200 BULLETIN 66, UNITED STATES NATIONAL MUSEUM. 



Philotropic. — Refers to flower-loving insects. 



Podal analogue. — See Analogue. 



Podex. — The term used by Kirby for the tenth abdominal segment. 



Polytropic. — Refers to indiscriminate flower- visitors. 



Postlumbium. — A narrow transverse band behind the scutellum of the male (=£cu- 



tellum Audouin). 

 Postscutellum. — The terminal portion of the metanotum (=Proscutellum Saunders). 

 Prsescutum — The anterior segment of the metanotum (=Scutellum Saunders). 

 Prepupa.=A true pupal stage formed immediately within the puparium. 

 Proscutellum. — Used by Saunders for Postscutellum. 

 Pseudelytra. — The appendages corresponding to the elytra of beetles. 

 Pseudopupa. — See Coarctate larva. 

 Pulvilliform tarsi. — Tarsi having each joint padded with a bladder-like pulvillus 



beneath. 

 Pupa. — The true stage of preparation for maturity; typical only in male Strepsiptera 



where it is found incased by uncast larval skins. See Prepupa and Second pupa, 



the two pupal instars. 

 Puparium. — The incasement formed by the last unshed larval skins, which contains 



the male pupal instars. The empty puparium is the Exuvium. The head cap 



is the Cephalotheca. 



R. 



Race. — Conspecific insects of a particular strain, lineage, or progeny — a colony among 



social insects. 

 Rhipidopterous. — A term referring to the Strepsiptera. 

 Rhipipter, rhipipteran, rhipipterous . — Terms referring to the Strepsiptera. 

 Rudimentary. — Referring to organs newly appearing in a group and as yet undeveloped, 



or to the imaginal buds, or to organs which have reverted to a more primitive 



form. 



S. 



Scapular. — A very small piece in front of the wing. 



Scarabseidoid larva.— The third instar of hypermetamorphic insects of the meloid 



type; considered as the middle stage of the second larva; characterized by the 



resemblance to scarabseid larva;. 

 Scutellum. — 1. The second segment of the metanotum, immediately behind the 



prsescutum (=Scutum Audouin, Interlumbium Saunders). 2. This term was used 



for Prsescutum by Saunders, for Postlumbium by Audouin, and for Postscutellum 



by Kirby. 

 Scutum. — The pleural segment at each side of the prsescutum (=Epimeron Audouin). 



See Lumbi. The term Scutum was used by Audouin for Scutellum. 

 Second larva. — The period of parasitism preceding the pseudopupa in hypermeta- 

 morphic larvse of the meloid type; comprises the carabidoid, scarabseidoid, and 



ultimate stages or the second to fourth instars. 

 Second pupa. — The second true pupal stage, formed within the prepupa. 

 Spermophagous. — Refers to seed-eating insects. 

 Spiracles. — In the female these are the prominent eye-like projections at the back of 



the cephalothorax. See Mesostigmatal lobe. 

 Strepsipter, strepsipteran, strepsipteral, strepsipterous. — Referring to the Strepsiptera. 

 Style. — The term used by Kirby for the (Edeagus; he supposed that all the winged 



specimens he had seen were females. 

 Stylopization. — The parasitism of an insect by a strepsipteran. 

 Stylops, stylopized, stylopid. — Referring to the Strepsiptera. 

 Subcesophageal ganglion. — See Thoracic ganglion. 

 Supracesophageal ganglion. — See Cephalic ganglion. 



