. 

 (Fig. 162.) Casey has created a 

 new name, " Gastrolobiuvn," for 



fflCH 



the species possessing the Char- Fig. 102. C. badium: 1, complete male; 2, imperfect 



, T i male; 3, female. (After Horn.) 



acters above mentioned, but 1 



have retained the older and belter known name. The following 



species have been taken or probably occur in the State: 



KEY TO INDIANA SPKCIKS OF CRYPTOBIUM. 



it. SiH-ond ventral of female with a pit or short transverse fovea near its 



middle. (Fig. 1<>2, No. 3.) 



h. Abdomen uniform dark brown or piceous; third joint o.f antenn:e dis- 

 tinctly longer than second; length 10 12 mm. sol. BADIUM. 



lil>. Abdomen bicolored, piceous, with the last two segments pale reddish- 

 brown; length 8-10 nun. 802. BICOLOR. 



mi. Second ventral of female simple, without pit or fovea. 

 <: Abdomen bicolored, the last two segments paler. 

 (/. Head and meso- and meta sterna pale reddish-brown. TEXANUM. 



