USED IN ENTOMOLOGY. 107 



Post- vertical cephalic bristles: in Diptera, are in the middle of upper part 



of occiput. 



Pouch: in Trielwptcra, a depressed, usually longitudinal area in a wing. 

 Pras- or Pre-: anterior to; before. 

 Praebrachial: a longitudinal vein in middle of an Ephemerid wing; usually 



forked : no. 6 of some systems. 



Prascostal spur: a false vein in costal angle at base of secondaries. 

 Prae-dorsum: =prophragma; q. v. 

 Prse-labrum: in Diptera, clypeus; q. v. 

 Praeocular: before the eyes. 

 Prasputium: the external membranous covering of penis: specifically a 



spherical muscular mass at base of penis in some Orthoptera. 

 Prae-scutellum: a sclerite, rarely present, between the meso-scutum and 



meso-scutellum. 

 Prae-scutum : the first of the four divisions of the notum of the thoracic 



rings. 



Prae-subterminal: preceding the s. t. line in Lcpidoptcra. 

 Pras-terga: the anterior thoracic scutes in coleopterous larvae. 

 Praa-tornal: preceding the tornus (q. v.) in Lcpidoptcra. 

 Prasinus: grass-green [apple green]. 



Pratinicolous: frequenting or living in grassy meadows or bogs. 

 Pre-alar callus: a small swelling or projection before the root of wings, 



just back of outer ends of transverse suture, in Diptera. 

 Pre-anal: above or before the anal opening. 

 Pre-anal plate or lamina: supra-anal plate; q. v. 

 Pre-antennal: anterior to or before the antenna. 

 Pre-apical: before the apex. 

 Pre-balancer: = pre-halter ; q. v. 

 Pre-basilar: before the base. 

 Precocious stages: generally applied to all stages of development from the 



fertilized egg to the pupa. 



Precurrent: continuous; entire; complete; said of a vein. 

 Predaceous: applied to insects that live by preying upon other organisms. 

 Predatory: = predaceous ; q. v. 

 Pre-eruciform: before the caterpillar stage: specifically applied to the early 



larvae of some Proctytrypida. 

 Preformation: the doctrine of growth or development from already existing 



rudiments ; opposed to epigenesis ; q. v. 

 Pre-furca: "the stem vein in front of a fork, that reaches back to where 



itself forks from another vein " ; Diptera. 



Pregenicular: in Orthoptera, that portion of femur proximad the knee. 

 Pregenicular annulus: a more or less conspicuous color ring on the caudal 



femora proximad the knee in Orthoptera. 



Pre-halter: a membranous scale in front of the true haltere of a fly. 

 Prehension: structures fitted for grasping or holding. 

 Pre-mandibular: situated in front of the mandible: applied to a temporary 



segment of the embryo : = intercalary segment. 

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