ORISMOLOGY. 341 



from the dorsolum by a suture. Ex. Coleoptera, 

 Sec. PLATE VIII. FIG. 3. //. 



3. SCUTELLATE (Insectum scutellatum). An insect hav- 



ing a visible scutellum. Ex. Melolontha. 



a. REJECTED (Rejectum). When, though visible, it 



does not intervene between the elytra at their base. 

 Ex. Passalus. 



b. RECEIVED (Reccptum}. When it intervenes between 



the elytra at their base. Ex. Most scutellate Co- 

 leopterd. 



4. EXSCUTELLATE (Insectum exscutellatum). When an 



insect has no visible scutellum, it being wholly co- 

 vered by the Prothorax. Ex. Copris. 



5. ASCENDING (Ascendens). When it curves upwards 



from the dorsolum. Ex. Sagra. 



6. TABULAR (Tabulare). When it is elevated on a 



footstalk above the dorsolum, and forms a tabular 

 or flat surface. Ex. Elater. 



7. OBUMBRANT (Obumbrans). When it overhangs the 



metathorax. Ex. Mmca. PLATE IX. FIG. 19. V. 



. BASE-COVERS 



1. CON CHI FORM (Conchiformes). When they are a 



semicircular concavo-convex scale something re- 

 sembling the valve of a bivalve shell. Ex. Hy- 

 menoptera. PLATE IX. FIG. 11, 12. g". 



2. LACINIFORM (Laciniformes). When they are. long, 



of an irregular shape, and appear like lappets on 

 each side of the trunk. Ex. Lithosia, &c. PLATE 

 IX. FIG. 5. a 



a In many moths, particularly Spilosoma ocularia, and affinities, the 

 insect looks as if its neck was ornamented with a beautiful tippet 

 formed by the Palagia, and its shoulders by these lappets. 



