1000 



FAMILY L. ■SCARAB/'EID^. 



1862 (5929). 



Fig. 417. Ant sucking at 

 glinda of Cremaslochilus. 

 (After Wheeler.) 



Cremastociiilus caxalictlatus Kirl),v. Zool. Journ., Ill, 

 151. 

 Elongate-oblong. Bhiek, feebly sliiniug. Meutum plate deeply con- 

 cave, its hind margin ^'^•idely reflexed and with a deep, wide notch. Thorax 

 one-third wider than long, sides moderately curved ; front angles obtuse, 

 feebly prominent, limited on their inner side by a deep f(ivc;i. punctured 

 and continuous witli the disk; hind angles triangular, nearly smooth, tips 

 slightly turned <jutward, limited within liy a moderately deep groove, but 

 not depressed below the surface of the disk ; disk slightly convex, coarsely 

 and densely punctured. Eljirra flattened on the disk, vaguely grooved and 

 witli rather dense, aval, shallow punctures. Length 11-12. ."i mm. 



Vigo, Pntnam, Monroe and Crawford coun- 

 ties; scarce, ilay ]0-Ma}' 17. Of the ten speci- 

 mens at hand, nine were found in ants' nests be- 

 neath logs or flat stones, all singly but two. Al- 

 though taken in six different years, they were all 

 collected between the two dates above mentioned. 

 On this and most other species there are pubes- 

 cent depressed spa<'(',s near the front angles and 

 beneath or near tlie hind ones which are sup- 

 posed to be glandular and to excrete a liquid 

 very palatable and attractive to the .ants, with 

 which they are found in company. LeConte records* several in- 

 stances in which specimens have had the projecting portions of the 

 hind angles fall off on account of the continual gnawing or sucking 

 of the ants at the glands. (Fig. 417.) The beeth-s are sluggish in- 

 sects which feign death when touched, and seem to be held in cap- 

 tivity by the ants, which pull them back into the vicinity of the 

 nests whenevei- they attempt to escape. 



1863 (51I.T1). Cee-Mastochih s castaxe.t: Knoch., Neue Beitr., 1801, 115. 



Oblong. Piceous, feebly shining. Meutum plate 

 deeply cupped, the margin widely reflexed except in 

 front, and Avith n ratjier deep T '-shaped notch behind. 

 Thorax nearly twice as wide as long, sides moderalely 

 curved ; front angles in the form of tubercles, limited 

 on tlie inner side by the usual deep fovea and behind 

 by an impressed line; hind angles triangular, punc- 

 tured at liasc, seiiarated cdjupletely from the surface 

 of the disk liy a deep imiiression, their tips turned out- 

 ward; disk moderately convex, coarsely and closely 

 punctured; median line sometimes feebly impressed. 

 Elytra moderately flat, with rather sparse, shallow, 

 oval impressions; tliose on the sides, as usual in tlie 

 otiier species, smaller, rounded and deeper. Pygidiuni 

 tured. Length n.5^10 mm. (Pig, 418.) 



*Entoill. Amor., J, 18S. 



Fig. 41S. X 3. 

 (After Wheeler.) 



■y coarsely punc- 



