THE TERMS USED IN EN'TOMOLOGY. 353 



PuNCTUM, a small dot of a different colour from the rest of the wing. 

 Callosum, an elevated and somewhat rigid point. 

 Geminum, two spots near each other hut separated. 

 Hamosum, divided into distant parts. 



Ocellare, an orbicular spot of a different colour in the middle. 

 Sesquialterum, formed of two spots that are distinct but contiguous. 

 Reniformis, kidney-shaped, nearly round, hollowed on one side. 

 RivuLus, astri[)e running irregularly over the wing, and of a different 



colour from it. 

 ROSTRUM, the mouth lengthened out into a snout or tapering beak; 

 this part is subject to great variations, and in the Curadionida, ^r. 

 is essential in the generic character. 

 Acutum, the apex forming an acute angle. 

 Apex, the point. 



Arcuatuin, bent like a circular arch. 

 Basis, the part next tlie head. 

 Bivalve, consisting of two concave valves, united so as to form a 



tube. 

 Breve, shorter than the head. 



Cannliculatum, with a deep hollow groove in the middle. 

 Conicum, cylindrical, growing smaller at the apex. 

 Cylmdricum, linear and round. 



Geniculatnm, bent, and making an angle at the flexure. 

 Injlexum, not projecting, but bent towards the breast. 

 Longius, longer than tlie head and thorax. 

 Loiigum, longer than the head. 

 Longissimum, longer than the body. 



Multivalvc, forming a tube by means of many valves uniting. 

 Nutans, transversely fixed to the head. 

 Pivrecfuin, prominent and elongated. 

 Rectum, produced but not bent. 



Setaceum, slender, flexible, and gradually tapering towards the apex, 

 Tuhidosum, perforated like a tube; entire. 

 RuGosus, with waved and elevated lines, either longitudinally or trans- 

 versely. 

 Saltatorii, such insects that have their legs with thick thighs strong 



and formed for leaping. 

 SCUTELLUM. — This partis separated from the thorax by a transverse 

 line, and lies between the wings or wing-cases ; its form is gene- 

 rally triangular. 

 Seta, a fine hair or bristle. 

 Sexes of Insects, are distinguished in Entomological works, by ^ {Mars) 



for male, and 5 ( Venus) female. 

 Sinus, a hollow, an excavation as if scooped out. 



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