MEMOIRS ON ORIENTAL RHYNCHOTA. 299 



not possible to indicate exactly the natural alliances of this genus, 

 which, however, seems to be struoturally related to Stephanitis, Fieber, 

 ( Tingis of Lethierry and Severin's Catalogue.) 



S. HAVANA, sp. n. 



Macropterous : rostrum reaching to posterior coxse ; antennae : two 

 basal segments very short, third nearly three times as long as the 

 fourth. Hind wings extending well beyond apex of abdomen, elytra 

 extending as far beyond hind wings. 



Long. 6| mill. ; lat. 3^ mill. 



Ceylon : Peradeniya (July 1897, E. E. Green). 



AntennsB (except black apical segment), legs and underside of 

 abdomen reddish-brown. Eyes black. Capital spines pale flavous. 

 Pro-notum (except pale flavous posterior process) blackish -brown, with 

 very short deep bronze pubescence ; carinse, vesicles and elytra pale 

 golden flavous; elytra spotted and clouded with blackish (forming an 

 irregular transverse band across the middle), especially on the membrane. 

 Hind wings infuscate. 



The nymph is remarkable for being laterally greatly expanded, each 

 thoracic and abdominal segment (except the last two abdominal) 

 sending out a stout subeylindric, long, prickly, lateral spine. 



Family BEDUvriDiE. 

 EcTEicHODiA, Lep. Serv. 



The genera Ectrichodia, Ectrychotes, and Fhysorliynchus have been 

 admitted in the third volume of Lethierry and Severin's Cataloo-ue for 

 (sa.y) lateralis^ Lep. Serv., hcematogaster^ Burm., and lucidus^ Lep. Serv. 

 respectively. However much authors may disagree as to certain details 

 of procedure in the fixation of genotypes, there are surely two cases 

 in which no doubt can arise, vi%, : — 



(1) when a new genus is proposed for a single species ; and 



(2) when, at the erection of a new genus, the author indicates a 



certain species as the type. 

 Ectrichodia was founded by Lepeletier and Serville (1825, Enc. Meth., 

 X, p. 279) for a single species, viz., their previously described Reduvius 

 cruciatus ( = Cimex crux, Thunb., 1783), and this species must therefore 

 be the type. Edrychotes cannot stand, since it was avowedly an 

 orthographical alteration of Ectrichodia, and was intended by Burmeister 

 merely to replace that name. Pliysorhynchus^ Am. Serv. (founded for 

 crux^ Thunb., lucidus, Lep. Serv.^ and barbicornis, Fabr.), is co-extensive 

 (? syutypical) with Ectrichodia, Lep. Serv. 



