棘胫小蠹科和长小蠹科的区别棘胫小蠹科 Scolytidae跗节第1节略短於第2、3、4节之总和(图1、2)。头比前胸窄得多(图33—36)。眼卵形、肾形或分开(图12、13)。长小蠹科 Platypodidae跗节第1节比第2、3、4节总和长得多(图40)。头仅稍狭於前胸(图39)。眼圆形(图39)。 Distinction between Spinytidae and Trichomes Section 1 of the Scolytidae tromeliacs was slightly shorter than the sum of sections 2, 3 and 4 (Figures 1 and 2). The head is much narrower than the chest (Figure 33-36). Eyes oval, kidney-shaped or separated (Figure 12, 13). Section 1 of the Platypodidae section of the moths is much longer than the sum of sections 2, 3 and 4 (Figure 40). The head is only slightly narrowed to the chest (Figure 39). Eye round (Figure 39).