AMERICAN ENTOMOLOGY. 159 



Undulated, waved obtusely, without any right lines, but in seg- 

 ments of circles. See flex2tous. 

 Unguicidate, armed with a hook or nail. 

 Unguis, nail or claw, two incurved hooks which terminate the 



tarsus. See pulvillus. 

 Ungulate, hoof-shaped ; like a horse's hoof. 

 UrceoJate, pitcher-shaped ; swelling in the middle like a pitcher. 



See infundihuh'form, cyathi/orm. 

 Utriculus, a little bag, or hollow vesicle. 



V. 

 Vagina, every part, the oflScc of which is to cover, defend, or 

 support the tongue — it is divided into tvhus, volvse, palj>!, hra, 

 and amudus, (Kirby) ; the bivalve coriaceous sheath or cover 

 of the spicula. 

 Yaginate, (aculeus) inclosed in a bivalve sheath. 

 Vah3e, or vcdiidse, in the Hymcnoptera, are two coriaceous laminsD 

 or sheaths which surround and inclose the vagina, and which 

 support the exterior palpi ; small concave membranes inclosing 

 the proboscis ; the maxiUec. 

 'Variety, a peculiarity of color or form in an individual, not 

 proper to the species ; this difference is sometimes inherited 

 by several successive generations. 

 Variolous, with large, unequal, impressed points. 

 Veins, (venae). See nervures. 

 Velum, membranaceous appendages attached to the sj^i^nlee at 



the apex of the anterior tibia?. 

 Venter, the inferior portion of the abdomen, separated from the 



tergum by lateral sutures, and divided into segments. 

 Ventricose, distended ; bellying ; inflated. 

 Vernantia, vernatio; moulting, the shedding of the Skin or 



exuvia. 

 Verrucose, having little hard lumps or wart-like elevations upon 



the surface. See petjn'llous, apicidate. 

 Versatile, vane-like ; turning about like a vane. 

 Vertebral, of or belonging to the vertebra; generally u.sed to 

 indicate spots, lines or a different shading of color, &c., im- 

 mediately over the part corresponding with the vertebral column 

 in a vertebrate animal. 



