Lathropus jamaicensis Thomas, 2010

Thomas, Michael C., 2010, A review of Lathropus Erichson (Coleoptera: Laemophloeidae) in Florida and the West Indies, excluding the Lesser Antilles, Insecta Mundi 2010 (120), pp. 1-21 : 14-17

Lathropus jamaicensis Thomas , n. sp.

Fig. 7 , 13 , 21 , 32 , 39 , 53

Diagnosis. Length, 1.24mm - 1.68mm. This and the following species are distinct in being unicolorous testaceous and in having well-devel- Figure 46. Lathropus vernalis Casey , female genitalia. oped pronotal sublateral lines ( Fig. 21 ). From the following species, L. jamaicensis can be distinguished by its more strongly developed sublateral line and by the structure of the internal sac ( Fig. 39 ).

Description. Holotype, sex not determined, in FSCA, with label data: “ JAMAICA: St. Catherine Caymanas Est. 17-XI-1968 S.A. Apeji blacklight trap”.

Body ( Fig. 7 ) elongate-oval; testaceous, mouthparts paler. Length, 1.58mm.

Head 1.75× wider than long; surface sculpture extremely coarse ( Fig. 13 ); setae bifurcate; epistome prolonged, comprising 0.33 total length of head measured along midline from front of eyes to front of head capsule, emarginate; antennal scape and pedicel subequal in length, scape broad, pedicel narrower; antennomeres III-VIII quadrate, about equal in length; antennomeres IX-X broader and longer than preceding flagellar antennomeres; XI longer than X; eye slightly convex, about 0.60 length of head.

Pronotum ( Fig. 21 ) 1.36× wider than long; surface sculpture extremely coarsely areolate-rugose ( Fig.32 ); setae as on head; broadest at basal third, broader across base than at apex; sublateral line sinuate, strongly carinate ( Fig. 21 ); anterior angles obtuse, not produced; posterior angles almost right, not produced; lateral margins with four broad denticles.

Elytra 1.60× longer than combined width; broadestnear midlength; margins broadly explanate; microsculpture coriarious.

Genitalia. Sclerotization of internal sac of male genitalia as in Fig.39 .

Variation. The degree of development of the lateral pronotal denticles varies but is always discernible.

Distribution. Jamaica.

Type material. Paratypes,33, with label data as follows: 23, “ JAMAICA: St. Andrew, Kingston, Liguanea Terrace Hotel , 29-X-1968 M.H. Muma, blacklight trap ” ; 5, “ JAMAICA: Parrish St. Catherine Worthy Park Est. 11-VI-1975 R. E. Woodruff blacklight trap ” ; 1, “ JAMAICA: St. Catherine Par., Worthy Park 15- VI-1975 R. E. Woodruff blacklight trap ” ; 7, “ JAMAICA: St. Catherine Caymanas Est. , 17-XI-1968, S.A. Apeji blacklight trap ” ; 4, “ JAMAICA: Manchester Par. Mandeville 23-VIII-1969 J.H. Frank blacklight trap ” ; all FSCA and USNM.

Etymology. Named for the island on which it was collected and to which it may be endemic.

Discussion. This is one of the most distinct species of ther genus and it and the following species approach most closely to members of the genus Rhabdophloeus in shape of the pronotum and possessing a carinate sublateral line.

Figures

Figure 5-8. Habitus, Lathropus spp. 5) L. parvulus Crouvelle (Panama). 6) L.parvulus Grouvelle (Cayman Islands). 7) L. jamaicensis Thomas, n. sp. 8) L. rhabdophloeoides Thomas, n. sp.

Figure 13-18. Surface sculpture of head, Lathropus spp. 13) L. jamaicensis Thomas, n. sp. 14) L. rhabdophloeoides Thomas, n. sp. 15) L. pictus Schwarz. 16) L. chickcharnie Thomas, n. sp. 17) L. vernalis Casey. 18) L. robustulus Casey.

Figure 19-24. Pronotum, Lathropus spp. 19) L. parvulus Grouvelle (Panama). 20) L. parvulus Grouvelle (Cayman Islands). 21) L. jamaicensis Thomas, n. sp. 22) L. rhabdophloeoides Thomas, n. sp. 23) L. pictus Schwarz. 24) L. chickcharnie Thomas, n. sp.

Figure 27-32. Pronotal detail, Lathropus spp. 27) L. parvulus Grouvelle (Panama). 28) L. robustulus Casey. 29) L. vernalis Casey. 30) L. chickcharnie Thomas, n. sp. 31) L. rhabdophloeoides Thomas, n. sp. 32) L. jamaicensis Thomas, n. sp.

Figure 38-40. Sclerotization of internal sac, Lathropus spp. 38) L. chickcharnie Thomas, n. sp. 39) L. jamaicensis.Thomas, n. sp. 40) L. rhabdophloeoides Thomas, n. sp.

Figure 51-56. 51) Lathropus chickcharnie Thomas, n. sp., elytral cell. 52) N. gen, n. sp., elytral cell. 53) Lathropus jamaicensis Thomas, n. sp., antennal club. 54) N. gen, n. sp., antennal club. 55) Rhabdophloeus sp., Brazil, pronotum. 56) Rhabdophloeus sp., Brazil, antennal club.