USED IN ENTOMOLOGY. 59 



Guest: applied to those insects that live in nests or dwelling places of other 



species, not necessarily at the expense of the host. 

 Gula: the throat: that sclerite forming the central portion of the head 



beneath, extending from the submentum to the posterior margin, and later- 

 ally bounded by the genae. 



Gular peduncle: in Colcoptcra = submental peduncle. 

 Gular suture: the line of division between the gula or throat and the gense 



or cheeks. 



Gulf strip: see semitropical or gulf strip. 

 Gullet: oesophagus; q. v. 



Gulo-mental: includes the region covered by the gula and mentum. 

 Gustatory: relating to the sense of taste. 

 Gutta: a light spot on a dark ground. 

 Guttate: with light spots or drops on a dark ground. 

 Gymnocerata: insects with freely movable, conspicuous antennae: see crypto- 



cerata. 

 Gymnogastra: Hymenoptera; species in which the venter is visible: see 



cryptogastra. 



Gymnoptera: species with membranous wings not covered with scales. 

 Gynandromorphic: when an individual of one sex exhibits on one lateral 



half the organic characters of the other, more or less completely. 

 Gyri-cerebrales: lobes of the cesophageal ganglion of the embryo, connected 



with the primary lobe : = stalked bodies. 



H 



Habena: a fascia on the thorax. 



Habit -us: the port or aspect: used to express a resemblance in general 



appearance. 

 Habitat; abbreviated Hab.: the region or place which an insect inhabits or 



where it was taken. 



Haemoglobin: the coloring matter of blood which serves to carry oxygen. 

 Haemolymph: the watery blood or lymph-like nutritive fluid of the lower 



invertebrates. 

 Hasmoxanthine : a dissolved albuminoid in the insect blood, which has both 



a respiratory and nutritive function. 

 Hair: a slender, flexible filament of equal diameter. 

 Hairy: covered or clothed with hair. 



Halophilous: species living in salt marshes, or near the sea. 

 Halterata: the Diptera. 

 Halteres: the poisers or balancers: capitate movable filaments in Diptera, 



situated one on each side of the thorax and representing rudimentary hind 



wings. 



Halteriptera: the Diptera. 



Hamate -us: furnished with hooks, or bent like a hook. 

 Hammock: the hammock-like covering of the caterpillars of certain moths. 

 Hamule: a little hook. 



