Vol. xxvi) 



ENTOMOLOGICAL 



"99 



before us shows very little variation in either size or colora- 

 tion.* 



Specimens Examined, a6 ; 8 males and i8 femalet. 



liartica. British Guiana. December 19 to 24, 1912 (H. S. 

 Plrish). ia.49 IA.N.S. P.). 



Igarap^ Assu, Pari, Brazil. January 17 to 23, 191 2 (H. S. 

 PWTsh). 7 « . 14 « [A. N. S. P.J. 



ExnAMATioM or Plats VI. 



The outlines of the entire insect arc 4 times natnral sisc; the oChsrs 

 are all irattly enlarged. 



I. Hygromtwtcbmt §tUm (Horse), lliani, Florida. Female. Dor- 

 sal ootline. 



lA. Same. Lateral outline of caudal tibk. iairmsl 



iB. Same Lateral ooUinc of ovipositor. 



a. HygronewtobimM Kmn new ipeaes. Tyfr. Male. Dorsal oatioe. 



aA. Same. Lateral oottins of caudal tibia, catcmaL 



aB. Same. Lateral outfine of caudal tibia, in tern a l . 



aC Hygrautmobma Jinrv new ipecacs. Athtype. Female. Dorsal 

 oMline. 



aD. Same. Lateral outline of ov ip o si tor. 



3. Hygromtmobku SuimUis (Sausmrc). Pctropotit. Brazil Male. 

 Dorsal **iit'inff 



jA. Same. Lateral ootUne of caudal tibia, intcmaL 



4. Hygfvmewutbims Mip^pus (Sanssurc). Ifsrap^ Assu. Brasil. 

 Male Dorsal outline 



4A. Same. Lateral ootline of caudal tibia, internal. 

 4B. Hygronrmobimj albipdput (Sausrare). Igarapi Assn. BraziL 

 Female Lateral outline of ovipo si tor. 



& The number of »pinr* of the dorsal margins of the caudal femora 

 is 3 and 3. abM>lutdy constant in the species of tbe genus examined, as 

 arc 4 and 4 in the spcdcs of Newtobku, Saussure bas given in the 

 original description of thU spedcs 3 snd 4 of these s^na; to ha>«eob- 

 tained this remit he must have counted the dorso>intemaI ^ur. Tnesc 

 spines in tbe material here studied are not as nearly opposite as m 

 Newtobmt and are as a result distinctly ahemating. . 



9. This measurement is aeeeisary but one of tbe most difficult to judge. 



owiiv to tbe necessity of fstimsting die points on the curve of tbe pro- 

 notam where tbe dorsum nns into die lateral lobes. 



