200 MKSOZOIC INSECTS OF QUEENSLAND, i. 



Panorpids, and discovered that the frenulum is present in all forms 

 examined by me, though only vestigial in the highly specialised 

 BiUacidfP. Hence it is clear that the ancestors of the Mecoptera 

 must have possessed the wing-coupling apparatus in a well- 

 developed form; so that its inclusion in the restoration of the 

 wing of A rchipanorpa (P]site ix.; jl, jugal lobe: jp, jugal process; 

 _/r, frenulum) needs no further apology or explanation. 



WIN(4-N0TATI()X USED IX PLATES AND TEXT-FIGURES. 



lA, first anal vein — '2A, second anal vein, or axillary vein — 3A, thiid 

 anal vein, or basilar vein — 4A, fourth anal vein (rarelj^ present) — Afj, Af„. 

 Af;;, Af4, Afg, the five apical forks, or end-forks, formed between the final 

 bifurcations of the main veins — C, costal vein — cs, costal space — Cu, 

 cubitus — Cui, Cuo, its primary branches — Cuj^, upper branch of Cuj in 

 Mecoptera; Cu^^, continuation of Cu^ — cnj\ cubital fork — dc, discoidal 

 cell — -/i\ frenulum — ;//, jugal lobe — -jp, jugal process — M, media — M,, M.^, 

 M.J, M4, its four main branches. (Further branchings are denoted byCuj^ 

 suffixes a and h). — mc, median cell — pes, precostal space (in Protomeeoptera) 

 — pdc, post-discoidal cell — prnc, postmedian cell — pf, pterostigma — />/c, 

 post-thyridial cell — pff, pterostigmatic furiow— R, radius; R,, its main 

 stem — rf. radial fork — Rs, radial sector; R2, RgjR^, R5, its four main 

 branches. (Further branchings are denoted by suffixes a and /^ and 

 branchings of the.se bj^ a. a\ or />, /)')• — 'Si-Sj.,, branches of Rs in Plani- 

 pennia — Sc, subcosta — scs, subcostal space — .^dc, subdiscoidal cell — s/nc. 

 submedian cell — ^ thyridium ( = median fork) — tc, tlwridial cell, 



EXPLAXATIOX OF PLATES VII. -IX. 

 Plate vii. (Trichoptera). 

 Fig. 1. — Mempfiyche triareolata, n.g. et sp. Forewing; (xT'o). 

 Fig.2. — Trla.sfiopsi/che diinsfani, n.g, et sp. Forewing; ( x"'.")). 



Plate viii. (Planipennia and Pi'otomecoptera). 



Fig.3. — Protopsychopsis renosa, n.g. et sp. Portion of wing; ( x o). 



Fig. 4. — Arc/iipa/un'pa inagnijica, n.g. et sp. Forewing; ( ■<')). 



Fig.-l. — AirhijKinoi'jia juat/iitjica, n.g. et sp. Hindwing; ( x.')). 



Fig.H. — A rchipanorpa ma<jmtica, n.g. et sp, A small portion of the hind- 

 wing, showing part of a main vein carrj'ing tlie basal tubercles of 

 three macrotrichia, and the membrane above it, with its polygonal 

 mesh work (the ridges left unshaded). l)asal tubercles of eleven 

 macrotrichia (double concentric circles), and small pits for insertions 

 of microtrichia (in black). Semi-diagrannuatic; ( ^ 7H). 



Platf iv. 

 Restoration of fore- and hind wings of A rchipanorpa inagnijica, n.g. et sp. ; 



(■'■■I'J), 



