31 4? ORISMOLOOY. 



nor abdomen are separated by any incisure or su- 

 ture. Ex. Many Acari L., Phalangium, &c. 



5. MULTISECT (Multisectuni). When an insect appears 



to have no distinct trunk and abdomen, but is di- 

 vided into numerous segments. Ex. Scolopendra; 

 lulus, &c. PLATE V. FIG. 6. 



6. CYMBIFORM (Cymbiforme). When the margin of 



the thorax and elytra are recurved so as to give 

 a body the resemblance of the inside of a boat. 

 Ex. Helens, Cossyphus. 



II. HEAD (CAPUT}. 

 i. DIRECTION. 



1. PROMINENT (Prominent). When the head is in the 



horizontaHine, and forms no angle with the trunk. 

 Ex. Carabus. PLATE I. FIG. 1. 



2. PORRECTED (Porrectum}. When the head is- pro- 



minent and elongate. Ex. Cychrus. 



3. NUTANT (Nutans). When the head forms down- 



wards an obtuse angle with the horizontal line, or 

 trunk. Ex. Harpalus. 



4. CERNUOUS (Cernuian). When the head forms down- 



wards a right angle with the trunk. Ex. Most 

 Gryllina and Locustina. 



5. INFLEXED (Inflexum}. When the head forms in- 



wards an acute angle with the trunk. Ex. Blatta. 

 PLATE II. FIG. 3. 



6. TURRETED (Turritum). When the head is pro- 



ducted into a kind of columnar recurved turret or 

 rostrum, in the sides of which, towards the end, 

 the eyes are fixed. Ex. Tnwalis. 



