SCIENCE-GOSSIP. 



i/i 



variflifS and alicrralions, mihIlt wliicli head many nf 

 thiisc fDrnicrly ccmsidtrccl species were classed. 



The first really important elTorl to elucidate the 

 t;cnus was made liy Mr. II. J. KIwes in the Pro- 

 ceedings of the Zoological Society, iSS6, pp. 6 — 53. 

 In this monograph the writer liases his arrangement 

 upon ft lietter character than that used previously hy 

 Menetries, namely, upon the abdominal pouch in the 

 females. This though admittedly a physiological 

 rather than a strictly anatomical character, seems to 

 he a perfectly sound one upon which to group the 

 genus. The horny pouch in the female is demon- 

 strated from practical observations to be found only 



i.a 



3.(x 



3.1 



3. (Irouj) Cakinati. Horny pouch Literally 

 depressed, furnishe<l at its anterior pail with a 

 strongly marked ridge and at its posterior part, with 

 prominent horizontal lamina pointed or rounded. 

 .\ntennae sometimes ringed with white. 1 1 species, 

 /'. afolto, /'. nomion, P. adius, /'. romaiicwi, 

 J', rhotliiii, P. insii;ms, /'. disiolialiis, /'. deliiis, 

 /'. Iioiiraltii, /'. hreimri, P. apolloniiis. 



(iroup4. I.IMHATI. — I'ouch very large, rounded, 

 without ridge, but overlapped above by a bilobale 

 process. Antennae Ijlack. i species — /'. Icnediiis. 



Group 5. Vk.ntkicosi Aust. — I'ouch white, very 

 larije, without any ridge or appendages. Antennae 



I. 

 II. 



HI. 



ABnOlMINAL PofCHE.S OF FeMALE PARNASSIL'S. 



Carinati. Figs, irt-ii, a/€'//<' : Figs. 2(1-2^, f/wc-o/'«/«s. IV. CoRNUTI. Figs. S(l-ii&, cAarUen/us, 



Valvati. Figs. 3n-3A. sniionitis. V. ScAPl*L/\TI. Figs. 6a-6ff, szic/icnyi. 



Cl.NCTl. Figs. ^a-^b. delphlits. V'l. ListBATl. Figs. 'ja--jb. tcncdius. 



VII. \'enticosi. Figs. S«-S4, stubbciidor/ii. 



in the impregnated female, and to be formed of 

 secretion by the male. Yet, it possesses several 

 widely diversified, but constant formations. 



Upon the formation of the abdominal pouch a 

 classification is based by Austaut in his valuable 

 and painstaking work " Les I'arnassiens de la Kaune 

 l'alearctic|ue" Leipzic, 1SS9. 



The following is his ijystem of grouping : — 



1. Group CoRNUTi. Pouch rolled upon itself, 

 without keel or appendix; but on the contrary 

 with' a large though not deep, central furrow. 

 Antennae black. One species, P. chaillonius. 



2. Group CiN'CTl. Horny pouch disposed in a 

 ring completely enveloping the abdomen and pro- 

 longed beneath into a bifid lobe. Antennae black. 

 5 species, P. itamangaiitis, P. dclphiiis, P. traiisiciis, 

 P. s/aiidingiii, P. cardinal. 



black. 6 species, /'. cversmaniti, P.fdderi, P. clariiis, 

 P. iiordmaiDii, P. iiinemosyne, P. slubbendorjii. 



Group 6. \'ai,\ati Aust. Pamass. p. 187.— I'ouch 

 very small and incompletely developed. This section is 

 formed for P. simo and the var. siinoiiiiis. 



Group 7. ScArui.ATi Aust. — Pouch white, very 

 large, but flattened laterally, and enveloping more 

 completely the extremity of the abdomen. Clubs of 

 antennae elongated. This name is applied by 

 -Vustaul to two recently discovered species /'. Orleans, 

 Oberth, and P. szcclienyi Yxw. in " La Naturaliste." 



I make use of Austaut's method of grouping, 

 but in following order : — i carinati, 2. valvati, 



3. CINCTI, 4. CORNUTI, 5. SCAfULATI, 6, LIMUATI, 

 7. VENTRICOSI. 



( To be (ontinticd. ) 



G 4 



