Illli 



THOS. I,. <!A.SEV. 



I^ljj 



I. TliniiiL'lKiut fjifiiiD/i/ilit'Kg, Lut/iritpus, Deinh-ophiKfus \iw\ lirontea, 

 tlic malt^H art' ili.stin^niislicd fnuri the rciniilt's liy tlic larpT sizo of the 

 foniHT, '.H Wfll as hy (licir lonjr»*r ami iiiurc slciidfr aiitciinac 



'J. Wlii'iicvcr tliiTf is a (iifrcrciicc in tlic Icn^tii n\' tlic first joint of 

 tlic aiilcnn:ic owinu t(i sex. the inalo htw this joint tho ionfrcr. 



Coniintr within closer raiiije, and considorinji the special sexual charac- 

 ters \)\' /iroiifrs. we have the lollnwinj:- facts : 



1. In the male the elytra are much more iruncatc at the posterior ex- 

 tremities than are those of tlie female. 



L'. Tlic last ahdominal setrmont of the female is ahmit e(|ual in Icnjrth 

 to the fourth, wliile in the male the last ahdominal sejrmeiit is nearly 

 twice the len^^fh of the fourth. 



We have therefore two jrcneral and two special sexual characters, the 

 latter in a liciius ackiiowlccl^ed to he very closely allied to //iiniprpliis. 



in /lf'iiiii>ij)/iis initn/ini/tfiiiiis. the larjrer specinu-ns with c lonuate pro- 

 thorax, differ from the smaller with ijuadratc jirothorax in the l'oll(i\vin>;- 

 points • 



1. In the form I r the antennae arc longer and proportionally more 

 slender. 



2. Ill the former tin first joint of the antennae is much cloniratCv^ 

 while in the latter the !irst joint is nearly suh-^lohular. 



15. The elytra of the former are very much more ."(juarely truncated 

 lichiiul than arc tho.se o'' the latter. 



4. The fifth ahdominal seument in the former is Ioniser than tiie fourth, 

 while in the latter it js njual in leni:th to the fourtii. 



One of the larj^cr sp"cimeiis which I have examined happened to have 

 the sexual apjienda^e protrudint:', and I have dissected a small sj)ecimen 

 and examined the eovresjMiniliiiii' a](peiidage. On comparin<j.- these with 

 the penis and ovi|«isitor of /inm/t's. respectively. I find a ireiicral re.sem- 

 hlance, althouiih it is not so .satisfactory as the conclusion derived from 

 the ".fi^neral considerations <iiveii ahove. 



.■^iili-fiiiiiily V. -rTKLElMIAXINAK. 



'i'his suli-family compri.ses two tribes, each of which consi.sts of but a 

 .sinjile ii'cniis. Tlie.se tribes may Ite distiuL^Mshed as follows: 



La^st Joint (if maxillin-y palpi securit'oriii I. Tki.kpiianini. 



Last Jiiiiit III" iiiaxillaiy palpi acuiniiiale 11. Crvi'Tajk.rpimm. 



Tribe I. — Tki.ki'Immm. 

 One jfenus has thus far been described from the reuions here considered. 



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