FAMILY ENGID.E. 69 



Eiigidio. 



The insects of this family are allied to the Nitidllid^k and DERMEsxiOiE : from the former, 

 they (liflFer hy th«Mr olongatc form and simple tarsi ; and from tlie latter, by their highly 

 jtolishcd Ixidies, anil more developed form nf their niaiuliiiles ( Westwood). 



The En(;ii).k snl)slst upun wikkI in a state of decay, or upun fungi, in some si»e<'ies of 

 wliieli many iinlivi<luals may be fonnil. I jirocureda laigi-niimlx'rof liulivlduals belonging 

 to this family. In the gelatinous saj) which was slowly ixriing from a wound in the trunk 

 of a yellow birch : they sue also li)und under the hark of trees, and never fe*tl upon living 

 or dead animal matters. 



The anatomical characters, as given for the Engid;e proper, are : Antenna short, cla- 

 vate, ten- or eleven-jointed ; maxillary palpi equalling the lobes of the maxillte ; labium 

 advanced in front of the mentum ; labnmi transverse ; mandibles bifid at the tip ; tarsi 

 in some four-jointed, in others five. 



Genus ENGIS (Latr.). 

 ' Body long ovate, subconvex ; tarsi five-jointed, the fourth joint short ; maxillae bilobed ; 

 ' club of the antennff short, broatl, Uattejied, three-jointed' ( Westwooo). 



Enhis fasciata. ( Plate xxiii, fig- 2.) 



Thorax black : elytra brick-red, traversed by a broad black belt; posterior extremity 

 black ; inner angles of the elytra black, terminating in a partial crossbar. The pro- 

 portion of black an<l red upon the elytra is nearlj' equal. 

 These insects inhabit fungi, or decaying wood under the bark of trees : they are not, 

 however, specially injurious to trees. 



Genus IPS ( Herbst). 



The body is oblong and subdepressed ; tibia broad and serrated ; tarsi five-jointed ; lobe 

 of the maxilla broad. 



Ips kasciatus. ( Plate xxiii, fig. 4.) 

 Iludy oblong, subdepressed ; thorax and head black ; elytra black, with two yellow an- 

 gular spots upon each ; legs short ; tibia br(.>ad, subscrrated ; tarsi pilose. Length 

 two-tenths of an inch. 



Ips sANGLiNoi.ENTA. ( Plate xxiii, fig. 3) 



ilead and thorax black : elytra yellow, with a single round black spot near the middle ; 

 terminal extremity black ; outer and anterior angles black. Insect shining. 



