380 Mr. W. F. Kirby on some 



Mag. Nat. Hist. (6) iii. p. 272 (1889) ; Horv\ Term. Fuz. xxiii. p. 363 

 (1900). 

 Plisthenes ventralis, Horv. Term. Fuz. xxiii. p. 364 (1900). 



Dr. Horvath, who has examined the type of Montrouzier's 

 species, is able to give a distinct character as " articulo quarto 

 antennarum articulo tertio distincte breviore." Following 

 this up he has specifically described a very closely allied 

 species as P. ventralis in which the third joint of the antennse 

 is compared with the fourth a subbreviore." As a synonym 

 of this new species he adds P. dilatatus, Dist. (cf. supra). I 

 cannot quite understand this course, as Dr. Horvath has not 

 seen the specimen thus identified, nor did I in the structural 

 differentiation between the species of Fabricius and Mon- 

 trouzier allude to these characters, as most of my specimens 

 have unfortunately reached me minus the apical antennal 

 joint. I now, however, possess a specimen from the island of 

 Bouro with complete antennas which agrees with Horvath 's 

 character and in all other respects with the specimens I pre- 

 viously identified as P. dilatatus, Montr. Another character 

 relied upon by Dr. Horvath, viz. the intensity of the fascia? 

 to the underside of the abdomen, cannot, with the material 

 before me, be maintained, and is clearly a variable character. 



Plisthenes ventralis, Horv., may be a distinct species, but 

 certainly not if the specimens I identified as P. dilatatus are 

 synonymic with it, as stated by Dr. Horvath. 



XLVI. — Notes on some Insects from the Yang-tse-Kiang. 

 By W. F. Kirby, F.L.S., F.E.S., &c. 



DURING a journey on the Yang-tse-Kiang a small collection 

 of insects was formed by Capt. A. W. S. Wingate, and 

 presented by him to the Natural History Museum in the 

 course of last year. The Diptera were represented by a 

 single species of Eristalis, not in sufficiently good condition 

 for determination ; and the Homoptera were represented by 

 some larvse belonging to the family Flatidse. The dragonflies 

 and locusts were, however, of more interest, and of these a 

 list is given below, including the description of a locust 

 which appears to be new. 



NEUROPTERA. 



O D O NAT A. 



Libellulidae. 

 Neurothemis ftdvia, Drury. 



