A NEW MOSQUITO FROM SAMOA. 37 



bands ; in the mid pair very similar, but slightly more prominent ; in 

 the hind the banding still more prominent, in all traces of it on the 

 apices of the segments ; femora and tibiae with numerous black 

 chaetae ; ungues small, equal and simple. 



Wings rather narrow, with dense brown scales, rather broad and 

 straight with shorter and broader median vein-scales ; first fork-cell 

 longer but about the same width as the second fork-cell, their bases 

 about level ; stem of the first not quite half as long as the cell ; 

 stem of the second about half as long as the cell ; posterior cross- 

 vein much longer than the mid cross-vein close to it. Halteres with 

 pale stem and large fuscous knob with pale scales, especially at the 

 apex. 



Length, 4'8 mm. 



Habitat. — Apia, Samoa. 



Observations. — Described from a single perfect female sent 

 me by Dr. K. Friederiks, Government Zoologist of Samoa ; two 

 specimens were taken in a privy. 



It forms a very marked species of Pseudotceniorhynchus, easily 

 told by the brown thorax having no posterior pale spots and by 

 the abdominal ornamentation. The type I have presented to 

 the Liverpool School of Tropical Medicine. 



Dr. Friederiks tells me the other mosquitoes found in 

 Samoa are Stegomyia fasciata, Fab.; Stegomyia pseudoscutellaris, 

 Thorp; Culexfatigans, Wied ; and a species of Mansonia (i.e., 

 J^ceniorhynchus). 



SYNONYMY OF ICHNEUMON OBLITERATUS AND 

 I. BARBIFRONS. 



By Claude Morley, F.E.S. 



Some time ago Dr. T. A. Chapman was so good as to present 

 me with a female of Ichnemnon oblitej'atus, Wesmael (Ichn. 

 Miscellanea, 1855, p. 18), which emerged on August 21st, 1910, 

 from the pupa of Brenthis pales, found at Furka, in Switzerland, 

 on. 28th of the previous month. When first describing the 

 species, Wesmael knew but a single female : " M. le Dr. Kriech- 

 baumer a pris cette femelle aux environs de Coire, en Suisse." 

 Giraud (Ann. Soc. France, 1877, p. 398) says Fallou bred it — 

 evidently still the female only — and adds in a footnote, " L' I. 

 obliteratus provient de chenilles d'Argynnis pales prises en juillet 

 1866, autour de I'hospice du Simplon, dans le Valais," Switzer- 

 land. Berthoumieu in 1894 simply epitomises this (somewhat 

 incorrectly), and adds " Holstein," in Prussia, apparently on 

 his own authority. " Male inconnu." 



Dr. Chapman has just sent me three more females with a 

 single male, bred during August, 1912, at Col d'Iseran, in the 



