basisternum

basisternum

[¦bās·ə¦stər·nəm]
(invertebrate zoology)
In insects, the anterior one of the two sternal skeletal plates.
References in periodicals archive ?
2, 4); dorsal surface of pronotum with two rows of punctures, each with five to eight punctures; basisternum with medial longitudinal carina slightly developed; middle tarsus as long as middle tibia; abdominal terga 2 and 3 with posterior basal line straight medially (Figs.
5 times longer than posterior notopleural seta; scutellum without spots, ventral margins with some long pale setae apically; anterior anepisternal setae absent; notopleuron, basisternum of prosternum, anepimeron, meron and katepimeron bare; both anterior and posterior spiracles small and fuscous; katepisternal seta 1+3.
0 times longer than posterior notopleural seta; scutellum without spots, lower surface with some pale setae distally, without anterior anepisternal seta, notopleuron, basisternum, anepimeron, meron and katepimeron bare; both anterior spiracle and posterior spiracles small and grey-brown; katepisternal seta 1+2(3).
Morphology and evolution of the insect thorax) the prosternum in Chauliognathus consists of a short basisternum which is continuous with the furcasternum bearing simple, paired furcae.