(from the article `seed beetle`) ...in length, and black or brown in colour. In adults, the abdomen extends beyond the short forewings (elytra) and the head is extended into a broad, ... ...forms to slender, flat, or wedge-shaped ones, with wide elytra in the tortoise beetles (Cassidinae) and often numerous spines or tubercles in the .....
[n] - larvae live in and feed on seeds of the pea plant
Bruchus pisorum noun larvae live in and feed on seeds of the pea plant