20 EXPLANATION OF TERMS 



Bullate: blistered. 



Bullule: a small blister. 



Bursa: a pouch or sac: a wing pouch in male caddice flies and in connection 



with a stalked hair pencil. 

 Bursa copulatrix: the copulatory pouch of the female in some orders; a 



modification of the vagina. 



Caducous -us: deciduous; easily detached or shed. 



Caecal tubes or pouches: sac, or blind tube-like structures surrounding the 



chylific ventricle at its junction with the crop, and secreting a digestive 



ferment. 

 Caecum: a blind sac or tube-like structure serving as one of the caecal tubes 



or pouches : see coecum. 



Caelate: a surface with plane elevations of varying forms. 

 Cseruleus -ecus: light sky-blue [between lavender and cobalt blue]: = coe- 



ruleus. 



Caerulescent: with a tinge of sky-blue. 

 Caesius-eous: a pale dull blue-gray [blue-gray]. 

 Casspiticolous: frequenting or living in grassy pastures or lawns. 

 Calathiform: shaped like a deep bowl. 

 Calcar-ium; pi. ia: a movable spur or spine-like process: specifically the 



spines at the apex of a tibia. 



Calcarate -us: with a movable spur or spine-like process. 

 Caliciform: shaped like a cup or calyx. 

 Calipers: the anal forceps in Dermaptera. 



Calli axillary: Odonata; thickenings at the bases of the wings; distin- 

 guished as anterior at the base of the costa, and posterior at the base of 



radius + medius and cubitus : = axillary calli. 

 Callosity: a thick swollen lump, harder than its surroundings: callous : 



also a rather flattened elevation not necessarily harder than the surround- 

 ing tissue. 



Callous: see callosity. 

 Callus: a small callosity. 

 Caltrops spines: the branched and otherwise specialized irritating spines in 



Limacodid larvae. 



Calva: a skull-cap: = epicranium, q. v. 

 Calx: the distal end of the tibia; the curving basal portion of the first tarsal 



joint. 

 Calyculate: applied to antennae, whose cup-shaped joints are so arranged as 



to fit one into the other. 



Calypter: Dipt era; the alula or squama when it covers the haltere. 

 Calyptra: a hood or cap: see alula. 

 Calyptrate: those flies that have alulae or membranous scales above the 



halteres. 

 Calyx: the cap or crown of the mushroom bodies of the procerebrum: see 



also egg-calyx. 



