8 EXPLANATION OF TERMS 



Annulate: ringed or marked with colored bands. 



Annulet: a small or narrow ring or annulus. 



Annuliform: in the form of rings or segments. 



Annulus: a ring encircling a joint, segment, spot or mark; sometimes applied 

 to the inner ring encircling the mouth opening. 



Annulus antennalis: the ring sclerite of the head into which the basal seg- 

 ment of the antenna is inserted ; = antennal sclerite. 



Anomalous: unusual; departing widely from the usual type. 



Anoplura: wingless species without metamorphosis, habits epizootic, thoracic 

 segments similarly developed : a composite aggregation which includes both 

 the biting and sucking lice. 



Ante: before; used as a prefix. 



Ante-alar sinus: Odonata; a grooved area extending transversely immedi- 

 ately in front of the base of each front wing. 



Ante-apical: just before the apex. 



Ante-clypeus: Odonata; the lower of the two divisions of the clypeus ; the 

 inferior half of the clypeus whenever there is any apparent line of demar- 

 cation : = clypeus-anterior ; inf ra-clypeus ; rhinarium ; second clypeus. 



Ante-coxal piece: Colcoptcra; that portion of the metasternum lying in front 

 of the posterior coxae, often passing between them and meeting the ab- 

 domen : of mandible, is the lateral sclerite of the clypeus ; one on each side. 



Ante-cubital: see ante-nodal, cross veins and spaces. 



Ante-furca: an internal forked process from the prosternum, to which mus- 

 cles are attached. 



Ante-humeral: relating to the space just before origin of wings. 



Ante-humeral stripe: Odonata; a discolored stripe, approximately parallel 

 to, but to the inner side of the humeral suture, q. v. 



Antemedial line: =t. a. line, q. v. 



Antemedian: Diptcra; applied to leg-bristles situated before the middle. 



Antenna -ae: two jointed, sensory organs, borne, one on each side of the 

 head, commonly termed horns or feelers. 



Antenna-cleaner: a fringed excavation on the interior base of the 1st seg- 

 ment of the anterior tarsi of Hymenoptera which, when covered by the 

 movable process from the end of the tibia, forms an opening through which 

 the antenna may be drawn : similar structures are on the fore tibiae of Cara- 

 bid beetles : tarsal claws are also used by various insects to clean antennae. 



Antennal appendage: in Mallophaga, a projecting process of the 1st or 3d 

 segment in the male. 



Antennal formula: in Coccidcc; made by enumerating the antennal joints in 

 the order of their length, beginning with the longest and bracketing to- 

 gether those of the same length. 



Antennal fossa -SB: grooves or cavities in which antennae are located or con- 

 cealed : = a. grooves ; antennary fossa. 



Antennal fovea: Diptcra; a groove or grooves in the middle of the face as 

 though for the lodgment of the antenna ; bounded on the sides by the facial 

 ridges. 



Antennal foveolae: Orthopt-cra; the pits between frontal costa and lateral 

 carinae, in which the antennae are inserted. 



