48 SECOND YARKAND MISSION. 
Lachnosterna (Munich Cat.). 
24. — Lachnosterna stridulans, n. sp. 
Testacea, capite, thorace, scutelloque fere ferrugineis, supra opaca, opalescens, subtus 
abdomme mjlato nitido, pectore minus dense villoso ; capite brevi, fortiter punctato ; prothorace 
sparsissime punctato, fortiter transverso , margine laterali integro, sinuato, angulis posteriori- 
bus obtusis ; elytris sat crebre paruwi prof unde 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 behind 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 obtuse, but not departing greatly from ri°ht 
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 onlv 
indistinct traces of longitudinal impunctate spaces. The propygidium is densely and finelv 
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 
hmd 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 vet 
undescribed, and is labelled in my collection “ Ancylonycha pulvinosa, Reiche, 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 
equai length In the undescribed Reicheian species, the flabellum is short and composed only 
ot 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. 
Ferrugmea, elytris dilutioribus, supra opaca, opalescens , subtus abdomme inflato medio 
nitido pectore parcius villoso; capite brevi, dense rufoso-punctato ; prothorace spar sim 
punctato, punctis m margine anteriori magnis, fortiter transverso, lateribus valde sinuatis in 
medio perdilatatis, angulis postenonbus valde obtusis, margine laterali subcremlato ; elytris 
sat crebre subtiliter punctatis. u 
Long. 16 mm. 
