ENTOMOLOGICAL NEWS 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 



ACADBICY or NATURAL ICTKNCBS, PHILADKLPHIA. 



Vou XXVI. 



NOV£MBBR. 1915. 



No. 9. 



CONTENTS: 



Catvwt— Sisdiw oa CoMa Ricaa Odo- 



■M»-VI1 A 



Kcil-A« AbcnMioa •! VaMMa muO- 



o»«(L»p ) »5 



D« Imccu Mtrr*(« Uk« Wki4»f nS 



Olraall— A urm TtwhogTawi— tM tmm 



TrtaMud (Hym.) Mft 



H«»>rd— Di fipl I ra awl Onkafttmrn 



Poaad i« tlw Vktally «l Mlaari. 



Flortda. la March. i«is-<rart i) $n 

 PfaakMn-llataa <m BoaMda*. witli 



OHcrlvtlaMal New PonM ( Hyai. ) «i9 

 diaali— TiM OccTrwM ol 9(flklac 



rtoMmUmwt Pmimb to Uarate. 



M y w 417 



W a t w AaoUwf Micralory Moth 

 <L^) 



Hear! Fabr* 4ai 



HmMm Bawa taia CalifctnUa Ballar. 



Mn(Ltpw) 4>4 



Tlwpaea— OclaJila aalpaacf la 



Fabr. at Saavllla. N«w Jcnay (Col. ) U5 



Balaaioloclcal Ulcfalar* 43ft 



IM^a af Soctollaa— BaioM. Sactloa, 



Atmd. Nal. Sd. PUto. (Lap.. INpw. 



Hym.Oa.) 4S> 



PaMaaa CiiWacHi^ Sedal (Colaap.. 



Upw.Hjra.) 4Sa 



Stu<iies on Costa Rican Odonata. 



VII. The Waterfall-DweUers: The Internal Organs of Thau- 

 matoneura lanra and the Respiration and Rectal Tracbeation of 

 Zjrgoptcrous Larvae in gcneraL 



By Puiup P. Calvert. Ph.D., University of Pennsylvania, 

 Philadelphia, Pa. 



(Plalw XV. XVI. XVII. ic. I) 



The caudal tracheal gills of the brva of Thaumatoneura — 

 to give the three most conspicuoas, terminal, abdominal parts 

 the name which they have received in other Zygopteroos larvae 

 — have been described and figured in No. VI of these Studies.* 

 They are very clearly two-jointed, a condition which has also 

 been described and figured by Needhamf for the same parts 

 of the larvae of Bayadfra indica. of an unknown genus and 

 species from Jamaica, of an unknown genus of the legion 

 Podagrion from India and of a species of Pseudagrion. The 

 rescmblnnce between his figure (/. c, pi. v, f. 4) of a lateral 



vs. xjrri. pp. 395- J05. P>- ««• J^Y* *9«5. , . 

 Ti ni .Sews, xxii, pp^ 145-154 pU. iv, v; pp. 34>'347. pL «- 19". 



385 



