72 LABIDUIIID.I. 



IV. Elytra light brown or deep black (usual) or with a 

 small not perfectly distinct red spot on the disc near 

 the suture. 

 V. Wings abbreviated, slightly developed or promiuent. 



VI. Tirown ring of femora faint or absent, especially in the 

 anterior pair. 



There is presented nearly eveiy stage in the transition between 

 each of these varieties ; that is why, in the author's opinion, it is 

 necessary to sink E. westermmmi, Dohru (labrum yellow, wings- 

 short, anterior femora not I'inged). 



30. Echinosoma parvulum, DoJim. 



Ecliinosoma parvuluiu, iJo/ini, (63) p. 66; Bonn. (00") p. 29; £nrr,, 

 (01) p. 77; Jvirbij, (04) p. 8. 



Size small; colour dark brown, with dense, stiff, dark pubescence,, 

 and numerous thick reddish bristles. Antennae with 19 segments, 

 the first thick and dark yellow, second minute and pale yellow ; 

 the rest grey-brown ; third rather elongate and perfectly cylin- 

 drical ; fourth globular ; fifth, sixth and seventh subcylindrical 

 and a little longer than the fourth : the rest pyriform, but 

 none equalhng the third in length. Head dark brown, broad, 

 depressed, with a few thick bristles ; eyes prominent, mouth- 

 parts yellowish. Pronotum decidedly transverse and a trifle 

 wider posteriorly than anteriorly ; prozona somewhat tumid and 

 metazona flattened ; sides broadly reflexed, all angles rounded,, 

 sides very slightly convex, dark brown, with a few scattered 

 thick bristles. Sternal plates smooth, yellow. Elytra of the same 

 colour, texture and clothing as the pronotum, the shoulders scarcely 

 developed, truncate posteriorly ; in the short-winged form short, 

 scarcely longer than the pronotum ; in the long-winged form quite 

 double as long as the pronotum. Wings either abortive (short- 

 winged form) or long and ample (long-winged form), in which 

 case they protrude very prominently, the scale being even longer 

 than the elytra, of a lighter brown colour, especially near the base 

 and the suture, where the Avhitish membranous part is descernible ; 

 densely clothed with short bristles. Legs yellow, the femora 

 ringed with brown near the base. Abdomen broad and rather flat, 

 nearly pai^allel-sided, ^itli a dense and close pubescence, and rows 

 of yellowish, thick, short bristles ; ventral surface red, smoother. 

 Last dorsal segment in the d strongly transverse, about three 

 times as broad as long, of the same colour, texture and hairiness 

 on the rest of the abdomen, truncate posteriorly ; in the 2 similar, 

 but longer and narrowed posteriorly, the margin subsinuous. 

 Penultimate ventral segment : in the ^ transverse, with a median 

 depression, posterior margin with a round median emargination 

 with thick yellowish pubescence ; in the 5 posterior margin 

 straight. Pygidium: in the J rectangular, very short and very 

 broad ; in the $ short and conical. Forceps with the branches in 



