| Mast of egg-case | Long, slender | ? | Short, stout | Long, slender |
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| Larva |
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| Number of nasale teeth | 3 | 4 | 4 | 3 and small ventral irregular teeth |
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| Epistomal lobe | Projecting as far as nasale | Not projecting further than nasale | Projecting as far as nasale | Distinctly projecting further than nasale |
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| Shape of epistomal lobe | Rounded | Rounded, slightly angulate | Rounded | Angulate |
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| Number of setae on gFR2 | 2 | 2 | 2 | 3 (two on apex, one lateral) |
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| FR2 | Present, pore-like | ? | Absent | ? |
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| Position of PA7 | Midlength of head capsule | ? | Posterior third of head capsule | ? |
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| Number of inner teeth on mandible | 3 | 3 | 3 | 2 |
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| Antennal segment 2 | Without cuticular spines | ? | Without cuticular spines | With cuticular spines |
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| Dorsal surface of stipes | Largely membranous | Sclerotized? | Sclerotized | Sclerotized |
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| Maxillary palpomere 1 | Incompletely cylindrically sclerotized | ? | Incompletely cylindrically sclerotized | Cylindrically sclerotized |
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| Cuticular spines on maxillary palpomere 1 | Absent | Present | Present | Absent |
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| Dorsal teeth on mentum | A few teeth | ? | Many teeth (L1), a few teeth (L3) | Many teeth |
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| Secondary setae on distal margin of mentum | 2–4 pairs | ? | 6 or 7 pairs | 3 pairs |
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| Cuticular spines on anterior corner of mentum | Present (indistinct or absent in L3) | ? | Absent? | Absent? |
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| Cuticular spines of prementum | Present | ? | Present | Absent |
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| Ligula | Short | Long, as long as palpus | Long, slightly shorter than or as long as palpus | Very long, more than twice as long as palpus |
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| Ligula | Partly sclerotized | ? | Sclerotized | Membranous |
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| Position of LA12 on ligula | Apical area | ? | Apical area | Subapical area |
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| Thorax and abdomen | Weakly lobed | Lobed | Weakly lobed | Strongly lobed |
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| Dorsal sclerites of abdominal segments 2–6 | One pair of small, oval sclerites | Single sclerite, transverse | Single sclerite, transverse | One pair of sclerites and two transverse sclerites |
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| Abdominal lobes | Membranous | ? | Membranous | Sclerotized |
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