93 Hem 



the head in advanced embryo. (Strongylosoma) 

 Metschnikoff. These structures vary in 

 situation and shape according to the insect. 

 (M.E. hacchen, -\- Swed. hacka, to hatch ; and 

 L. spina.) 



Haustellate. — Pertaining to the haustelhim ; 

 suctorial. (L. haustum, to draw up.) 



Haustellum. — A suctorial moutb, including the 

 valvula, cultelli and scapella. (L. haustum, to 

 drink, swallow, etc.) 



" Heart."- — -A straight chambered tube running 

 along the middle line of the thorax and ab- 

 domen under the chitinous covering. (A.S. 

 hoerte.) 



Heels. — 'The term Leach uses for the spinulae. 

 (A.S. hela.) 



Hemelytra. — The upper organs of flight, when they 

 are corneous or coriaceous at the base, and 

 membranous at the apex. (Gr. hemi, half, and 

 and elytron, from dyo, to wrap up.) 



Hemi. — A Greek prefix, signifying half. 



Hemimetabolous. — The term given to insects 

 which undergo an incomplete metamorphosis. 

 (Gr. hemi, and metahole, change.) 



Hemiptera. — An order or group of hexapoda. An 

 order of insects with four wings, the upper being 

 partly coriacious, and partly membraneous. 

 (Gr. hemi, half, and pteron, a wing.) 



Hemisphserieum. — Hemispherical. (Gr. hemi, and 

 sphaira, a ball.) See Semiglobosum. 



