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Show 1897.] OP THE FAMILY ENDOMYCHIDcE. 463 arcuato, angulis anticis et posticis rotundatis, maculis quatuor nigris; elytris singulis maculis septem, fere ut In P. cocci - nellina disposltls; antennarum clava et scutello nigris. Long. 7 millim. Hab. N.E. INDIA, Manipur (Dohertg). B U R M A , Toungoo. This species is allied to P. coccinellina, Gerst., but may beat once distinguished by the four large round black dots on the thorax which extend transversely and at even distances across its arcuate disk. The thorax is at the same time more arcuate and with all its angles more obtuse and round; it is, indeed, very similar in shape to that of many Coccinellidae. The spots on the elytra are more transverse and in general larger than the corresponding ones in P. coccinellina; this is especially true of the intermediate pair, which nearly form a fascia; the exterior spot of these is straight on its outer margin, and even produced a little as if to join the outer subterminal one, but it does not touch the reflexed edge. The seven species of Panomcea which have been described up to the present time are readily distinguished by their markings. The present species with P. pardalina and P. coccinellina have each seven spots on each elytron, P. borneensis has six, P. undecimnotata, Frivaldsky, and P. cinghalensis, Gorh., have five spots, but the latter has but ten joints to its antennae. P. sumatrensis, Gorh., has no spots. These insects appear to m e to be true mimics of the Coccinellidae, and that the resemblance is not merely accidental. P. Indiana so well resembles some species of Leis or Caria, that it would easily deceive a very good naturalist. Indeed in this insect the whole body, especially the prothorax, has become completely Coccinellid. It is true that those points of structure which are not so obvious, e. g. the form of the antennae and prosternum, the absence of abdominal fossae from the hind femora, & c , maintain their Endo-mychid type. BECCARIA, Gorham, Ann. Mus. Genova, ii. p. 5 (1886). BECCARIA WALLACEI, n. sp. (Plate XXXII. fig. 6.) Picea, nltlda, prothorace transverso minute punctato, cequall, sulcis basallbus conclnne Impressls, lateribus haud marginatis antlce angustatls, angulis anticis et posticis acutls, basi sinuato ; convexls, sparslm punctulatis, punctis dlscoldallhus In seriehus qulnque haud regularlter dlgestis, ad apicem evanescentlbus, externe confusls, singulis maculis quatuor aurantiacis, una basall, una subhumerall, una pone medium prope suturam, una subaplcall; antennls dilute plcels, clava fusca. Long. 5*5 millim. Hah. A R U ISLANDS (Wallace). Rather larger and rounder and more convex than B. papuensis; the thorax more narrowed in front and wider behind, and so forming a more even outline with the elytra than is the case in B. papuensis ; the antennae are similar to those of that species, but are thinner, with more linear joints, the apical joint is longer. 31* |
