48 SECOND YARKAND MISSION. 



LACHNOSTERNA (Munich Cat.). 

 24. LACHNOSTERNA STRIDTJLANS, n. sp. 



Testacea, capite, thorace, scutelloque fere ferrugineis, supra opaca, opalescens, subtus 

 abdomine inflato nitido, pectore minus dense villoso ; capite brevi,fortiter punctato ; prothorace 

 spar sissime punctato, fortiter transverse, margine laterali integro, sinuato, angulis posteriori- 

 bus obtusis ; elytris sat crebre parum profunde punctatis. 



Long, 15^ mm., lat., 8 mm. 



Head very short ; margin of clypeus strongly reflexed, not emarginate ; the transverse 

 suture nearly twice as distant from the vertex as from the clypeal margin ; the part of the 

 head hehind the suture rather sparingly punctured with punctures of different sizes, and 

 bearing some long erect setae ; in front of the suture the punctures are deep, and are closer 

 together, and all of one size, and there are no setae. The thorax is very short, the sides not 

 greatly dilated in the middle, the hind angles ohtuse, but not departing greatly from right 

 angles ; the punctuation is distant and not coarse. The scutellum is rather sparingly punc- 

 tured. The elytra are finely and irregularly, and not closely, punctured, and have only 

 indistinct traces of longitudinal impunctate spaces. The propygidium is densely and finely 

 punctured across the middle, but coarsely punctured behind ; the pygidium is shining, and 

 coarsely punctured. The membranous border of the elytra is very small and indistinct ; the 

 epipleural line is sharply elevated in its anterior portion, and when examined with a powerful 

 lens it is seen to be densely and finely crenulate, from the middle of the sternum to the 

 hind margin of the first ventral segment ; by strongly flexing the hind femur, and rubbing it 

 against this line, a considerable stridulation is produced. 



Murree. A single individual. 



Obs. I am acquainted with only one other species closely allied to this ; it is as yet 

 undescribed, and is labelled in my collection " Ancylonycha pulvinosa, Eeiche, India bor." 

 It has the same appearance as L.stridulans, and has, like it, the epipleural line finely crenulated, 

 but it differs considerably in the structure of the antennae and of the claws ; in Lachnosterna 

 stridulans the flabellum of the antennae is rather long, and composed of five joints ; the first 

 leaf is, however, very short, not half the length of the second, which itself is a good deal shorter 

 than the three following ones ; the claws are divided into two rather divergent portions of 

 equal length. In the undescribed Reicheian species, the flabellum is short and composed only 

 of three joints, and the claws of the feet are strongly dentate in the middle. 



I add a short diagnosis of this insect : 



LACHNOSTERNA PULVINOSA, n. sp. 



Ferruginea, elytris dilutioribus, supra opaca, opalescens, subtus abdomine inflato, media 

 nitido, pectore parcius villoso ; capite brevi, dense rufoso-punctato ; prothorace sparsim 

 punctato, punctis in margine anteriori magnis, fortiter transverso, lateribus valde sinuatis, in 

 medio perdilatatis, angulis posterioribus valde obtusis, margine laterali subcrenulato ; elytris 

 sat crebre subtiliter punctatis. 



Long. 16 mm. 



