Ipini Bedel, 1888

Buhroo, Abdul Ahad, 2024, A taxonomic monograph of subfamily Scolytinae (Coleoptera: Curculionidae) in the Western Himalaya, Zootaxa 5533 (1), pp. 1-82 : 37

Tribe Ipini Bedel, 1888

Genus Ips DeGeer, 1775

Ips species are diagnosed by the following morphological characters: body length ranges between 2.2–8.2 mm; funicle is five-segmented; pronotum as long as wide and asperate anteriorly; declivity steep concave, with lateral margins bearing spines, the third always being the largest and often capitate; 1 st interstria before declivity with row of fine granules; spines of lateral declivital margin longer in male than in female; medial tubercles of frons larger in male than in female; filliform setae on medial posterior margin of 7 th abdominal ventrite shorter in male than in female.

Key to the Western Himalayan species of Ips DeGeer, 1775 (reproduced after Buhroo & Lakatos, 2011)

1 Spine 2 and 3 of elytral declivity connected by a tumescent base; 3 the largest but not elongated as in other species, its apex enlarged into a spade-like club with a constriction at its base; 4 smaller and always placed midway between 3 and the lower margin; frons and entire lateral margins of body with dense longish erect setae.................... I. longifolia (Stebbing)

- Spine 3 on the elytral declivity largest and with a knobbed apex; in males the costa of apical margin of elytral declivity is more prominent and spine 4 closer to the lower margin than the 3; frons and entire lateral margins of body with fine and less prominent setae..................................................................... I. stebbingi Strohmeyer