Ceradryops punctatus Hinton from Sri Lanka is redescribed and illustrated. Notes are made on the habitat of the species

Spangler, P. J.

Staines, Charles L.

English

Spangler, Paul J.

Hochschulschriftenserver - Universität Frankfurt am Main

INSECTA MUNDI, Vol. 15, No.4, December, 2001  243 Rediscovery and redescription of Ceradryops punctatus Hinton, 1937 (Coleoptera: Dryopidae) P. J. Spangler and C. L. Staines Department of Entomology, National Museum of Natural History Smithsonian Institution Washington DC 20560 Abstract. Ceradryops punctatus Hinton from Sri Lanka is redescribed and illustrated. Notes are made on the habitat of the species. Introduction Hinton (1937) described a new genus and spe-cies, Ceradryops punctatus, from a single, damaged female  specimen  collected in August  1908 from Mandulsima, Sri Lanka. There have been no fur-ther papers published on the species. During a joint Smithsonian - Sri Lanka biolog-ical survey led by K. V.  Krombein, some adult C. punctatus were collected on 26 November 1976 2 miles below Ella (Bad District) by G.  Hevel in a seepage over rocks along the road. Specimens were first identified from the original description and later  compared  to  the  holotype  in the  Natural History Museum (London). Specimens are deposit-ed in the collections of  the Smithsonian Institution, the University ofPeradeniya (Sri Lanka), the Nat-ural  History  Museum  (London),  and  the  Field Museum of Natural History (Chicago). Ceradryops punctatus Hinton (Figs. 1-8) Description. Male:  Total length:  1.7-2.0  mm.; width at humeri: 0.8-1.0 mm. Subparallel; moder-ately  convex;  dorsum  covered  with short,  erect, moderately dense setae; margins of pronotum and elytra with a row of longer, suberect setae; ventral surface densely covered with fine,  recumbent to nearly erect testaceous setae; body feebly glossy; legs  glossier,  rufo-piceous;  head behind clypeus, pronotum,  elytra,  and upper surface  of femoral apices and tibial bases black. Head (Fig.  3):  Eye with short, fine, erect, setae on lower 2/3s; slight carina present on inner margin; clypeus with dense hydrofuge pubescense; labrum with anterior mar-gin arcuate; vertex with round punctures which are seldom separated by more than their diameter, seta present in each puncture; interocular area depressed,  impunctate,  with scattered setae; la-brum with punctures finer and less distinct; max-illary palpi with 4 palpomeres (Fig. 4). Antennae (Fig. 5): With 3 antennomeres; basal antennomere slender at base, swollen apically, longer than 2 or 3, with erect, moderately dense stout setae; 2 wider and thicker than 1, apex has two long clusters of 4 stout, curved setae which are longer than ovoid antennomere 3;  3 longer than 2,  cylindrical, with shorter pubescence. Pronotum: Wider than long at maximum width; anterior margin feebly arcu-ate,  nearly truncate,  weakly emarginate behind head; anterior angle moderately prominent, broad-ly rounded; lateral margin strongly arcuate, weak-ly converging toward apex, nearly smooth; posteri-or  angle  inconspicuous,  broadly  rounded;  basal margin bisinuate; disc convex; with shallow, rather broad depression where the transverse impression intersects with sublateral carina; with distinct su-blateral arcuate carina; with shallow transverse impression near apical 113; transverse impression present before  apical  114  which  extends  to  the sublateral sulcus;  surface  punctation similar  to that of head; medial and longitudinal transverse impressions absent. Scutellum: Triangular with angles rounded; longer than wide. Elytron: Wid-est on apical 113; humerus gibbous; lateral margin smooth; surface not striate, densely punctate with-out any arrangements of punctures in rows; punc-tures usually round,  seldom  separated by more than their  diameters.  Prosternum: Apical  112 strongly lobed; process as long as prosternum in middle, parallel between coxae, acute at apex, with sides between coxae strongly elevated, with strong carina-like median longitudinal elevation present from apex to near posterior portion of  coxae; surface indistinctly, finely punctate. Metasternum: Disc with lightly impressed median line extending from base to apex; surface punctation similar to proster-num but with a few coarser punctures. Abdomen: Basal sternite with a  fine carina in middle from base to apex, basal portion of carina indistinct due to rugae; other sterna sculptured as metasternum. Leg (Fig. 6): Tibiae and tarsi sparsely pubescent; profemur with hydrofurge pubescense on basal 112; 244  Volume 15, No.4, December, 2001, INSECTA MUNDI Figures 1-4. Ceradryops punctatus. 1. Dorsum. 2. Venter. 3. Head. 4. Maxillary and labial palpi. INSECTA MUNDI, Vol. 15, No.4, December, 2001  245 Figures 5-6.  Cemdryops punctatus.  5.  Antenna. 6.  Tibia and tarsus. punctation  extremely  fine; tibia with  a golden clean-ing fringe on apical 112 of inner margin; tarsomere 5 longer than I to 4 combined; claws 112 the length of tarsomere 5.  Male genitalia: as in Fig. 7.  Fe-male genitalia: as in Fig. 8. Acknow  ledgments K.  V.  Krombein's field  work was funded  by Smithsonian Research Foundation Grant SEG-O-6955 and travel was provided in part  by grants from the Secretary's Fluid Research Funds. S. L. Shute, the Natural History Museum, provided access to the Hinton type. S.  L.  Staines provided editorial assistance. A.  S. Konstantinov and N. J. Vanden-I O.2mm O.lmm I 1 j 7  8 Figures 7-8.  Cemdryops punctatus. 7. Male genitalia. 8. Female genitalia. berg, Systematic  Entomology Laboratory, comment-ed on an earlier draft of this manuscript. Literature Cited Hinton, H.  E.  1937. Ceradryops punctatus, new genus and species of Dryopidae from  Ceylon (Col.). Proceedings of the Washington Entomo-logical Society 39: 69-81. 

Rediscovery and redescription of Ceradryops punctatus Hinton, 1937 (Coleoptera: Dryopidae)

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