320 JANKIUIONSIS CiUUUl’ OK GENUS EU150UELLIA (dEUMAPTEUA) 
These speeies, with the South Ainei-ican EuhoreUia janeirensis 
(Dohrii), show a distiiietive type of terminal (levelopnient, in 
whieli the aborted rounded tej^iniua cover all of the uiesouotuiii 
(‘xeept the siuall iiKMliaii seutcllar area, or all but a narrow 
uK'diau ])ortiou of the uiesoiiotuiu. We refer them to what 
we term the Janeirensis (Iroup. This type of tegmina in sonu; 
r('s])ects resembles that d(!veloped in the Indian s])ccies P(iv(i- 
la})is castetsi (Bolivar) and Epilahis peniciUnta (Borelli). Those; 
spc'eics, however, have tlie tegmina much more transvei'sc, with 
cephalic margins parallel to, and se'parated a distance from, the 
caudal margin of the pronotum, so that a narrow cephalic 
mai'ginal ])ortion of the metanbtum is exposed, giving the ap- 
]K'a,i'ance of a v(;ry broad, but shallow, scutellar area. 
In order to avoid further confusion, we give, in the accomi)any- 
ing key, the more striking features of diffeionce between tlu' 
American s))ecies und('i' consideration, lollowing them with such 
additional daJa as is considered of value. 
Kqj (o ike E pedes of the Janeirensis (Ironp 
A. Sc'vc'iilli to ninth atxloininal toiji;itcs of male with latero-cauilal 
anjiles sharply aeuto-angulate i)ro(luced, weakly keeled and weakly rufzjulose. 
(lMf 2 ;hth and lunth abdominal termites of female with latero-eaudal angles 
roundly angidate i)roduced, showing weak traces of keels distad.) Male 
forceps more distinctly bowed, as in EuhoreUia inocsta (Ctene) or the type; of 
extreme specialization develojjed in ami-uliycs', female forceps longer and 
more slender. Limbs unicolorous. (Antennae not annulate.) Caudal meta- 
tarsus no longer than combined length of the succeeding tarsal joints. (Size 
averaging large'^, 12. 7‘* to 14** mm.). (Southern Idorida and Costa Kica.) 
ambigua (Borelli) 
.\A. Sixth to luidh abdominal tergites of male with latero-eaudal angles 
vc'ry shar))ly acute-angulate i)roduced, distimitly keeled and rugose. Male 
forcei)S weakly bowed, as is usufd in (tniiulipeN] temale force])S shorter ami 
lu-avier. Limbs iiot^ unicolorous. Caudal iiK'tatarsus slightly but di.s- 
liiictly longer than combim'd huigth of succcHidiiig joints. 
2 Unless (|ualified tla; length given by us for l)(‘rmai)t('ra is always that 
of the body, exclusive of the forceps. 
^ This is from the (^)sta Bican specimen before us; all of the Florida in- 
dividuals are larger. 
^ A body length of Hi millimeters is given in the original description. 
