76 REPORT OF No. 19 



A third insect that comes, I think, in the same family is Homcemus 

 cenifrons, Say. It is reddish-brown in colour, clouded with darker brown; 

 and it has a peculiar mark, like an elongated cone rising from the end of 

 the abdomen towards the middle of the back. These creatures frequent the 

 heads of grass. 



Acanthosoma cruciata, Say, is an interesting species in the P entatomidce . 

 In colour it is ochreous with brown markings, and it has the appearance 

 of having been oiled and varnished. Its back is marked with a floriated 

 cross. When the wings are spread the abdomen on the upper surface is 

 seen to be tinged with vermillion. 



But the finest of our species of P entatomidce is undoubtedly Pentatoma 

 ligata, Say. It may readily be known. It is a robust insect, of a rich 

 Brunswick green, bordered with orange red; and it has an orange spot on 

 its back. The insect is somewhat rare at Quebec. 



In the family Coreidce, to which the common Squash-bug, A7iasa tristis, 

 De G., belongs, we have Alydus eurinus, Say — a dingy insect, long and nar- 

 row with lighter coloured wings. 



Fig. 24.— Assassin Bug. Fig. 23.— PodisusTplacidus. Fig. 25.-Acholla spinosa. 



In the Lygmidce we have the pretty bug LygcEus turcicus, Fabr. This 

 insect is a long oval in shape, black, with a red band across the shoulders, 

 and a red St. Andrew's Cross upon the back. The underside of the abdomen 

 is lurid red. 



Among the bugs injurious to plants may be reckoned Pecilocapsus linea- 

 tus, Fab., (4-vittatus, Say), a pretty yellow bug, with black lines on the 

 wings, and two very conspicuous black spots on the thorax. These insects 

 do injury to the leaves of currant bushes and garden plants; and they also 

 taint the small fruits. They and the next mentioned insect belong to the 

 Capsidce. 



Capsus lineolaris, Beauv., the Tarnished Plant-bug is ochreous with 

 fuscous shades. It has dark spots along the edge of the abdomen. These 

 insects danaage the leaves of pear trees, apple trees, etc. 



The Tingitidce are a remarkable family of bugs. The species are very 

 small and very elegant. Seen under a microscope, they appear to be covered 

 with lace-work. On account of this, they have been called "Lace Bugs." 

 The common species is Corythuca arcuata, Say. I have found a beautiful 

 species on the Island of Orleans that I have not yet identified. The insects 

 are found on the underside of Alder leaves. 



The "Flat Bugs" or Aradidcc are found under bark, and in crevices of 

 trees. They are predaceous. In vol. XXXY. of the Canadian Entomologist, 

 I have given a full description of a new species that I have taken at Que- 

 bec, and have named Aradus luteolns. 



