ABBREVIATIONS USED ON THE FIGURES 



Aclp, anteclypeus. 



Ant, antenna. 



AntF, antennal foramen of cranium. 



AntNv, antennal nerve. 



AT, anterior tentorial arm. 



at, anterior tentorial pit. 



Br, brain. 



Cb, cibarium. 



cbmcls, cibarial muscles (same as 

 dlcb). 



CbP, cibarial pump. 



CL, cleavage line ("epicranial su- 

 ture"). 



Clp, clypeus. 



dp, median part of clypeus between 

 arms of cleavage line. 



cprclp, compressor muscles of clypeus 

 (dilators of cibarium). 



cprlm, compressor muscle of labrum. 



cvpls, cervical plates. 



Cvx, neck, cervix. 



Cxi, prothoracic coxa. 



D, deutocerebrum. 



dlcb, dilator muscles of cibarium, pri- 

 marily compressors of clypeus. 



dlphy, dilator muscles of pharynx. 



dt, attachment point of dorsal arm of 

 tentorium on cranium. 



E, cornea of compound eye. 

 ER, epistomal ridge. 



es, epistomal sulcus. 

 *, lateral parts of incomplete epis- 

 tomal sulcus. 

 ;", median part of epistomal sulcus. 



es' 



es 



fin, food meatus. 



FR, frontal ridge. 



Fr, f rons. 



fr, median part of frons between arms 



of cleavage line. 

 frapt, frontal apotome. 

 jrcapt, frontoclypeal apotome. 



FrClp, frontoclypeal region of head. 

 FrCon, brain connective of frontal 



ganglion. 

 FrGng, frontal ganglion. 



Gyigl, first postoral ganglion of ven- 

 tral nerve cord, becomes tritocere- 

 bral lobe of brain. 



Gngll, III, IV, second, third, and 

 fourth ganglia of ventral nerve 

 cord. 



gr, groove of cranial wall. 



hphmcl, frontal muscle of hypopha- 



rynx. 

 Hphy, hypopharynx. 

 HS, hypopharyngeal suspensorium. 

 Hst, hypostoma. 



I-IV, postoral somites. 



Lb, labium. 

 Ibmcl, labial muscle. 

 Ibrmcl, labral muscle. 

 IbrNv, labral nerve. 

 Lm, labrum. 



mcbmcl, median cibarial muscle. 



mcR, midcranial ridge. 



mcs, midcranial sulcus. 



Md, mandible. 



mdmcl, mandibular muscle. 



Mth, mouth. 



Mx, maxilla. 



Ni, pronotum. 



OcR, ocular ridge. 

 Oe, oesophagus. 

 OpL, optic lobe of brain. 

 OT, organ of Tomosvary. 



P, protocerebrum. 



Pclp, postclypeus. 



phmcls, pharyngeal muscles. 



Phy, pharynx. 



Prtl, parietal area of cranium. 



47 



